Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 939 [Rate centres in NPA 939] [Dial plan for NPA 939]

NXX: 421

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
939-421 A Vega Baja PR PBVJPRCO0MD  8645 SUNCOM DBA T-MOBILE USA 820   2024-07-26   
939-421 0 Vega Baja PR   8645 SUNCOM DBA T-MOBILE USA 820   2024-12-01   
939-421 1 Vega Baja PR   8645 SUNCOM DBA T-MOBILE USA 820   2025-01-10   
939-421 2 Vega Baja PR   8645 SUNCOM DBA T-MOBILE USA 820   2025-04-05   
939-421 3 Vega Baja PR   8645 SUNCOM DBA T-MOBILE USA 820   2025-07-08   
939-421 7 Vega Baja PR   8645 SUNCOM DBA T-MOBILE USA 820   2024-07-26   
939-421 8 Vega Baja PR   8645 SUNCOM DBA T-MOBILE USA 820   2024-07-26   
939-421 9 Vega Baja PR   8645 SUNCOM DBA T-MOBILE USA 820   2024-07-26   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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