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: 423

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
939-423 A Ponce PR PBVJPRCO0MD  8645 SUNCOM DBA T-MOBILE USA 820   2024-08-16   
939-423 9 Ponce PR PBVJPRCO0MD  8645 SUNCOM DBA T-MOBILE USA 820   2024-08-16   

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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