Local Calling Guide

Area code/prefix search

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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
630-635 1 Roselle IL RLMDILAGDS2  358      
630-635 4 Roselle IL RLMDILAGDS2  358      
630-635 9 Roselle IL RLMDILAGDS2  358      
631-387 8 Commack NY BRWDNYBW6KD  132   2001-11-19   
631-404 A Brentwood NY BRWDNYBW6KD  132      
631-404 1 Brentwood NY BRWDNYBW6KD  132      
631-404 3 Brentwood NY BRWDNYBW6KD  132      
631-404 4 Brentwood NY BRWDNYBW6KD  132      
631-812 6 Huntington NY BRWDNYBW6KD  132   2009-04-24   
631-881 A Central Islip NY BRWDNYBW6KD  132      
631-881 6 Central Islip NY BRWDNYBW6KD  132      
631-923 A Huntington NY BRWDNYBW6KD  132      
631-923 9 Huntington NY BRWDNYBW6KD  132      
631-927 A Farmingdale NY GRCYNYGC6KD  132      
631-927 1 Farmingdale NY GRCYNYGC6KD  132      
631-927 3 Farmingdale NY GRCYNYGC6KD  132      
631-927 5 Farmingdale NY GRCYNYGC6KD  132      
631-927 6 Farmingdale NY GRCYNYGC6KD  132      
631-927 8 Farmingdale NY GRCYNYGC6KD  132      
631-927 9 Farmingdale NY GRCYNYGC6KD  132      
636-263 A Harvester MCA4 MO STLSMO09DS1  520      
636-263 2 Harvester MCA4 MO STLSMO09DS1  520      
636-473 A Antonia MO   520   2025-09-19   
636-473 9 Antonia MO   520   2025-09-19   
636-628 4 Manchester MO CRVCMOAT3MD  520   2003-01-09   
650-260 A Redwood City CA SNFCCA01DS5  722      
650-260 9 Redwood City CA SNFCCA01DS5  722      
650-264 A San Carlos-Belmont CA SNFCCA01DS5  722      
650-264 1 San Carlos-Belmont CA SNFCCA01DS5  722      
650-265 A Mountain View CA SNFCCA01DS5  722      
650-265 3 Mountain View CA SNFCCA01DS5  722      
650-265 5 Mountain View CA SNFCCA01DS5  722      
650-386 7 Mountain View CA SNFCCA01DS5  722   2012-06-08   
650-449 5 San Francisco: Juniper DA CA SNFCCA01DS5  722   2002-07-22   
650-452 A South San Francisco CA SNFCCA01DS5  722      
650-452 1 South San Francisco CA SNFCCA01DS5  722      
650-690 A Palo Alto CA SNFCCA01DS5  722      
650-690 9 Palo Alto CA SNFCCA01DS5  722      
650-918 A San Mateo CA SNFCCA01DS5  722      
650-918 3 San Mateo CA SNFCCA01DS5  722      
651-367 A Twin Cities MN GLVYMNORVMD  628      
651-367 0 Twin Cities MN GLVYMNORVMD  628      
651-367 1 Twin Cities MN GLVYMNORVMD  628      
651-367 2 Twin Cities MN GLVYMNORVMD  628      
651-367 3 Twin Cities MN GLVYMNORVMD  628      
651-367 5 Twin Cities MN GLVYMNORVMD  628      
651-367 6 Twin Cities MN GLVYMNORVMD  628      
651-367 7 Twin Cities MN GLVYMNORVMD  628      
651-367 8 Twin Cities MN GLVYMNORVMD  628      
651-397 A North Branch MN GLVYMNORVMD  628      

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Last updated: Sun, 17 May 2026 03:26:51 UTC

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