Does Ip Address Change Every Time

122.174.234.12 //example static IP address

105.235.133.5 //your dynamic IP today
137.190.2.1   //your dynamic IP next week

ISP assigns a permanent unique IP --> Router (with static IP) connects to the Internet --> All devices connected gets internet connection

Device starts up requests IP --> DHCP server assigns available IP --> Device connects to the Internet with dynamic IP --> IP returns to the pool when device disconnects

class HostConfiguration {
    String ipAddress;
    String deviceName;
    //...
}

HostConfiguration myComputer = new HostConfiguration();

public class IspDhcpService {

    private DhcpPool dhcpPool;

    public IpAddress assignIpAddress() {
        IpAddress ip = dhcpPool.getNextAvailableIp();
        return ip;
    }
    
    //...

}

#basic mechanism of DHCP Protocol,no real programming language
Begin:
    Client_device connects_to network
    DHCP discovers_device(offered_IP_address: not_in_use)
    if(Client_device.accepts(the_offer)):
        DHCP.bind(IP_address, device, lease_time)

Yet, the question still remains: Does your public IP address change every time you go online? The truth is, it can, but it doesn't necessarily have to.
Ultimately, whether or not your IP address changes every time you connect to the internet depends on your Internet Service Provider (ISP).

It all comes down to how your ISP handles DHCP:




ISP approach
IP address handling
Dynamic IP allocation with short lease times
Your IP address will likely change often, possibly every time you connect.
Dynamic IP allocation with long lease times
Your IP address may remain the same for long periods, even when you disconnect and reconnect.
Static IP allocation
Your IP address remains constant; it does not change unless manually reconfigured.




To summarize, your computer isn't responsible for getting a new IP address every time you log onto the internet. Rather, it's the communication between your computer and the services provided by Internet Service Providers (ISPs). All these interactions occur following the rules set by the DHCP protocol, which plays a crucial role in dynamic IP allocation and potentially causes IP change each time you connect online. However, depending on the DHCP lease time defined by your ISP and whether they employ static or dynamic IP allocation, your IP could also stay the same through multiple connection sessions.[1]An IP Address or "Internet Protocol Address" is an identifier assigned to a device when connected to the Internet. It's akin to your home address in the digital world, allowing communication between computers. Indeed, these addresses can change - sometimes more frequently than others - based on a few factors such as the type of internet connection, your Internet Service Provider (ISP), and whether you're using static or dynamic IP addresses.

1. Understanding Static and Dynamic IP Addresses:

There are two types of IP addresses: Static and Dynamic. 

Static IP Addresses: A static IP address remains constant each time you connect to the internet. It doesn't change without manual intervention. This method is typically used by servers or for devices providing specific services.
Dynamic IP Addresses: In contrast, a dynamic IP address changes every time the machine connects to the internet or at regular intervals. This is managed via the Dynamic Host Configuration Protocol (DHCP) server, which assigns an available IP address from a pool each time you connect.

Stretching this out further, your ISP applies either Static or Dynamic IP addressing. Most residential users are given Dynamic IPs since it's less expensive and less complex administratively. On the contrary, businesses may opt for static IP addresses because of their reliability, especially where consistent online presence is crucial.

2. How Different Internet Connections Affect IP Change:

Several types of internet connections could determine how often your IP address changes. Here's some insight into that:

a. Residential Internet Connection:

ISPs for residential (home) use generally provide dynamic IP addresses. This is mainly due to its cost-effectiveness and the fact that most users do not require a fixed IP address. Therefore, with this type of connection, your IP address will regularly change. 

b. Business Internet Connection:

Businesses usually demand static IP addresses. They need consistency and reliability as they host websites, VPNs, remote desktop applications, etc., which require a consistent IP address.
 
c. Dial-up Connections:

They assign a new dynamic IP address every time you dial-up (connect) to the service. So, considering this, your IP address would change every time you establish an internet connection.

d. DSL & Cable Internet:

DSL & Cable Internet providers typically use a dynamic IP address system due to cost efficiency but the frequency of change can vary. Some ISPs might change the IP when you restart your modem/router, while others may change the IP after a certain period or don't even change it at all until a network event demands it.

e. Mobile Internet:

Usually, mobile networks assign a dynamic IP address that often changes during sessions or when moving between different cell towers/locations.

