Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 650 [Rate centres in NPA 650] [Dial plan for NPA 650]

NXX: 212

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
650-212 A San Mateo CA SNMTCA11DS0  9740 PACIFIC BELL 722      
650-212 0 San Mateo CA SNMTCA11DS0  9740 PACIFIC BELL 722      
650-212 1 San Mateo CA SNMTCA11DS0  9740 PACIFIC BELL 722      
650-212 2 San Mateo CA SNMTCA11DS0  9740 PACIFIC BELL 722      
650-212 3 San Mateo CA SNMTCA11DS0  9740 PACIFIC BELL 722      
650-212 4 San Mateo CA SNMTCA11DS0  9740 PACIFIC BELL 722      
650-212 5 San Mateo CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2012-10-18   
650-212 6 San Mateo CA SNFCCAMMDS7  258E YMAX COMMUNICATIONS CORP. - CA 722   2008-12-03   
650-212 7 San Mateo CA SNMTCA11DS0  9740 PACIFIC BELL 722      
650-212 8 San Mateo CA SNMTCA11DS0  9740 PACIFIC BELL 722      
650-212 9 San Mateo CA SNMTCA11DS0  9740 PACIFIC BELL 722      

Last updated: Sun, 07 Feb 2021 01:52:50 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.