Provider certification record

Telecom1 Ltd.

Listed

Identity

Legal business name: Telecom1 Ltd.
Doing-business-as: PlanetPhone
Foreign Voice Service Provider: Yes
Business address: 105 Tsarigradsko Shose Blvd., Non US/Canada 1113 Sofia, Bulgaria
Filing contact: Plamen Balev
Manager · CEO
planetphone@planetphone.net
+359 2 411 2233
105 Tsarigradsko Shose Blvd. Sofia 1113 Non US/Canada
Bulgaria
Principals, Affiliates, Subsidiaries, and Parent Companies: Principal: Plamen Balev – Manager Affiliates: None Subsidiaries: None Parent Company: None

Provider role(s): Voice service provider
STIR/SHAKEN implementation: Role Implementation
Voice service provider None
Overall None
Exemption rules: Telecom1 Ltd. is a licensed telecommunications operator established in Bulgaria, providing voice services exclusively to its own residential and business customers. The company does not provide wholesale transit services or terminate traffic on behalf of other carriers. Telecom1 implements a comprehensive robocall mitigation program that includes customer identity verification (KYC), subscriber authentication, centralized routing, caller ID authorization and replacement, operational traffic monitoring, Call Detail Record (CDR) analysis, investigation of suspicious traffic, traceback support, cooperation with interconnected operators and regulatory authorities, and immediate suspension or termination of services when fraudulent or illegal activity is identified. Only authenticated Telecom1 subscribers may originate calls through the Telecom1 network, and only caller IDs assigned or authorized by Telecom1 may be presented to interconnected operators. Telecom1 maintains records necessary to identify the source of originated traffic and responds promptly to legitimate traceback requests.

Role	Implementation
Voice service provider	None
Overall	None

Date	Event	Detail / diff
2026-07-31	New	Initial certification filed and added to database.