Is my IP address on a blacklist? I would have never thought it would be on a list. But after several issues with various web sites and services such as Playstation Network and Amazon Video, I discovered my auto-assigned public IP from my Internet provider was on a Blacklist.
One day I went to access Playstation Network and received “Access Denied”. PSN often has issues, so I ignored it and moved on. A few days later I went to watch some Amazon Prime Video and got an error. Again, I figure Amazon has some issues and I moved on.
Then during typical, everyday web browsing I started to receive Captcha requests. At this point I started to sense that something was not quite right.
All home networks run with a single public-facing IP address coming from our Internet providers. The single public IP address at the router turns into private IP addresses for the devices in our homes. Every Internet-connected device from our computers to tablets to smartphones gets an IP.
Our public IP address often changes (or renews). So while one day your IP might be 22.214.171.124, the next time you get a renewal it could be 126.96.36.199.
So the real question is, what happens if I get an IP address that is on a blacklist?
First off, you will notice some service degradation and possibly some denial of services. If you received these, you will need to check if your public IP is on a blacklist.
Check if an IP Address is on a Blacklist
An easy way to check if your public IP is on a blacklist is using WhatIsMyIP. As shown below my IP at the time was flagged on several sources.
How To Fix A Blacklist IP
In my case, the easiest way was to contact the Internet Service Provider to get a new IP. I used the provider’s online chat and within 20 minutes had a new IP leased to me. I am unsure if the old public IP I used was removed or placed back into circulation.
It appears to be more work if you have static IP. You need to contact each blacklist source / clearinghouse and get your IP removed.
Why Do Service Providers Check the Blacklist ?
Denial of Service is one reason that many service providers, such as Playstation Network and Amazon, will cross-check your public IP with a database of known flagged IP addresses.
Based on this check against one or many sources will determine if you are denied access to a service. It seems more and more companies are using these services to check if your IP is clean.
Example – Playstation Network Access Denied
One test to confirm the issue was with my home network, and not PSN, was the use my cell phone data plan. I was successful logging into PSN via AT&T Wireless. When I connected to my WiFi network to access same PSN login page, I got the below “Access Denied” page.
Example – Amazon Video Denied
The Amazon error was interesting in that it referred to a Geographic issue, basically stating that I wasn’t in the US to watch US content.