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: 484

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
650-484 A San Mateo CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-484 0 San Mateo CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722      
650-484 1 San Mateo CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722      
650-484 2 San Mateo CA SNFCCAMM8MD  973E RACE TELECOMMUNICATIONS, INC. - CA 722      
650-484 3 San Mateo CA HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
650-484 4 San Mateo CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-484 5 San Mateo CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-484 6 San Mateo CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-484 7 San Mateo CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-484 8 San Mateo CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-484 9 San Mateo CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.