Free tool · China & network
IP to ASN and country lookup
Enter an IP address or AS number to see the AS number, network name and registration country.
- AS number
- Network name
- Registration country
- Registry
- Country where the address is located
This resource is not in the AFRINIC, APNIC, ARIN or LACNIC statistics. If it belongs to the RIPE NCC region, the RIPE Database has its registration. Look it up in the RIPE Database
IP Geolocation by DB-IP (opens in a new tab) — IP to ASN Lite, CC BY 4.0 (opens in a new tab).
ASN registration data: RIR delegated statistics from AFRINIC, APNIC, ARIN and LACNIC; the snapshot date is shown with each result. RIPE NCC region: see the RIPE Database (opens in a new tab). Registration country is where the resource was first allocated, not necessarily where it is used.
How this works and its limits
Lookups combine open IP-to-ASN data with the delegated statistics of the regional internet registries, refreshed as dated snapshots. An address lookup may also add the country where the address is located, from a live IP data service. Sources and licenses are credited below and next to every result.
The lookup shows the AS number, its registered name where one is available and the registration country, and for some addresses the country where the address is located. It never shows a city, routes, upstream providers or peers.
Data sources and licences
Operator names, brands and codes shown here are public reference data compiled from national regulators and other public sources. Their appearance does not indicate any partnership, endorsement, agreement or connectivity between unicomam.com and the named operators. All trademarks belong to their owners. Data is provided “as is” with no warranty; verify against the official source before relying on it for routing, billing or compliance decisions.
Regulatory information is for reference only and is not legal advice; check the regulator link and the “last verified” date.
IP address data is powered by IPinfo (opens in a new tab) — IPinfo Lite, CC BY-SA 4.0 (opens in a new tab).
IP Geolocation by DB-IP (opens in a new tab) — IP to ASN Lite, CC BY 4.0 (opens in a new tab).
ASN registration data: RIR delegated statistics from AFRINIC, APNIC, ARIN and LACNIC; the snapshot date is shown with each result. RIPE NCC region: see the RIPE Database (opens in a new tab). Registration country is where the resource was first allocated, not necessarily where it is used.
What an AS number is
The internet is made of networks, and each one that routes traffic independently has an autonomous system number, or ASN. Every public IP address belongs to a block announced by an autonomous system, so an IP lookup tells you which network a host sits in.
Regional internet registries allocate address blocks and AS numbers, and their records show where each was first registered. The registration country and the place a server actually runs can differ.