Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 512 [Rate centres in NPA 512] [Dial plan for NPA 512]

NXX: 285

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
512-285 A Elgin TX ELGNTXELDS0  9533 SOUTHWESTERN BELL 558      
512-285 0 Elgin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
512-285 1 Elgin TX AUSTTX92X0X  139F WORLDCALL INTERCONNECT INC. 558      
512-285 2 Elgin TX ELGNTXELDS0  9533 SOUTHWESTERN BELL 558      
512-285 3 Elgin TX ELGNTXELDS0  9533 SOUTHWESTERN BELL 558      
512-285 4 Elgin TX ELGNTXELDS0  9533 SOUTHWESTERN BELL 558      
512-285 5 Elgin TX ELGNTXELDS0  9533 SOUTHWESTERN BELL 558      
512-285 6 Elgin TX   793K TWC IP ENABLED SERVICES, LLC 558      
512-285 7 Elgin TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558      
512-285 8 Elgin TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
512-285 9 Elgin TX ELGNTXELDS0  9533 SOUTHWESTERN BELL 558      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.