Category & trade
Primary
telecommunications-industry · embed-ft 0.45
Tree path
Business and Finance › Industries › Telecommunications Industry
Group (tier-1)
Also (top-3)
phone-services0.39
Tech stack
CDN
AI readiness
AI-Readiness score
28 / 100 · not-ready · see similar
AI training policy
allowed
Terms of Service
found · https://opencallbook.com/terms
AI-bot protection
AI files
Compliance (GEO / GDPR)
TLD
Overview
Title
OpenCallbook — FCC Call Sign Lookup
Description
The fastest free public lookup for FCC-licensed call signs across Amateur Radio and GMRS. Faceted search, cross-service FRN join, documented public REST API.
Final URL
Language
en (html)
Scanned at
2026-06-25 14:42:45