{outcode}: Lookup Outcode

API: postcodes.io:postcodes.io
Endpoint: /outcodes/{outcode}
Response format: application/json
Auth: unknown
Method: GET
Last Status: 200
Latency: 170ms

Description

Returns the geolocation and administrative data for an outcode (the first part of a postcode, e.g., SW1A).

Parameters (1)

outcode (string, path, required)

Outcode to lookup (e.g., EC1A)

Examples (1)

Lookup outcode openapi-spec
curl 'https://api.postcodes.io/outcodes/SW1A'
import requests

resp = requests.get("https://api.postcodes.io/outcodes/SW1A")
data = resp.json()
import zingu_apis

api = zingu_apis.api("postcodes")
result = api.fetch("outcodes/{outcode}")

for item in result:
    print(item)
const resp = await fetch("https://api.postcodes.io/outcodes/SW1A");
const data = await resp.json();

Probe History

Latency

Status Codes

TimeStatusLatencySize
2026-04-16 02:34:51.985722 200 170ms
2026-04-15 03:47:12.073540 200 185ms
2026-04-14 00:36:50.122260 200 136ms
2026-04-12 15:13:30.357403 200 159ms
2026-04-10 01:29:19.980088 200 112ms
2026-04-09 01:19:35.809831 200 256ms