Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 506J TWILIO INTERNATIONAL, INC.

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
650-681 2 Palo Alto CA SNFCCAMKX5Y  722      
650-730 2 San Carlos-Belmont CA SNFCCAMKX5Y  722   2003-10-12   
650-835 1 South San Francisco CA SNFCCAMKX5Y  722      
650-885 4 Palo Alto CA SNFCCAMKX5Y  722   2017-09-01   
659-895 A Birmingham AL BRHMALMTYCX  476      
659-895 8 Birmingham AL BRHMALMTYCX  476   2020-11-14   
661-560 A Wasco CA BKFDCA11XEX  734      
661-560 5 Wasco CA BKFDCA11XEX  734   2022-04-01   
667-895 A Baltimore MD BLTMMDCHXMX  238      
667-895 8 Baltimore MD BLTMMDCHXMX  238   2020-12-13   
667-897 A Chesapeake City MD SLBRMDSBX2Y  242      
667-897 8 Chesapeake City MD SLBRMDSBX2Y  242   2022-05-29   
680-895 A Syracuse NY SYRCNYSUXNX  136      
680-895 8 Syracuse NY SYRCNYSUXNX  136   2020-10-16   
681-895 A Charleston Zone 1 WV CHTNWVLEQMD  254      
681-895 8 Charleston Zone 1 WV CHTNWVLEQMD  254   2021-04-23   
681-896 A Clarksburg WV CLBGWVMAXMX  256      
681-896 8 Clarksburg WV CLBGWVMAXMX  256   2022-09-11   
682-439 A Grapevine TX IRNGTXXBXRY  552   2024-12-16   
682-439 4 Grapevine TX IRNGTXXBXRY  552   2024-12-17   
689-334 A St Cloud FL WNPKFLXEXAY  45808   2024-12-13   
689-334 3 St Cloud FL WNPKFLXEXAY  45808   2024-12-14   
689-808 A Orlando FL ORLDFL60X0Y  45806      
689-808 8 Orlando FL ORLDFL60X0Y  45806   2021-04-30   
701-319 A Bismarck ND BSMRNDBCXKX  638      
701-319 4 Bismarck ND BSMRNDBCXKX  638   2022-07-13   
701-707 A Fargo ND FARGNDBCX4Y  636      
701-707 7 Fargo ND FARGNDBCX4Y  636   2020-12-21   
706-973 5 Dahlonega GA ATLNGABU11Z  438   2021-05-06   
707-222 3 Miranda CA SNFCCAMKX5Y  722   2020-10-01   
712-895 A Sioux City IA SXCYIADTX2X  630      
712-895 8 Sioux City IA SXCYIADTX2X  630   2022-02-03   
714-497 2 Orange CA LSANCA03JMD  730      
714-500 7 Huntington Beach CA LNBHCAXPX9Y  730   2005-02-05   
714-598 2 Anaheim CA LSANCA03JMD  730      
714-604 2 Santa Ana CA LSANCA03JMD  730      
714-677 8 Westminster CA LNBHCAXPX9Y  730   2005-02-05   
714-786 1 Garden Grove CA LSANCA03JMD  730      
715-626 A Loyal WI WAUSWIXAX5X  350   2025-01-17   
715-626 4 Loyal WI WAUSWIXAX5X  350   2025-01-18   
715-995 A Augusta WI EUCLWI01X3Y  352      
715-995 7 Augusta WI EUCLWI01X3Y  352   2022-06-06   
716-617 A Buffalo NY BFLONYFRXXX  140      
716-617 6 Buffalo NY BFLONYFRXXX  140   2020-10-16   
717-204 A Newport PA   226      
717-204 9 Newport PA   226   2025-08-30   
719-895 A Colorado Springs-Main CO CLSPCOMAX5Z  658      
719-895 8 Colorado Springs-Main CO CLSPCOMAX5Z  658   2020-12-19   
720-760 A Denver CO DNVRCOMA40Z  656      
720-760 7 Denver CO DNVRCOMA40Z  656   2020-12-13   

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Last updated: Sat, 02 May 2026 12:20:53 UTC

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