What is an IP Address and the different types of IP address?

The A, B and C Class IP address in web hosting

I have written several articles about multiple IP PBN SEO hosting, and I see there was some confusion still on the internet about understanding what is an IP Address and the different types of IP addresses such as A, B and C Class in hosting.

In this paper, I will go into looking at each type of IP address and references some sites to further check for the accuracy of the difference of each type of IP address class.

I’ve been doing SEO since 2014 and one of the earlier guys who used PBN hosting aka private blog network hosting with unique IP addresses to host my PBN SEO sites. Back then I look at the uniqueness of each IP address when hosting my domains. I wanted unique IP addresses when buying PBN/SEO hosting. Mostly back then for the cheaper prices, we got the Class IPs and that looked like >

There are many articles that explain what is an IP address and in relation to answering people who search on the internet for what is my IP address, but in this guide I will talk about the relation to web hosting technology.

What is an IP address?


An IP address stands for internet protocol which is a unique number that will help identify a device or web address. These addresses help transfer data in between devices and help internet users navigate the web to visit a particular web address. This is how the fundamental of the internet works by helping exchange data between different computers, routers and finally to websites that users can access.

Each IP address consists set of numbers ranging from 0 to 255. Example to

The IP addresses are mathematically constructed and allocated by the world Internet Assigned Numbers Authority (IANA), a division of the Internet Corporation for Assigned Names and Numbers (ICANN) as per the web data shown.

According to the internet, the ICANN is a non-profit organization that was founded in 1998 in the United States. One more thing about the ICANN is that wherever someone registers a domain on the internet, say for example on https://www.seekahost.app/domain-name-search/ SeekaHost or any registrar pays a fee to ICANN to register the domain.

How many types of IP addresses are there?

Now let’s look at how to identify the A, B and C Class IP Addresses of Your Multiple IP Hosting.

Using Multiple IP hosting and confused about what is an A, B and C Class IP address?

In this short guide, we have presented some data that can help you understand.

We gathered the information after much research and referencing this guide.

We recommend you read the full article to understand in detail, however, the below extraction of Network classes will give you the simplified answer to what are A, B and C Class IP addresses.

Watch > Classes of IP Address: Class A, B, C, D and E – YouTube before reading any further.

What are the types of IP address with example?

Internet addresses are allocated by the InterNIC, the organization that administers the Internet. These IP addresses are divided into classes. The most common of them are classes A, B, and C. Classes D and E exist but aren’t used by end-users. Each of the address classes has a different default subnet mask.

The different types of IP address

You can identify the class of an IP address by looking at its first octet. Following are the ranges of Class A, B, and C Internet addresses, each with an example address:

  • Class A networks use a default subnet mask of and have 0-127 as their first octet. The address is a class A address. Its first octet is 10, which is between 1 and 126, inclusive.
  • Class B networks use a default subnet mask of and have 128-191 as their first octet. The address is a class B address. Its first octet is 172, which is between 128 and 191, inclusive.
  • Class C networks use a default subnet mask of and have 192-223 as their first octet. The address is a class C address. Its first octet is 192, which is between 192 and 223, inclusive.

Reference: Source article.

Going further, I can explain about A Class IP address:

See the > It consists of four parts called: Class A, B, C, D. In this address, figure 74 is called Class A; 86 is class B; 246 is class C, and 210 is class D.” as per web data. However, such IP then should be called as different class multiple IP hosting.

If selling unique A Class IP hosting, what’s needed is ex: and and both Ip’s is A-Class because 1st Oct is different 104, and another one is 78.

There is a big demand for unique C Class IP hosting on the web as per Google data and the right C Class IP address for a hosting account should be >


However, if we look up for > it’s a C Class


As per the web, the C Class is


Sites to check your IP address class:



you can read further on https://www.meridianoutpost.com/resources/articles/IP-classes.php

To get a thorough understanding of the IP Addresses and what are A, B and C Class IP address in hosting see the below table.


Source https://en.wikipedia.org/wiki/IP_address

Checking web tools for validity.

For this testing, I took the IP address which this blog http://businessmensedition.com/ assigned in the seekahost.app portal when hosting using PBN hosting plan.


Next, let’s look at a B Class IP address which is assigned for the private blog http://bnmagazine.co.uk/


It’s a private blog hosted via the SeekaHost.app one of the PBN hosting plans.

I used the https://www.searchenginegenie.com/domain-ip-class-checker.php and the IP address type came out as B Class.


When I used the https://www.linkwebbie.com/apps/index/ip-class-checker/ it also came as B Class.


Let’s look at a C Class IP address:


The above shows that these two sites are accurate and pick up the type of IP class correctly matching with the explanation about what are A, B and C Class IP addresses according to the different default subnet mask.

Read further about D and E class IP addresses at https://www.guru99.com/ip-address-classes.html and 5 Classes of IPv4 Addresses [Class A, B, C, D and E] (meridianoutpost.com)

If you looking for multiple IP PBN SEO hosting, check at https://portal.seekahost.app/ or plans on www.seekahost.app /

I took the IP check below IP checkers:





as the first octet is between 0 – 127 **Its first octet is 51, which is between 1 and 126, inclusive.

There are many tools on SEO sites states C class IP checker and they are not valid and I would say use the below sites:

to check the IP address and class.

If you did buy PBN/SEO unique IP hosting from SeekaHost, you can check the IP address assigned for your blogs by using the above-mentioned sites. If you have any questions about the class of your IP address, contact us or request a call back by one of the SeekaHosters.

Looking for multiple IP PBN SEO hosting, check at https://portal.seekahost.app/ or plans on www.seekahost.app / https://www.seekahost.com/pbn-hosting/ and https://www.seekahost.com/seo-hosting/

For A Class IP hosting > https://www.seekahost.com/a-class-ip-hosting/

For B Class IP Hosting > https://www.seekahost.com/b-class-ip-hosting/

If you need C Class IP address or a specific set of IP ranges, you can request it at SeekaHost via live chat support or best request a consultant to call back.

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