How to valid IP addresses?

In order to help your programming or testing tasks, FYIcenter.com has designed this online tool for you to validate any given IP address.

All you need to do is to enter an IP address and click the "Validate" button. Validation result will be displayed in the result area.

Validation result by FYIcenter.com - IP Address:

Specified IP Address: Valid ✔

IP Address: 64.233.161.147

What is a valid IP address?

An IP address is an identification assigned to a computer host on the Internet. The current version of IP address (version 4, IPv4) uses 32 bits or 4 bytes to represent IP addresses. This format gives 4,294,967,296, about 4,294 million, possible unique IP addresses.

A 4-byte IP address is normally represented with 4 decimal numbers separated by dots (.). For example, 64.233.161.147 is a version 4 IP address. Validation of this IP address format is very simple.

But not all IP addresses are assigned to computer hosts on the Internet. A lots of them are reserved for special uses only. Here are some examples of reserved IP address ranges:

• 127.0.0.0 - 127.255.255.255: Reserved for loopback and private network use only.
• 10.0.0.0 - 10.255.255.255: Reserved for private network use only.
• 192.168.0.0 - 192.168.255.255: Reserved for private network use only.
• 192.88.99.0 - 192.88.99.255: Reserved for IPv6 to IPv4 relay use only.

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