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: 855

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
903-855 A Pittsburg TX PSBGTXUNRS0  9533 SOUTHWESTERN BELL 554      
903-855 0 Pittsburg TX   9533 SOUTHWESTERN BELL 554      
903-855 1 Pittsburg TX   9533 SOUTHWESTERN BELL 554      
903-855 2 Pittsburg TX   9533 SOUTHWESTERN BELL 554      
903-855 3 Pittsburg TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 554   2005-05-22   
903-855 4 Pittsburg TX   9533 SOUTHWESTERN BELL 554      
903-855 5 Pittsburg TX   9533 SOUTHWESTERN BELL 554      
903-855 6 Pittsburg TX   9533 SOUTHWESTERN BELL 554      
903-855 7 Pittsburg TX   9533 SOUTHWESTERN BELL 554      
903-855 8 Pittsburg TX   318C CEBRIDGE TELECOM TX , L.P. - TX 554   2007-01-10   
903-855 9 Pittsburg TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 554   2005-08-18   

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

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