Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 325 [Rate centres in NPA 325] [Dial plan for NPA 325]

NXX: 773

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
325-773 A Stamford TX SMFRTXSFRS0  9533 SOUTHWESTERN BELL 550      
325-773 0 Stamford TX   903C ONVOY, LLC - TX 550   2014-06-23   
325-773 1 Stamford TX   9533 SOUTHWESTERN BELL 550      
325-773 2 Stamford TX   9533 SOUTHWESTERN BELL 550      
325-773 3 Stamford TX   9533 SOUTHWESTERN BELL 550      
325-773 4 Stamford TX   9533 SOUTHWESTERN BELL 550      
325-773 5 Stamford TX   9533 SOUTHWESTERN BELL 550      
325-773 6 Stamford TX   7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 550   2017-03-03   
325-773 7 Stamford TX   903C ONVOY, LLC - TX 550   2019-02-03   
325-773 8 Stamford TX   516C AT&T CORP. 550   2013-02-13   
325-773 9 Stamford TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 550   2018-06-18   

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

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