Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 475J CALLWORKS CORPORATION

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
948-213 1 Norfolk Zone 3 VA NRFMVAUC3MD  252   2023-12-01   
956-676 A Brownsville TX HRLNTXDU6MD  568      
956-676 1 Brownsville TX HRLNTXDU6MD  568   2022-05-05   
971-489 A Portland OR PTLDORWAXJY  672   2024-08-11   
971-489 1 Portland OR PTLDORWAXJY  672   2024-08-11   
979-359 A Bryan-College Station TX BRYNTXEH0MD  570      
986-270 A Boise ID BOISID370MD  652   2024-01-29   
986-270 1 Boise ID BOISID370MD  652   2024-01-29   
986-271 A Coeur D'Alene ID CRALIDAB2MD  960   2024-01-29   
986-271 1 Coeur D'Alene ID CRALIDAB2MD  960   2024-01-29   

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Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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