Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 650 [Rate centres in NPA 650] [Dial plan for NPA 650]

NXX: 200

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
650-200 A San Mateo CA SNFCCAMKX5Y  506J TWILIO INTERNATIONAL, INC. 722      
650-200 0 San Mateo CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2009-11-09   
650-200 1 San Mateo CA   515J IP HORIZON LLC 722      
650-200 2 San Mateo CA   506J TWILIO INTERNATIONAL, INC. 722      
650-200 3 San Mateo CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2009-11-09   
650-200 4 San Mateo CA   515J IP HORIZON LLC 722      
650-200 5 San Mateo CA   6529 T-MOBILE USA, INC. 722   2004-08-02   
650-200 6 San Mateo CA   6529 T-MOBILE USA, INC. 722   2005-09-10   
650-200 7 San Mateo CA   6529 T-MOBILE USA, INC. 722   2004-11-28   
650-200 8 San Mateo CA   6529 T-MOBILE USA, INC. 722   2005-05-15   
650-200 9 San Mateo CA   6529 T-MOBILE USA, INC. 722   2005-05-15   

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

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