Ultimately, the frequency of IP address changes highly depends on your ISP and the type of internet connection you utilize. For exact details about your IP management, it's best to contact your ISP directly.

Here's a simple code snippet showing how to find the public IP using Python:
import requests

def get_ip():
    ip_request = requests.get('https://get.geojs.io/v1/ip.json')
    my_ip = ip_request.json()['ip']  
    print(my_ip)
    
get_ip()


This script makes a request to an API which then returns your currently used public IP address.
You can run that code every time you connect to the internet, and observe if you're assigned a new IP or if it remains consistent.
However, remember the cardinal principle of cybersecurity which emphasizes not leaking your personally identifiable information (PII), including IP addresses, as they can be exploited by malevolent individuals for ill-intents like hacking.
For essential functions tied to static IP addresses or having the same IP over extended periods, consider using VPNs or proxy services as alternative solutions.
Consider viewing this additional article "How Often Does Your IP Address Change?" for a deeper understanding.When an Internet Service Provider (ISP) assigns an IP address, it's typically handled in one of two ways: static or dynamic. 
- **Static IP addresses** are intended to stay the same indefinitely. They're mostly used by businesses and servers.

- **Dynamic IPs**, on the other hand, are assigned from a pool of available addresses. When your router reconnects to the ISP’s network, it may be assigned a different IP.
When you reboot your router, this disconnects and then reconnects it to your ISP. If your ISP uses dynamic IPs, there’s a chance that the IP address assigned after the reboot will differ from the one allocated before the reset. This isn't guaranteed though – it depends on which IPs are currently available in the pool.
The DHCP (Dynamic Host Configuration Protocol), an IP standard which automates IP configuration, plays a vital role here. The IP allocation process is controlled using lease techniques. In simple terms, a 'lease' here refers to the length of time an IP address will be assigned to your router. Once the lease expires, your router requests a new IP from your ISP. 
Let's take a look at how your router requests and gets an IP:

DHCPDISCOVER: The client sends out a broadcast message to discover DHCP servers on the network.
DHCPOFFER: DHCP servers offer an IP address to the client.
DHCPREQUEST: The client requests the offered address.
DHCPACK: The server acknowledges the request and provides the IP to the client.


These steps optimize the utilization of available IP pools while also ensuring scarce resources aren’t wasted.

However, remember that not all ISPs operate in the same way. Depending on your location and provider, your IP might not change as often. Some may only change your IP after extended disconnections, or use "sticky dynamic" IP systems which aim to keep your address consistent for longer periods until forced otherwise.
If it's essential to have a changing IP address, a VPN would be a reliable way to mask your real IP and give you a different address each time you connect to the network.
Refer:

Static IP | Wikipedia
DHCP | Wikipedia
Virtual Private Network (VPN) | Wikipedia

The question asks for an explication of the data transfer mechanism and its impact on your device's Internet Protocol (IP) address, specifically as it relates to the fluctuation of an IP address. To understand this, we'll need to break down the basics of IP addresses before analyzing how data transfer mechanisms can affect them. 
Structured as a numerical label, an IP address serves as a unique identifier assigned to each device involved in a network using the Internet Protocol for communication. This important element in the data transmission sequence is crucial for the accurate delivery of internet packets to the correct destination. 
One must note here that there are two types of IP addresses: dynamic and static. 

A dynamic IP address is one that changes every time you connect to the internet or every time your internet service provider (ISP) deems it necessary. These alterations are managed by the Dynamic Host Configuration Protocol (DHCP), which assigns available IP addresses within a predefined range.
In contrast, a static IP address doesn't change each time you connect to the web. Despite their notable stability, these addresses could be subjected to modifications by your network administrator or ISP, although such occurrences are not as frequent.

