Quick Answer: Is Public IP Address Unique?

Does everyone have a public IP address?

The Answer.

SuperUser contributor fedesismo has the answer for us: In general terms the answer is yes, public IPs are globally unique.

In the context of IPv4, the IPs (v4) known for not being unique are private IPs..

Do public IP addresses change?

Yes, it will change when you log off from your ISP, and then log back on. Usually. If your account was set up with a “static IP” then your ISP will give you the same IP address every time you log on.

How do you tell if an IP address is public or private?

Public IP address are the IP addresses which have to registered before use. IANA is responsible for register these IP addresses to the organizations. Private IP address are the IP addresses which are reserved by IANA and they are not routable in the internet. These addresses will be not assigned to any organizations.

Is 192.168 private or public?

192.168. Note that only a portion of the “172” and the “192” address ranges are designated for private use. The remaining addresses are considered “public,” and thus are routable on the global Internet.

What are public IP addresses?

A public IP address is an IP address that is used to access the Internet. … The presence of a public IP address on your router or computer will allow you to organize your own server (VPN, FTP, WEB, etc.), remote access to your computer, video surveillance cameras, and access them from anywhere in the global network.

Is public IP unique?

Public IP address. A Public IP address (External) is assigned to every device that connects to the Internet and each IP address is unique. Therefore, there cannot exist two device with the same public IP address.