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: 669 [Rate centres in NPA 669] [Dial plan for NPA 669]

NXX: 255

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
669-255 A San Jose: South DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
669-255 0 San Jose: South DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2015-08-31   
669-255 1 San Jose: South DA CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2015-10-10   
669-255 2 San Jose: South DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2015-08-17   
669-255 3 San Jose: South DA CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2015-10-10   
669-255 4 San Jose: South DA CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2016-07-17   
669-255 5 San Jose: South DA CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2016-05-12   
669-255 6 San Jose: South DA CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2016-06-02   
669-255 7 San Jose: South DA CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2015-09-16   
669-255 8 San Jose: South DA CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2015-09-16   
669-255 9 San Jose: South DA CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2015-09-04   

Last updated: Tue, 15 Jul 2025 18:46:49 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.