While your IP address doesn't have a direct influence on the data transfer process - which includes steps like data packet formation, transmission, reception, and recombination - it does provide essential information about the origin and destination of data packets through the transport layer protocols.

// Here is a simplified pictorial representation of the various layers and their corresponding roles in data transfer.

  

    
Layer
    
Role
  
  

    
Application Layer
    
Data Generation
  
  

    
Transport Layer
    
Transport Protocols Execution
  
  

    
Internet Layer
    
Packet Routing
  
   

    
Link Layer
    
Data Transmission
  



So when does the data transfer mechanism impact the IP address? In essence, it doesn't. A change in IP addresses is typically contingent on your ISP's policies and, to an extent, whether you're working with a dynamic or static IP address. Additionally, relocating to a different geographical area can induce an IP change due to the distinct IP ranges allocated to diverse locations.
In contexts where a device operates on the public internet, the data transfer mechanism might be influenced–decreasing in speed or even experiencing degenerations in connection quality–if your dynamic IP keeps changing during active sessions. Not only could this affect the seamless experience of real-time applications such as Voice over IP (VoIP) systems and online gaming but also FTP and SFTP sessions may get terminated upon detection of a sudden IP switch.
Overall, while IP addresses are paramount for data transfer processes, they aren't directly impacted by these procedures themselves. Instead, mechanisms like the DHCP, the type of IP address, and geographical considerations play major roles in determining any alterations in a device's IP address.Sure, it's imperative to understand that your IP address can indeed change over time. When delving into the subject of VPNs and their relation to IP addresses, I will consider topics such as DHCP leases, Dynamic IP addresses, Static IP addresses, and ultimately how a VPN influences this.
## Dynamic Host Configuration Protocol (DHCP) Leases
Let's begin by understanding DHCP leases. A DHCP lease, at its most basic, is the contractual agreement between a network server and a client, where the server agrees to lease an IP address to the client for a determined period. Once that period expires, the client needs to renegotiate for another lease. If the negotiation fails, then the IP address changes, which occurs quite often in dynamic IP situations.

// This code snipet simulates casual browsing without re-negotation
fetch('https://example.com/data.json')
   .then(response => response.json())


## Dynamic vs Static IP Addresses
Moving on, let's differentiate between dynamic and static IP addresses:
* **Dynamic IP addresses** are frequently allocated to devices upon connection to a network, changes often, and they return to the pool of IP addresses upon disconnection. Here, DHCP plays a key role by actively managing the allocation of IP addresses to avoid overlap.
* **Static IP addresses** are permanent Internet addresses and are used primarily for hosting webpages or services online. These addresses do not change over time unless manually modified.
In the usual residential scenario, you'll find yourself with a dynamic IP address.
## The Role of VPN
Lastly, we have our Virtual Private Network (VPN). A VPN does have an influence on your IP address:
* A VPN acts as a middleman between your computer and the internet. It connects your device to one of its servers and then routes all traffic through that connection.
* This process effectively masks your true IP address, replacing it with the VPN server’s IP address. Hence, if you connect to a VPN server located in Singapore, your IP address will appear to be from that specific region despite your actual location.

// An example of connecting to a VPN using a script
const vpn = require('vpn');
vpn.connect(VPN_SERVER_ADDRESS);


