Provider certification record

3SNET TELECOMUNICACOES

Listed

Identity

Legal business name: 3SNET TELECOMUNICACOES
Doing-business-as
Foreign Voice Service Provider: Yes
Business address: R Prof Julius Scheidemantel, SC 89090044 Timbo, Brazil
Filing contact: Mateus Klosowski
Network Administrator · NOC
stfc@3snet.com.br
+55 47 3091 0000
Rua Julius Scheidemantel Timbó 89090044 SC
Brazil
Principals, Affiliates, Subsidiaries, and Parent Companies: No parent company, subsidiaries, or affiliates. The company operates independently.

Provider role(s): Gateway provider
STIR/SHAKEN implementation: Role Implementation
Gateway provider None
Overall None
Exemption rules: The filer is a foreign-based voice service provider operating outside the United States and acting as a gateway provider for international traffic. Pursuant to 47 CFR § 64.6300 et seq., the STIR/SHAKEN implementation requirements apply to voice service providers operating within the United States. As a foreign provider, the filer is not subject to these obligations. The filer does not have direct control over the U.S. domestic network where STIR/SHAKEN authentication is applied and therefore cannot implement STIR/SHAKEN within the meaning of the FCC rules. Instead, the filer complies with robocall mitigation requirements under 47 CFR § 64.6305 by implementing measures to prevent illegal robocalls, including caller ID validation, traffic monitoring, and enforcement actions against suspicious or fraudulent traffic.

Role	Implementation
Gateway provider	None
Overall	None

Date	Event	Detail / diff
2026-04-13	New	Initial certification filed and added to database.