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.
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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
860-431 9 Simsbury CT   920      
860-438 A New Britain CT NWHNCT02X5X  920      
860-438 3 New Britain CT   920      
860-438 4 New Britain CT   920      
860-474 A Manchester CT NWHNCT02X5X  920      
860-474 9 Manchester CT   920   2003-08-29   
860-502 A Hartford CT NWHNCT02X5X  920      
860-502 1 Hartford CT   920      
860-502 6 Hartford CT   920      
860-703 A Farmington CT NWHNCT02X5X  920      
860-703 6 Farmington CT   920      
860-847 A Windsor CT NWHNCT02X5X  920      
860-847 5 Windsor CT   920      
860-894 A Middletown CT NWHNCT02X5X  920      
860-894 3 Middletown CT   920      
860-968 A Glastonbury CT NWHNCT02X5X  920      
860-968 9 Glastonbury CT   920      
862-369 A Nutley NJ RCPKNJ02XGY  224      
862-369 9 Nutley NJ   224   2021-07-06   
862-432 4 Succasunna NJ   224   2003-01-08   
863-513 A Lakeland FL TAMPFLCOWMD  952      
863-513 1 Lakeland FL   952      
863-594 5 Winter Haven FL   952   2005-06-24   
863-734 5 Lake Wales FL   952   2007-05-28   
864-659 A Belton SC GNVLSCTLDMD  430      
864-659 9 Belton SC   430   2003-05-24   
864-798 A Clinton SC GNVLSCDT83Z  430      
864-798 9 Clinton SC   430   2022-08-31   
865-274 4 Knoxville TN   474   2003-10-06   
865-274 5 Knoxville TN   474   2003-10-06   
865-297 A Knoxville TN KNVLTNMAYGX  474      
865-297 0 Knoxville TN   474      
865-297 1 Knoxville TN   474      
865-297 9 Knoxville TN   474      
870-333 A Jonesboro AR JNBOARAT3MD  528      
870-333 9 Jonesboro AR   528      
872-262 A Chicago Zone 09-South Chicago IL CHCGILCLX4Y  358      
872-262 9 Chicago Zone 09-South Chicago IL   358   2020-06-08   
872-329 A Chicago Zone 10-Beverly IL CHCGILCLX0Y  358      
872-329 9 Chicago Zone 10-Beverly IL   358   2023-04-24   
901-389 A Arlington TN MMPHTNMAX6Z  468      
901-389 9 Arlington TN   468   2003-09-11   
901-444 7 Arlington TN   468   2012-09-27   
903-283 A Tyler TX LGVWTXTLX1X  554      
903-283 9 Tyler TX   554      
903-544 A Longview TX LGVWTXTLX2X  554      
903-544 9 Longview TX   554      
903-699 A Longview TX LGVWTXTLX4X  554      
903-699 9 Longview TX   554      
904-625 A Jacksonville FL JCVLFLCLDS3  45204      

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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