To sum up, under typical conditions, your IP address can change due to factors like DHCP lease expirations or modem resets. With a VPN, your public IP address will change because it hides your real IP address, portraying instead the VPN server's IP address. Consequently, anyone attempting to trace your activities online would only see the VPN server's IP, not yours.
Therefore, if maintaining the same IP address over multiple internet sessions is critical, considering a static IP would be beneficial. On the other hand, if anonymity and privacy are of higher priority, utilizing a VPN service might be more appropriate. Understanding your specific needs would help you make the right decision. 
This way, whether your IP address changes every time or stays constant becomes entirely based on your preferred balance between stability and security.The Internet Protocol (IP) address of any given device can indeed fluctuate. Two main scenarios usually cause this: the rebooting of your router and network switch-offs. For instance, every time you restart your computer or your router, there's a chance that your IP address could alter. Similarly, when the network switches off, your IP is likely to change when you get back online.
Let's first understand what an IP address is and how it's assigned. An IP address is a unique identifier for devices on a TCP/IP network like the internet. Your Internet Service Provider (ISP), for example, Comcast or AT&T, usually assigns these addresses dynamically. Dynamic Host Configuration Protocol (DHCP) servers located at your ISP do this task.
Here's how it works:

Once you attempt to connect to the internet, your router sends a request to the ISP's DHCP server.
The server then assigns you an available IP address from its pool, thus enabling connection.

Now think of a network switch-off as being disconnected from the internet. Your assigned IP might go back to the pool of address spaces once disconnected. Upon reconnecting or switching back on the network, you may not necessarily retrieve the same IP. The DHCP server could assign another random yet available address from the pool.
Be aware that this occurs more often with dynamic IP addresses. Static IPs, as their name suggests, stay consistent even amidst network switch-offs. They're mostly used in enterprise settings where stability is critical.
Have a glance at this simplified representation of dynamic IP allocation below:



Action
IP Address


Initial Connection
192.168.1.2


Network Switch-off
-


Reconnection
192.168.1.3




/*
A pseudocode example for IP assignment process

function requestIpAddress()
{
    connectToDHCPServer();
    assignedIPAddress = DHCPServer.assignIpAddress();
    return assignedIPAddress;
}
*/


Your IP address changing with each network cycle is typically no cause for alarm. It offers some level of privacy as all your connections won't be traceable to a single IP. Unless you have specific needs that require a constant IP, such as hosting a server or using secure shell, dynamic IPs serve standard user traffic perfectly.
You can learn more about how an IP address is assigned from this source. You might also want to check out this article to comprehend better the difference between dynamic and static IP addresses.Surely, the question of IP addresses changing often has raised eyebrows and generated a lot of queries among people involved in both tech and non-tech discussions. One vital point to establish from the get-go is that IP addresses don't always change every time you connect to the Internet. The rate at which they change varies depending on whether they are Public or Private IPs.
Let's delve into the difference:


Table of Contents
Toggle

Public IP addresses
A Public IP is an Internet Protocol address assigned by your Internet Service Provider (ISP) that allows your device to communicate with other devices on the Internet. Arguably the most important fact about Public IPs is their dynamic nature. Thanks to Dynamic Host Configuration Protocol (DHCP), ISPs assign each device a temporary IP address, lasting either for a session or a leased time span. This makes it appear that your IP address is changing every time you go online. However, the recurrence of change varies based on factors like ISP policies, modem restarts, or a significant duration of disconnection from the internet.

# Below is an example illustrating how DHCP assigns IP Address
lease {
  interface "eth0";
  fixed-address 192.0.2.1;
  option subnet-mask 255.255.255.0;
  option routers 192.0.2.254;
  option domain-name-servers 192.0.2.253;
}


Furthermore, there are situations where you might have a static public IP address. These are commonly used by businesses or individuals running servers as they provide permanent IP addresses. They allow easier location finding and connection by incoming requests from outside networks.
Reference: www.homenethowto.com.
Private IP addresses
Private IPs, on the contrary, are used for home, office, and Enterprise LANs, permitting local devices to communicate within the same private network. Unlike public IPs, they don't change repeatedly. Devices keep the same private IP address until the network administrator changes it, the device is moved to a different network, or the network structure is revamped.

