IP Geolocation API

IPv4 / IPv6 → country, region, city, county, postal code, and ASN — sub-millisecond local lookup

<1 ms

Local lookup

Endpoints

1,000

IPs / batch

View Documentation See Pricing Get API Key

What you get

Submillisecond local lookup

MaxMind GeoLite2 mmdb in-memory on the geocoder box — no external API call. p95 under 1 ms.

ASN block

Autonomous System Number + organization name on every response — useful for fraud detection, VPN/proxy filtering, and traffic-source analytics.

Confidence label

Each result is tagged residential / datacenter / anycast / vpn so your code can decide how much to trust the geo signal.

County overlay (US)

For US IPs, FIPS county code is added on top of the standard country/region/city lookup — useful for compliance, demographics, and SLA targeting.

All 3 Endpoints

Method	Endpoint	Description
GET	/v1/ip	Resolve a single IP address to country/region/city/county/ASN
GET	/v1/ip/me	Geolocate the requester's own IP (no parameters needed)
POST	/v1/ip/batch	Batch lookup up to 1,000 IPs in a single request

Example

GET /v1/ip?ip=8.8.8.8&api_key={key}

Response:
{
  "ip": "8.8.8.8",
  "country": { "code": "US", "name": "United States" },
  "region":  { "code": "CA", "name": "California" },
  "city":    "Mountain View",
  "county":  { "fips": "06085", "name": "Santa Clara County" },
  "postcode": "94035",
  "location": { "lat": 37.4056, "lng": -122.0775, "accuracy_radius_km": 1000 },
  "asn":      { "number": 15169, "org": "Google LLC" },
  "confidence": "datacenter"
}