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: 442

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
939-442 A Guayanilla PR   8645 SUNCOM DBA T-MOBILE USA 820   2026-01-30   
939-442 0 Guayanilla PR   8645 SUNCOM DBA T-MOBILE USA 820   2026-01-30   
939-442 1 Guayanilla PR   8645 SUNCOM DBA T-MOBILE USA 820   2026-02-02   
939-442 2 Guayanilla PR   8645 SUNCOM DBA T-MOBILE USA 820   2026-02-02   
939-442 3 Guayanilla PR   8645 SUNCOM DBA T-MOBILE USA 820   2026-02-02   
939-442 9 Guayanilla PR   8645 SUNCOM DBA T-MOBILE USA 820   2026-01-30   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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