There are several reasons your IP address is on a blacklist or blocklist, and you can easily check your IP address. Your IP may only listed on a single blacklist or blocklist, or even listed on multiple blacklists or blocklists. Each IP blacklist or blocklist uniquely maintained separately and not governed by a central source. Each may have different standards for listing/delisting IP addresses.
If your IP address ultimately blacklisted or blocklisted, this doesn't necessarily mean there is cause for concern. Some blacklists or blocklists automatically add any IP address that is assigned via DHCP from the ISP. DHCP IP addresses are mainly how almost all residential connections connect to the Internet. Business accounts are more likely to be assigned static IP addresses.
We don’t maintain a blacklist or blocklist, but here are the main reasons why your IP could end up being listed. Virus, Malware, or spam. If you've got a virus or malware and your computer is constantly pinging or attempting to communicate with other computers.
Your bound to hit a computer where the admin will see your ‘attack’, block your IP address, and report it accordingly. Furthermore, if you send spam, or run a mail server ultimately not properly configured and constantly send spam. To clarify, that IP address becomes blacklisted or blocklisted.
Furthermore, if you have a DHCP IP address and you're not a spammer and don't have a virus. It's possible that the person who had your IP address before you was. Consequently the person who had it before them, or even the person who had it before them. Only the ISP knows who had the IP address prior to assigning it to you. You may have done nothing wrong.
How Do I Get My IP address Off Of A Blacklist or Blocklist?
You should make sure that all devices on your network not infected. After you've determined your network is clean and that no unauthorized traffic is going out. Find where your IP address ultimately blacklisted or blocklisted and contact them for removal.
Each blacklist or blocklist will have different ways of requesting an IP removal. And just because you've made the removal request, doesn't mean they'll honor your request.
What If My IP Address Remains On A Blacklist Or Blocklist?
That depends. If you're an average home user, having your IP address on a blacklist or blocklist probably won't make a difference with your daily surfing agenda. However, if you're a business and run your own mail server. You may have issues getting unlisted.
You'll need to make sure each device on your network is clean and make sure your mail server is configured correctly. Also the mail server basically locked down, so not allowing to send messages from unauthenticated users.