Autonomous System Number, what are they and why I use them. Where is the IP number from, and who manages the routing. What kind of IP number is it?
Trying to determine if connections made to provided on-line Internet services are from 'real' users can be quite a challenge. Loads of data center visits show that they are scrappers, hackers and or gathering data for SEO analysis. All this traffic is not wanted here. So to be able to filter inbound connections, I needed to know what kind of IP address type it is, and fast. If a visiting IP address is a data center then notify them that they are not welcome. All information, services and tools on this web site are intended for people, not automated systems. And thus this local IP address analysis service came to be. You are welcome to use it to find out about IP address information. An API is also available for remote automation lookup, however if you use the API, please limit your queries to one per second.
Find who is responsible for routing this IP address, the Autonomous System Number, name, location and more info about the entity.
A free IP address to ASN lookup API. Use it, but don't abuse it. This service runs on a no budget mini-computer with limited capacity, aggressive or bad use may lead to IP blocking. Don't request more than once a second please.
Updates to the local database are randomly undertaken, this means that maybe not all recent new routing assignments are known.
Easy to use straight forward API
The only parameter needed is a valid IPV4 IP address.
The API returns JSON formated data