Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 903 [Rate centres in NPA 903] [Dial plan for NPA 903]

NXX: 370

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
903-370 A Waskom TX LGVWTXBA47Z  6529 T-MOBILE USA, INC. 554      
903-370 1 Waskom TX LGVWTXBA47Z  6529 T-MOBILE USA, INC. 554      
903-370 2 Waskom TX MTENTXXA0MD  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 554   2025-09-28   
903-370 3 Waskom TX LGVWTXBA47Z  5562 METROPCS, INC. 554   2026-07-11   
903-370 9 Waskom TX LGVWTXBA47Z  6529 T-MOBILE USA, INC. 554      

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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