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: 856

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
903-856 A Pittsburg TX PSBGTXUNRS0  9533 SOUTHWESTERN BELL 554      
903-856 0 Pittsburg TX   145J TERRA NOVA TELECOM INC. 554   2026-01-10   
903-856 1 Pittsburg TX   9533 SOUTHWESTERN BELL 554      
903-856 2 Pittsburg TX   9533 SOUTHWESTERN BELL 554      
903-856 3 Pittsburg TX   9533 SOUTHWESTERN BELL 554      
903-856 4 Pittsburg TX   9533 SOUTHWESTERN BELL 554      
903-856 5 Pittsburg TX   9533 SOUTHWESTERN BELL 554      
903-856 6 Pittsburg TX   9533 SOUTHWESTERN BELL 554      
903-856 7 Pittsburg TX   9533 SOUTHWESTERN BELL 554      
903-856 8 Pittsburg TX   9533 SOUTHWESTERN BELL 554      
903-856 9 Pittsburg TX   073H TELNYX LLC 554   2021-03-28   

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

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