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
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      
651-397 9 North Branch MN GLVYMNORVMD  628   2023-08-05   
661-341 A Lancaster CA SHOKCA024MD  730      
661-341 9 Lancaster CA SHOKCA024MD  730      
661-678 A Santa Clarita: Newhall-Castaic DA CA SHOKCA02DS2  730      
661-678 2 Santa Clarita: Newhall-Castaic DA CA SHOKCA02DS2  730      
661-678 4 Santa Clarita: Newhall-Castaic DA CA SHOKCA02DS2  730      
661-889 A Bakersfield: Main DA CA MOJVCA02DS2  734      
661-889 9 Bakersfield: Main DA CA MOJVCA02DS2  734      
662-426 A Como MS JCSNMSPSDS4  482      
662-426 9 Como MS JCSNMSPSDS4  482      
667-283 A Fork MD BLTMMDCHXAX  238      
667-283 9 Fork MD BLTMMDCHXAX  238   2020-08-24   
667-497 A Ocean City MD SLBRMDSBX8Y  242   2024-12-23   
667-497 9 Ocean City MD SLBRMDSBX8Y  242   2024-12-23   
667-498 A Arbutus MD BLTMMDCH57Z  238   2025-01-17   
667-498 9 Arbutus MD BLTMMDCH57Z  238   2025-01-17   
669-800 3 San Jose: West DA CA SNJSCA02DS3  722   2013-02-18   
678-792 1 Cartersville GA ATLNGATLXDX  438   2002-11-09   
680-327 A Hamilton NY   136   2025-09-25   
680-327 9 Hamilton NY   136   2025-09-25   
681-390 A Milton WV CHTNWVLEXAX  254      
681-390 9 Milton WV CHTNWVLEXAX  254   2022-06-15   
681-545 A Daybrook WV CLBGWVMAXXX  256   2024-10-11   
681-545 9 Daybrook WV CLBGWVMAXXX  256   2024-10-11   
681-546 A Dunlow WV CHTNWVLEX9Y  254   2024-10-11   
681-546 9 Dunlow WV CHTNWVLEX9Y  254   2024-10-11   
682-703 6 Fort Worth TX FTWOTXEDDS4  552   2014-05-05   

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

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