IP address, AS number and network lookup
Registration, routing and location data for every IPv4 and IPv6 address. Built from the RIPE NCC and the other regional internet registries, refreshed every day.
Highest rated networks
Full list| #1 | AS1257 | Tele2 Sverige AB | European Union | 96.7 |
| #2 | AS8220 | COLT Technology Services Group Limited | United Kingdom | 96.6 |
| #3 | AS13237 | euNetworks GmbH | Germany | 96.6 |
| #4 | AS8551 | Bezeq International Ltd. | Israel | 96.4 |
| #5 | AS39686 | Eurofiber Nederland BV | Netherlands | 96.1 |
| #6 | AS12637 | SEEWEB s.r.l. | Italy | 96.0 |
| #7 | AS55850 | Mercury NZ Limited | New Zealand | 95.9 |
| #8 | AS57043 | HOSTKEY B.V. | Netherlands | 95.6 |
| #9 | AS20764 | CJSC RASCOM | Russia | 95.6 |
| #10 | AS38195 | Superloop | Australia | 95.4 |
The rating estimates size and use of an AS number from public routing and registry data. How it works.
Everything about an address on one page
Each lookup combines the registry record, live routing data and a location with its source, so you can see where every value comes from.
Registration
The inetnum or inet6num record, holder organisation, status, parent allocations and the abuse contact.
Routing
Origin AS from the longest matching BGP route, announced prefixes, upstreams, downstreams and peers.
Location
City and country with a confidence level and the source it came from: geofeed, registry coordinates or RIPE IPmap.
JSON API
The same data as JSON over HTTPS. Free API keys with higher limits, CORS enabled, no SDK needed.
A location you can check
Most IP databases give a city without saying where it came from. We show the source for every answer and use the most reliable one available for each address.
- Operator geofeed
RFC 8805 files published by the network itselfHigh - Registry coordinates
geoloc: attribute on the inetnum objectHigh - RIPE IPmap
Latency measurements from RIPE Atlas probesMedium - Registry record
City named in the netname or descriptionMedium - Registered address
Address of the holder organisationLow
One request, plain JSON
Works without a key for light use. Create a free key for higher limits and usage statistics.
$ curl https://ip-fd.net/api/v1/ip/193.0.6.139
{
"ip": "193.0.6.139",
"network": { "prefix": "193.0.0.0 - 193.0.7.255", "netname": "RIPE-NCC", "country": "NL" },
"asn": { "asn": 3333, "name": "RIPE-NCC-AS", "route": "193.0.0.0/21" },
"location": {
"city": "Amsterdam", "country": "NL",
"source": "ipmap", "confidence": "medium"
},
"abuse": { "email": "abuse@ripe.net" }
}
Network tools
Checks for DNS, mail and TLS configuration that work well next to an IP lookup.
Browse by country
Address space, registered AS numbers and the largest networks per country.