# An example of assigning a static IP Address with NetPlan configuration file
network:
    version: 2
    renderer: networkd
    ethernets:
        ens3:
            dhcp4: no
            addresses: [192.168.0.105/24]
            gateway4: 192.168.0.1
            nameservers:
                addresses: [8.8.8.8,8.8.4.4]


In summary, IP address allocation isn't haphazard. How frequently your IP address changes majorly depends on whether it's a public or private IP and the DHCP policies associated with them.
Table Summary



Type of IP
Changes Often?




Public IP
Yes, especially if DHCP assigned


Private IP
No, usually static within a network



For more detail, check out The Difference Between Static & Dynamic IP Addresses.
Indeed, one of the major factors that could make your IP address change every time you connect to the internet is resetting your modem. This is especially true for most home users who are assigned a dynamic IP address by their Internet Service Provider (ISP). Let's get a bit technical and explain this in detail.
There are two types of IP addresses that Internet Service Providers typically assign:

Static IP addresses: These addresses remain the same each time you connect to the internet. They’re used when hosting web or mail servers since they have to be reachable at a constant address.
Dynamic IP addresses: Due to the unavailability of enough IPv4 addresses for each device on the planet to have its own static address, ISPs commonly allocate dynamic addresses to their clients. DHCP, or Dynamic Host Configuration Protocol, handles this dynamism.
See also
NetworkingProtocol
·October 4, 2023·38 min read
Why Is Tcp Used In Smtp
So, when does your IP address change associated with resetting modems?
For dynamic IP addresses, they usually change when you disconnect your modem from the network and then reconnect it; essentially, when you reset your modem. Your ISP sees this as a new connection request and may assign a different IP address from its pool. However, this does not guarantee a new IP address will be assigned every time. If the same IP isn't assigned to another client, you might end up with the same IP again.
Now, let's ponder the questions “Does Your IP Address Change Every Time?” Here’s where it gets interesting. A factor contributing to the illusion that your IP changes everytime might be due to your router's implementation of DHCP Lease. It works like this: 

Your router requests an IP from the ISP.
The ISP offers an IP address with an expiration time, say 24 hours. This is called a DHCP lease.
Your router accepts the offer and holds onto that lease until the expiry time.
When the lease expires, the router requests a new lease, which could potentially lead to a new IP. Some routers however, refresh this lease before it actually expires to retain the same IP.

That briefly explains why the IP address can change periodically or every time you reset your modem, depending on how frequently you do it and your ISP’s policy about assigning IP addresses.
But what if you want to see these changes yourself? Luckily, there’s a way to view your public IP address. You can use online services such as What Is My IP.
To demonstrate the phenomenon of changing IPs after resetting your router, you could follow these steps:

Go to What Is My IP, note down your current IP.
Turn off your modem or router for a few minutes.
Turn it back on.
Check your IP again using the same website. If it has changed, this indicates your ISP provides dynamic IPs and has rotated yours upon reconnection.

If you're a coder and need to handle IP changes programmatically, you could use one of the many available APIs, such as ipinfo.io. In Python, you'd fetch your current IP like this:

import requests
response = requests.get('https://ipinfo.io')
data = response.json()
print(data['ip'])


Running this script before and after resetting your modem would let you see the change in IPs right from your console! Remember, this result might vary based on the factors explained above.
While we mostly tackled dynamic IP addressing, bear in mind there are ways to obtain a static IP as well, either through your ISP directly or by using VPNs or proxy servers, though these methods usually require paid subscription plans. With this mechanism, your IP won't change, regardless of the number of times you reset your modem.
Keep in mind - while manually changing your IP can sometimes protect you against specific IP targeted attacks, it's not a foolproof security measure. No matter how often your IP changes, always ensure you practice safe internet habits to safeguard your data!



