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: 544

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
669-544 A San Jose: North DA CA HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722      
669-544 0 San Jose: North DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2017-09-22   
669-544 1 San Jose: North DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2017-09-22   
669-544 2 San Jose: North DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2017-09-22   
669-544 3 San Jose: North DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2017-09-22   
669-544 4 San Jose: North DA CA HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722   2017-07-27   
669-544 5 San Jose: North DA CA HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722   2017-07-27   
669-544 6 San Jose: North DA CA HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722   2017-07-27   
669-544 7 San Jose: North DA CA HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722   2017-07-27   
669-544 8 San Jose: North DA CA HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722   2017-07-27   
669-544 9 San Jose: North DA CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2017-10-18   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.