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
404-348 A Atlanta GA ATLNGATLDS4  438      
404-348 1 Atlanta GA ATLNGATLDS4  438      
404-348 5 Atlanta GA ATLNGATLDS4  438      
404-348 9 Atlanta GA ATLNGATLDS4  438      
404-516 A Atlanta GA ATLNGATLDS6  438      
404-516 9 Atlanta GA ATLNGATLDS6  438      
404-704 A Atlanta GA ATLNGABU20Z  438      
404-704 1 Atlanta GA ATLNGABU20Z  438      
406-625 A Stevensville MT MSSLMTMAX0X  648   2024-02-23   
406-625 9 Stevensville MT MSSLMTMAX0X  648   2024-02-24   
406-815 A Red Lodge MT BLNGMTMAX5X  650      
406-815 9 Red Lodge MT BLNGMTMAX5X  650   2022-03-08   
406-997 A Fromberg MT BLNGMTWEMMD  650   2024-03-09   
406-997 9 Fromberg MT BLNGMTWEMMD  650   2024-03-09   
408-755 4 San Jose: West DA CA SNJSCA02DS3  722   2011-08-01   
408-916 A San Jose: West DA CA SNJSCA02DS3  722      
408-916 0 San Jose: West DA CA SNJSCA02DS3  722      
408-916 2 San Jose: West DA CA SNJSCA02DS3  722      
408-916 9 San Jose: West DA CA SNJSCA02DS3  722      
413-213 A Belchertown MA SPFDMABRXBX  126      
413-213 9 Belchertown MA SPFDMABRXBX  126   2003-12-07   
413-307 A Adams MA SPFDMAWOPMD  126      
413-307 9 Adams MA SPFDMAWOPMD  126   2012-08-20   
415-223 6 San Rafael CA SNFCCA01DS5  722   2002-10-27   
415-324 3 Sausalito CA SNFCCA01DS5  722   2003-02-04   
415-486 A San Francisco: Central DA CA SNFCCA01DS5  722      
415-486 0 San Francisco: Central DA CA SNFCCA01DS5  722      
415-486 1 San Francisco: Central DA CA SNFCCA01DS5  722      
415-486 3 San Francisco: Central DA CA SNFCCA01DS5  722      
415-486 4 San Francisco: Central DA CA SNFCCA01DS5  722      
415-486 5 San Francisco: Central DA CA SNFCCA01DS5  722      
415-486 6 San Francisco: Central DA CA SNFCCA01DS5  722      
415-486 7 San Francisco: Central DA CA SNFCCA01DS5  722      
415-486 8 San Francisco: Central DA CA SNFCCA01DS5  722      
415-486 9 San Francisco: Central DA CA SNFCCA01DS5  722      
415-692 A San Francisco: Central DA CA SNFCCA01DS5  722      
415-692 2 San Francisco: Central DA CA SNFCCA01DS5  722      
415-692 9 San Francisco: Central DA CA SNFCCA01DS5  722      
417-208 A Joplin MO SPFDMOTLXRY  522      
417-208 1 Joplin MO SPFDMOTLXRY  522      
417-480 A Ash Grove MO SPFDMOTLXRY  522      
417-480 9 Ash Grove MO SPFDMOTLXRY  522   2020-05-08   
417-576 A Springfield MO SPFDMOTLXRY  522      
417-576 9 Springfield MO SPFDMOTLXRY  522      
417-760 A Billings MO SPFDMOTLX0Z  522   2025-10-06   
417-760 9 Billings MO SPFDMOTLX0Z  522   2025-10-06   
423-298 A Chattanooga TN CHTGTNMATMD  472      
423-298 9 Chattanooga TN CHTGTNMATMD  472      
423-640 A Sneedville TN KNVLTNMAYGX  474      
423-640 9 Sneedville TN KNVLTNMAYGX  474   2020-06-08   

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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