Sources and additional readings:


WhatIsMyIP


ipinfo.io


Dynamic Host Configuration Protocol, RFC2131



Analyzing the frequency at which IP addresses change, it's important to note that this is mainly dependent on the type of network connection: Wi-Fi or wired. There is a significant distinction in terms of IP address behavior for each.
- Wi-Fi Networks:

In Wi-Fi networks, your IP address can change periodically. This translates into a possibility of experiencing an IP address change every time you connect and disconnect from the network. The frequency of these changes largely depends on various factors, such as how the router or the ISP has configured their DHCP (Dynamic Host Configuration Protocol) servers, or if the network frequently experiences power outages.

// Example of requesting a new IP Address in a Wi-Fi network
ipconfig/release // This releases your current IP Address
ipconfig/renew // This requests a new IP Address


- Wired Connections:

On the other hand, wired connections often provide more stable and consistent IP addresses. For example, a desktop PC connected to the internet via Ethernet cable could maintain the same IP address for days, weeks, or even months if not modified manually or if the DHCP lease time is long enough.

When considering commercial environments, in many instances, static IP addresses are used. A static IP doesn't change unless manually reconfigured, providing a constant and reliable address for business use.

// Example of setting a static IP address in a wired network
Control Panel -> Network and Sharing Center -> Change Adapter Settings
Then right-click on the wired network, select 'Properties', Click 'Internet Protocol Version 4 (TCP/IPv4)',
Click 'Properties', select 'Use the following IP address'.
Set IP address, Subnet mask, Default gateway accordingly.


To summarize, whether you're using a Wi-Fi network or a wired connection, the frequency of IP address changes can vary. However, generally, it could be said that Wi-Fi networks may experience more frequent IP address changes than wired connections.
For in-depth understanding, you can refer to online material and specification guides relating to DHCP ([reference link](https://www.networkworld.com/article/3327450/what-is-dhcp-and-how-does-it-work-in-networking.html)) and Static IP addresses. It's also suggested to consult your Internet Service Provider for specific details pertinent to your connection type and configuration.Fascinating, isn't it? Even when you're quietly sipping on your coffee, your Internet Protocol or IP address could be flipping and flopping behind the scenes. It's all thanks to the fundamental principle of IP Leasing theory. But does your IP address change every time?
Let's dissect this question: Your device doesn't own an IP, it leases it. The lease can last a few hours, a few days, or sometimes even forever (in case of static IPs). Mapped akin to real estate leasing, you get the keys to a unique IP address for a specified time, after which it needs renewal.
Generally speaking, your IP address won't change every time per se, but let me outline four distinct scenarios where your IP address may indeed change:
1. Your router reboots: This breaks your connection and forces DHCP (Dynamic Host Configuration Protocol) to provide a new IP lease. 

    # Rebooting a router
    /etc/init.d/networking restart 
    

2. Your IP lease expires: As aforementioned, your IP address is not permanent. When the lease period ends, typically set by your ISP, your device asks for a new IP address. 
3. Network changes: If you switch from one network to another like from home Wi-Fi to mobile data, your IP address needless to say, takes on a whole new look.
4. Manual IP change: Either by setting a static IP or refreshing it manually, your IP will undoubtedly change. 

    # Setting a Static IP
    ip addr add 192.0.2.42/24 dev eth0 
    



Old Vs. New
Dynamically assigned by DHCP
Statically or Manually changed


Old IP
192.168.1.101
192.168.1.101


New IP
Could be same or different
Will always be different


Here's where (Network Information: Renew Lease)[https://www.lifewire.com/how-to-renew-dhcp-leases-windows-4175767] comes in handy. Depending on how often these leases renew, your IP might parade multiple wardrobe changes through the day or stay loyal to its favourite blue jeans (stoic static IP).
However, most residential networks use dynamic addressing through DHCP, which means ISPs hold the authority to refresh or maintain your IP upon lease expiration. With billions of devices connecting and disconnecting daily, recycling IPs acts as a practical strategy and hence the penchant for DHCP.
Isn't our journey similar to that of IP addresses in essence? Arrive, make connections, and then be away, only to return anew. Whether or not the IP address changes each time, depends more on external circumstances than any default rule. So, next time you connect online, imagine your device signing a new lease for a virtual home – your delightfully unpredictable IP address.
For a deep dive into the world of IPs and more coding excursions, feel free to savour the details here at (IP: Theory and Practice)[http://www.ipprimer.com/overview.cfm].The geographical location of a device does indeed have an effect on the frequency of changing an IP address. Crucially though, in most cases, whether or not your IP address changes does not solely hinge upon your geographical location, but instead, it largely depends on your Internet Service Provider (ISP).
When you connect to the internet via your ISP, it assigns an IP address to your router or mobile device. Depending on your ISP, this can either be:

