Overview
IP Address Details (ipinfo.io) returns geolocation and network information for any IP address, including city, region, country, ISP, and organization. It is one of the most reliable IP lookup APIs and works without authentication for basic usage. Paid plans unlock higher rate limits and additional fields.
Beginner Tip
Without a token you are limited to 50,000 requests/month — sufficient for most projects. Append /json to any IP address URL like https://ipinfo.io/8.8.8.8/json for a clean JSON response.
Measurement Record
What actually happened when we called this API from our own infrastructure. Every value below was recorded by the request, not copied from the provider's documentation.
- Request
- GET https://ipinfo.io/8.8.8.8/json
- Result
- HTTP 200 · application/json · 304 bytes · compressed
- Response time
- 184 ms (median of 3) · fastest 171 ms
- Transport
- TLSv1.3 · TLS_AES_256_GCM_SHA384 · certificate issued by Let's Encrypt
- Browser CORS
- Allowed — Access-Control-Allow-Origin: *
- Recorded
- 2026-08-10
Fields Returned
Top-level fields present in the response we captured, with the type and value we actually received.
| Field | Type | Value received |
|---|---|---|
| ip | string | 8.8.8.8 |
| hostname | string | dns.google |
| city | string | Mountain View |
| region | string | California |
| country | string | US |
| loc | string | 37.4056,-122.0775 |
| org | string | AS15169 Google LLC |
| postal | string | 94043 |
| timezone | string | America/Los_Angeles |
| readme | string (url) | https://ipinfo.io/missingauth |
| anycast | boolean | true |
Captured Response
Captured from a real request to https://ipinfo.io/8.8.8.8/json on 2026-08-10. Long arrays and nested objects are truncated to keep the shape readable.
{
"ip": "8.8.8.8",
"hostname": "dns.google",
"city": "Mountain View",
"region": "California",
"country": "US",
"loc": "37.4056,-122.0775",
"org": "AS15169 Google LLC",
"postal": "94043",
"timezone": "America/Los_Angeles",
"readme": "https://ipinfo.io/missingauth",
"anycast": true
} Field Reference
ip The IP address that was queried. city Estimated city associated with the IP address. region State or region name associated with the IP. country ISO 3166-1 alpha-2 country code, e.g. US or JP. org Organization or ISP name for the IP, prefixed by AS number. timezone IANA timezone string for the IP location, e.g. America/New_York. Implementation Example
Calls a real endpoint of this API. Replace any placeholder credentials with your own key.
const url = "https://ipinfo.io/8.8.8.8/json";
const response = await fetch(url);
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data); What Can You Build?
Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.
Common Errors & Troubleshooting
Generated guidance based on this API's documentation, not observed by us. Treat it as a starting point and check against the provider's own error reference.
Measured Score Breakdown
Live HTTP request to the API endpoint
Fully tested on Aug 10, 2026
Technical Specifications
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