ANATEL's had a useful on-line system (in Portuguese) where the standard rates of all available carriers could be compared for the particular long-distance call one wants to place, but it was cancelled by 2013 March.
Anatel
Web Site
Anatel Br - Codes of Brazil +55 BR - Country Code for Mobile Phones and Whatsapp
Anatel Br - Codes of Brazil +55 BR - Country Code for Mobile Phones and Whatsapp
Anatel Brazil
Anatel 2024 CCIA Submits Comments Responding to ANATEL Consultation on Connectivity Investment - CCIA Computer and Communications Industry Association
Anatel sets conditions for agreement between Winity and Telefônica BNamericas English
Brazil's Anatel calls for simplification and reduction of telecoms taxation Developing Telecoms
Brazil telecom sector rebounds in 2023 after eight years of decline Telecompaper EN