What Is My ASN

Understand which network and ASN your current public IP belongs to.

What this checks

  • Your current public IP address.
  • The ASN and registered network/organization that owns it.
  • ISP/operator, country, and network type (residential, hosting, mobile, etc.).

How to interpret results

  • A hosting or datacenter network type on a home connection often indicates a VPN or proxy.
  • The ASN organization shows who actually routes your traffic, which can differ from your ISP's retail brand.

Common issues

  • Carrier-grade NAT and mobile networks can show a regional carrier ASN rather than a local one.
  • Some IP intelligence fields may be partial for newly allocated or small networks.

Privacy note

This tool reads only your current public IP via the site's first-party lookup and does not store it beyond serving the request.

Key Tools and References

Frequently Asked Questions

What is an ASN?

An Autonomous System Number identifies the network (ISP, hosting provider, or organization) that controls a block of IP addresses and announces its routes on the internet.

Why does my ASN differ from my ISP brand?

ASNs often belong to the upstream carrier, a parent company, or a mobile/cloud operator, so the registered network name can differ from your consumer ISP brand.

Why does the ASN change when I use a VPN?

A VPN routes traffic through its provider's network, so the detected ASN and organization reflect the VPN's exit network rather than your home ISP.