An IP address (Internet Protocol Address) is a unique identifier assigned to a device connected to the internet. There are two main types of IP addresses:

• Static IP Address – A fixed IP that does not change. Used by servers, businesses, or users who need a stable connection.
• Dynamic IP Address – Assigned automatically by an Internet Service Provider (ISP) and typically changes at regular intervals.

The frequency of IP address changes depends on the type of connection, ISP policies, and network configuration.

How Often Does an IP Address Change?

1. Dynamic IP Address for Regular Users

   • Most home internet connections use dynamic IP addresses, which change based on ISP policies.
   • IP addresses may change every few hours, days, or weeks, depending on the provider.
   • A change usually occurs when the modem is restarted or when the DHCP lease expires.

2. Static IP Address (Fixed IP)

   • Remains the same unless changed by the user or ISP.
   • Used by businesses, servers, VPNs, or specialized services.
   • Some ISPs offer a static IP address for an additional fee.

3. Mobile Internet and IP Address Changes

   • Mobile carriers often use CGNAT (Carrier-Grade NAT), meaning multiple users share a single public IP address.
   • The IP address may change with every new network connection or at regular intervals.

4. IP Address Changes in Corporate Networks

   • Businesses running servers or VPNs often use static IP addresses for security and network access.
   • In dynamic setups, IP changes depend on the ISP’s policies and DHCP lease duration.

How to Check Your Current IP Address?

• Use online tools such as:
  • WhatIsMyIP
  • My IP Address
• On Windows Command Prompt:

  ipconfig
  ​

• On Linux/macOS:

  ifconfig
  ​

How to Prevent IP Address Changes?

• Request a Static IP from Your ISP – Some providers offer this as a paid service.
• Use Dynamic DNS (DDNS) – Services like No-IP or DuckDNS allow you to assign a stable hostname to a changing IP.
• Use a VPN – Some VPN providers offer the option to maintain a consistent IP address.

Conclusion
The frequency of IP address changes depends on the type of internet connection and ISP settings. While dynamic IPs may change multiple times a day or week, static IPs remain unchanged. If you need a stable IP, you can request a static IP from your provider or use alternatives like dynamic DNS or a VPN.