Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: SNCRCA11DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
650-413 A San Carlos-Belmont CA 9740 PACIFIC BELL 722      
650-486 A San Carlos-Belmont CA 9740 PACIFIC BELL 722      
650-506 A San Carlos-Belmont CA 9740 PACIFIC BELL 722      
650-508 A San Carlos-Belmont CA 9740 PACIFIC BELL 722      
650-551 A San Carlos-Belmont CA 9740 PACIFIC BELL 722      
650-591 A San Carlos-Belmont CA 9740 PACIFIC BELL 722      
650-592 A San Carlos-Belmont CA 9740 PACIFIC BELL 722      
650-593 A San Carlos-Belmont CA 9740 PACIFIC BELL 722      
650-594 A San Carlos-Belmont CA 9740 PACIFIC BELL 722      
650-595 A San Carlos-Belmont CA 9740 PACIFIC BELL 722      
650-596 A San Carlos-Belmont CA 9740 PACIFIC BELL 722      
650-598 A San Carlos-Belmont CA 9740 PACIFIC BELL 722      
650-607 A San Carlos-Belmont CA 9740 PACIFIC BELL 722      
650-610 A San Carlos-Belmont CA 9740 PACIFIC BELL 722      
650-620 A San Carlos-Belmont CA 9740 PACIFIC BELL 722      
650-622 A San Carlos-Belmont CA 9740 PACIFIC BELL 722      
650-631 A San Carlos-Belmont CA 9740 PACIFIC BELL 722      
650-632 A San Carlos-Belmont CA 9740 PACIFIC BELL 722      
650-633 A San Carlos-Belmont CA 9740 PACIFIC BELL 722      
650-637 A San Carlos-Belmont CA 9740 PACIFIC BELL 722      
650-654 A San Carlos-Belmont CA 9740 PACIFIC BELL 722      
650-802 A San Carlos-Belmont CA 9740 PACIFIC BELL 722      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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