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: 850

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
650-850 A Woodside CA HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
650-850 0 Woodside CA HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
650-850 1 Woodside CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-11-10   
650-850 2 Woodside CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2015-07-10   
650-850 3 Woodside CA SNFCCAMKX1X  9262 UTILITY TELECOM GROUP, LLC - CA 722   2006-06-14   
650-850 4 Woodside CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2015-03-18   
650-850 5 Woodside CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2020-08-29   
650-850 6 Woodside CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2014-10-11   
650-850 7 Woodside CA OKLDCAMP1MD  4733 PAETEC COMMUNICATIONS, INC. - CA 722   2015-06-22   
650-850 8 Woodside CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2016-12-08   
650-850 9 Woodside CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2016-11-07   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.