Class C IP address Checker

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About Class C IP address Checker

All devices that connect to other devices on the Internet are assigned a unique IP address.

For systems to locate each other on distributed networks, such as the Internet, each node on the network is assigned a unique address.

It is commonly referred to as an "IP address" or "IP". The IP address is a 32-bit binary address that consists of two sub-addresses that identify the network and the network host.

A basic IP address has four sets of numbers ranging from 0 to 255, separated by a (.) in decimal form. For example, is a valid IP address.


Difference between IP classes A B and C

  • Class A addresses always have the first bit set to 0. This leaves only seven bits for the network portion of the address. Class A addresses range from - This means that there cannot be 128 network numbers.

  • Class B addresses always have the first bit set to 1 and the second bit set to 0. This means that 16,384 networks can assign Class B addresses. The numbers range from -

  • Class C: The Class C addresses have their first two bits set to 1 and the third bit is set to 0. This means that 2,097,152 networks can be assigned this address class. The numbers range from -


What is Class C in IP address?

Class C is the most popular class of addresses assigned to small businesses and are the most commonly used IP addresses, for small and medium-sized Internet service providers, purchase a pool of Class C IP addresses and assign them to their customers.

The internet service providers offer dynamic (shared) IP addresses to their customers, This is because, since they are shared, they are cheaper and more popular. On the other hand, users who are assigned IP addresses do not use them 24/7.

When a user signs off or there is no traffic to a website, their IP addresses are assigned to other users and websites.

The benefits of dynamic Class C IP addresses include that they are inexpensive and easier for websites and users who are not heavy users of the Internet.

However, these addresses can be used for a variety of purposes. If you have five people sharing a Wi-Fi connection in your home, you assign a dynamic address to it, or when you're not using the Internet, your address will be assigned to another user who comes up with the signs.

The next time you use the Internet, you will be assigned a different IP address. This IP address will be assigned from the available pool of Class C IP addresses that your Internet service provider has purchased.

What's more, if your website has a dynamic class IP address, it can affect your website's search engine ranking and your SEO efforts could be wasted.

However, when a website that shares the same IP address as yours gets indexed, your website could also get indexed. It happens when a search engine indexes a website.

They don't blacklist a website by just its domain name, but by its IP address as well. The Search Engines when they visit a website do by its IP address, the IP address is the unique identifier of the domain.


ISPs foresee this possibility, and if a site gets blacklisted, they reassign new IP addresses to other sites that shared the same dynamic class C IP address.

ISPs install firewalls and other necessary applications and hardware to ensure that their hosting service provider systems remain "clean" and unaffected by malicious attacks.

Since attackers and other malicious people are constantly engaged in trying to break into websites and damage them internet service providers are forced to take steps to protect their networks and hosting services.

Class C IP Checker Tool

In case you have recently purchased a hosting service for your website, you will be curious to know what other sites share the same Class C IP address.

Because it is more likely that your site has been assigned this class of IP address and that the address is shared with other sites.

You can use this handy tool from at any time to run a class C IP address check at any time.

In addition to that, you can run a bulk IP blacklist checker. You can run this check on certain sites on the Internet.

This test will show if the sites are clean and the tools used to protect them from viruses, spam, and malware.