License Count: 591,543
Last Updated: Friday, 05-Jun-26 13:00:02 EDT

To use, add a call sign at the end of https://gmrslookup.skywave.org.
Eg: https://gmrslookup.skywave.org/WSES887
All responses are in JSON.

This API is free to use, we kindly ask you to give a shoutout to Skywave Communications Inc. for hosting this service!
The rate limit for the API is 100 requests per minute.
If you have any questions or problems, please email [email protected]!