A static IP address - which is permanent and does not change
A dynamic IP address - which can change every time you reboot your router or after a set period has elapsed

From a global perspective, here's how geographical location factors in:

In countries with well-developed network infrastructure like the United States or Germany, ISPs often assign dynamic IPs. That's because these nations host many devices connected to the internet, thereby necessitating the continual reallocation of their finite supply of IPv4 addresses.
In contrast, countries lacking robust networks might offer static IPs just as often or even primarily due to lower device densities, thus allowing for a large number of unallocated addresses.


/* Python3 code snippet showing how one could possibly check for a change in IP address */
import requests

def get_public_ip():
    return requests.get('https://api.ipify.org').text

current_ip = get_public_ip()

while True:
    new_ip = get_public_ip()
    if current_ip != new_ip:
        print(f"My IP has changed from {current_ip} to {new_ip}")
        current_ip = new_ip


This block of Python3 code checks your current public IP address by making a GET request to ipify's API. It then continuously polls this same API and prints a message whenever there's a change in your IP.
One thing you'll notice if you run this script while moving physically between places or regions is that your IP address will likely change. This occurs since you've moved outside your previous ISP’s coverage area into another one’s network. Just note that the frequency of these changes will depend on your rate of movement from one ISP’s geographical boundary to its neighboring counterpart’s zone.
For more information about ISPs and shifting IP-addresses, feel free to access this article on 'How does my device's internet connection work?' provided by HowStuffWorks. The preceding hyperlink directs you to an elaborative piece delving into Internet connections, routers, modems, ISPs and the interplay of all these elements as relates ISP allocation of static versus dynamic IP addresses.
Deciphering The Changing Nature of IP Addresses
Every time you connect to the internet, your device is assigned an IP address by your Internet Service Provider (ISP). But have you ever wondered if this address changes each time you connect? Let's delve deeper into this topic.
IP addresses can be static — firmly fixed, or dynamic — changing from time to time. Your IP type is determined by your ISP policy. Here are some factors contributing to the frequency of IP change:

DHCP lease renewal: Dynamic Host Configuration Protocol (DHCP) assigns IP addresses within networks. Every DHCP assignment comes with a designated lease time after which the IP needs to be renewed. If during renewal, the original IP is available it may remain the same; otherwise it could change.
Internet disconnection: Even if temporary, once you disconnect from the Internet your dynamic IP might get assigned to another user and upon re-connection you might receive a new one.
ISP Policies: ISPs also autonomously decide how often they rotate IP addresses for different users.

Most residential users have dynamic IPs due to their cost-effectiveness despite their slight unpredictability. Businesses, on the other hand, prefer static IPs for consistent online identification.
To better understand IP address change, here's a simple python code that prints out your public IP.

import urllib.request
print(urllib.request.urlopen('http://ip.42.pl/raw').read())


Each call to the URL will return an IP address. If multiple calls yield different results, it indicates frequent IP changes
So, does your IP address change every time? It depends - mainly on your configured IP technicalities and individual connectivity behaviour. Consult your ISP for specifics to accurately determine the nature of your assigned IP.
Here's a table highlight these differences:



IP Type
Change Frequency
Cost
Typical Users




Static
Seldom
Higher
Businesses


Dynamic
Frequent
Lesser
Residential users



If further insights about this topic intrigue you, consider visiting popular tech forums like Stack Overflow.