Why Would an IP Address be Blacklisted?

An IP address serves as your personal identification tag – each device that is connected to the internet in some way is assigned an IP (internet protocol). This address is a unique identifier and can be used as a means of facilitating the transferal of data. An IP address can also be used to trace your physical location, and as a means to block access to certain networks or websites.

An IP blacklist is one of the simplest and most effective forms of access denial in the world of computing and many businesses and websites actively manage an IP blacklist database to control access to their services. While in most cases, a blacklist will have been assigned for a valid reason; there are instances where the ban has been enforced without cause. Due to these facts, it is important to understand why your IP address may be blacklisted.

1. Your device has been infected with a virus

This is the most common form of unfounded IP blacklist, and in most cases, it is not your fault. While surfing the web or checking emails, you may have fallen prey to a virus or a piece of malicious software. This, in turn, could have been broadcast through your internet connection to any websites or networks that you have attempted to connect to. Thus, your IP may have been blacklisted to protect the integrity of the recipient’s network. Once you have removed the virus, you may then be able to contact the service or business you have been blacklisted from and explain to them the situation.

2. You have engaged in illicit activities

If you have engaged in any unlawful activity or illicit business, you may be blacklisted on a number of different networks; you may even be blacklisted by your internet service provider. Those who have engaged in cyber-crimes, illegal trade, or darknet activity could be blacklisted as they are viewed as a potential threat to the safety of others.

3. You are running a certain type of software or application

Some ISP’s and businesses will block the use of a certain type of program, web application or browser – This could be due to internal reasons, or as the business deems the application to have potential security flaws. Examples of software that could land you an IP ban could be third-party web browser applications or unknown operating systems.

4. You operate a website that is deemed inappropriate

A website may be IP blacklisted if its content is deemed inappropriate. This could be pornographic material, black market trade, or sensitive subjects such as weapons and arms deals. Internet Service Providers or even government agencies could actively block websites such as these and prevent users from accessing them.

5. To prevent spying and/or preventative action

Many live streaming providers may actively maintain an IP blacklist database to prevent government agencies or authorities from viewing their services and content. This can act as a great means of defense and prevent this type of business from receiving persecution.

As you can see, there are many reasons as to why an IP address could be blacklisted. While this serves as a strong form of defense, there are means of avoiding IP blacklist bans such as using a VPN service.