Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 7421 AT&T - LOCAL

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
203-513 6 Huntington CT NWHNCT02X5X  920      
203-529 A Wilton CT NWHNCT02X5X  920      
203-529 9 Wilton CT NWHNCT02X5X  920      
203-542 A Greenwich CT WHPLNYWPX3X  132      
203-542 3 Greenwich CT WHPLNYWPX3X  132      
203-564 A Stamford CT NWHNCT02X5X  920      
203-564 1 Stamford CT NWHNCT02X5X  920      
203-564 5 Stamford CT NWHNCT02X5X  920      
203-564 8 Stamford CT NWHNCT02X5X  920   2009-06-14   
203-571 A Westport CT NWHNCT02X5X  920      
203-571 5 Westport CT NWHNCT02X5X  920      
203-626 A Wallingford CT NWHNCT02X5X  920      
203-626 3 Wallingford CT NWHNCT02X5X  920      
203-673 A Bridgeport CT NWHNCT02X5X  920      
203-673 0 Bridgeport CT NWHNCT02X5X  920      
203-689 A Guilford CT NWHNCT02X5X  920      
203-689 9 Guilford CT NWHNCT02X5X  920      
203-701 A Milford CT NWHNCT02X5X  920      
203-701 3 Milford CT NWHNCT02X5X  920      
203-822 A Norwalk CT NWHNCT02X5X  920      
203-822 9 Norwalk CT NWHNCT02X5X  920      
203-868 A New Haven CT NWHNCT02X5X  920      
203-868 3 New Haven CT NWHNCT02X5X  920      
203-875 A Darien CT NWHNCT02X5X  920      
203-875 9 Darien CT NWHNCT02X5X  920      
205-315 A Eutaw AL BRHMALMTYWX  476      
205-315 2 Eutaw AL BRHMALMTYWX  476      
205-354 A Birmingham AL BRHMALMTYWX  476      
205-354 0 Birmingham AL BRHMALMTYWX  476      
205-390 5 Graysville AL BRHMALMTYWX  476   2010-08-16   
205-861 A Tuscaloosa AL BRHMALMTYWX  476      
205-861 1 Tuscaloosa AL BRHMALMTYWX  476      
205-947 A Carbon Hill AL BRHMALMTYWX  476      
205-947 9 Carbon Hill AL BRHMALMTYWX  476   2020-06-08   
205-948 A Birmingham AL BRHMALMTYWX  476      
205-948 0 Birmingham AL BRHMALMTYWX  476      
205-948 1 Birmingham AL BRHMALMTYWX  476      
205-948 2 Birmingham AL BRHMALMTYWX  476      
205-948 9 Birmingham AL BRHMALMTYWX  476      
206-759 A Bainbridge Island WA STTLWA06XMX  674      
206-759 9 Bainbridge Island WA STTLWA06XMX  674   2021-12-17   
207-218 A Belfast ME PTLDMEFOX9Y  120      
207-218 9 Belfast ME PTLDMEFOX9Y  120   2002-11-15   
207-556 A Westbrook ME PTLDMEFO17Z  120      
207-556 0 Westbrook ME PTLDMEFO17Z  120   2006-06-25   
207-556 1 Westbrook ME PTLDMEFO17Z  120   2006-06-25   
207-556 2 Westbrook ME PTLDMEFO17Z  120   2006-06-25   
207-556 3 Westbrook ME PTLDMEFO17Z  120   2006-06-25   
207-556 4 Westbrook ME PTLDMEFO17Z  120   2006-06-25   
207-556 5 Westbrook ME PTLDMEFO17Z  120   2006-06-25   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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