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.

Oakland: Trinidad DA, CA

<< 1 2 3 4 5 6 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
510-707 5   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2016-05-31   
510-707 6   981E BANDWIDTH.COM CLEC, LLC - CA 722   2016-08-22   
510-707 7   6529 T-MOBILE USA, INC. 722   2016-05-30   
510-707 8   6529 T-MOBILE USA, INC. 722   2016-05-30   
510-707 9   6529 T-MOBILE USA, INC. 722   2016-05-30   
510-729 A OKLDCA12DS1  9740 PACIFIC BELL 722      
510-729 0   9740 PACIFIC BELL 722      
510-729 1   318J COMCAST IP PHONE, LLC 722   2020-10-14   
510-729 2   318J COMCAST IP PHONE, LLC 722   2020-10-14   
510-729 3   6529 T-MOBILE USA, INC. 722   2020-09-18   
510-729 4   9740 PACIFIC BELL 722      
510-729 5   318J COMCAST IP PHONE, LLC 722   2020-10-14   
510-729 6   9740 PACIFIC BELL 722      
510-729 7   9740 PACIFIC BELL 722      
510-729 8   9740 PACIFIC BELL 722      
510-729 9   9740 PACIFIC BELL 722      
510-746 A SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
510-746 0   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
510-746 1   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
510-746 2   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
510-746 3   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
510-746 4   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
510-746 5   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
510-746 6   5562 METROPCS, INC. 722   2011-02-28   
510-746 7   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
510-746 8   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2011-10-06   
510-746 9   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
510-753 A OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
510-753 0   6529 T-MOBILE USA, INC. 722   2015-04-20   
510-753 1   6529 T-MOBILE USA, INC. 722   2015-04-20   
510-753 2   5562 METROPCS, INC. 722   2015-03-27   
510-753 3   5562 METROPCS, INC. 722   2015-03-27   
510-753 4   6529 T-MOBILE USA, INC. 722   2015-03-09   
510-753 5   6529 T-MOBILE USA, INC. 722   2015-03-09   
510-753 6   6529 T-MOBILE USA, INC. 722   2015-03-09   
510-753 7   6529 T-MOBILE USA, INC. 722   2015-01-29   
510-753 8   5562 METROPCS, INC. 722   2015-01-09   
510-753 9   6529 T-MOBILE USA, INC. 722   2015-01-09   
510-756 A OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
510-756 0   649C ONVOY, LLC - CA 722   2016-01-13   
510-756 1   649C ONVOY, LLC - CA 722   2016-01-13   
510-756 2   649C ONVOY, LLC - CA 722   2016-01-26   
510-756 3   649C ONVOY, LLC - CA 722   2016-02-25   
510-756 4   649C ONVOY, LLC - CA 722   2016-02-25   
510-756 5   649C ONVOY, LLC - CA 722   2016-02-16   
510-756 6   318J COMCAST IP PHONE, LLC 722   2015-11-30   
510-756 7   5562 METROPCS, INC. 722   2015-10-24   
510-756 8   6529 T-MOBILE USA, INC. 722   2015-10-24   
510-756 9   6529 T-MOBILE USA, INC. 722   2015-10-24   
510-777 A OKLDCA12DS0  9740 PACIFIC BELL 722      
510-777 0   9740 PACIFIC BELL 722      
510-777 1   9740 PACIFIC BELL 722      
510-777 2   9740 PACIFIC BELL 722      
510-777 3   9740 PACIFIC BELL 722      
510-777 4   9740 PACIFIC BELL 722      
510-777 5   9740 PACIFIC BELL 722      
510-777 6   649C ONVOY, LLC - CA 722   2021-01-03   
510-777 7   9740 PACIFIC BELL 722      
510-777 8   9740 PACIFIC BELL 722      
510-777 9   9740 PACIFIC BELL 722      
510-798 A OKLECAZV1MD  5562 METROPCS, INC. 722      
510-798 0   5562 METROPCS, INC. 722      
510-798 1   5562 METROPCS, INC. 722      
510-798 2   5562 METROPCS, INC. 722      
510-798 3   5562 METROPCS, INC. 722      
510-798 4   5562 METROPCS, INC. 722      
510-798 5   5562 METROPCS, INC. 722      
510-798 6   5562 METROPCS, INC. 722      
510-798 7   5562 METROPCS, INC. 722      
510-798 8   5562 METROPCS, INC. 722      
510-798 9   5562 METROPCS, INC. 722      
510-820 A OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
510-820 0   5562 METROPCS, INC. 722   2015-09-17   
510-820 1   5562 METROPCS, INC. 722   2015-09-17   
510-820 2   649C ONVOY, LLC - CA 722   2016-05-10   
510-820 3   6529 T-MOBILE USA, INC. 722   2015-08-31   
510-820 4   6529 T-MOBILE USA, INC. 722   2015-08-31   
510-820 5   6529 T-MOBILE USA, INC. 722   2015-08-31   
510-820 6   6529 T-MOBILE USA, INC. 722   2015-08-31   
510-820 7   6529 T-MOBILE USA, INC. 722   2015-08-31   
510-820 8   6529 T-MOBILE USA, INC. 722   2015-08-31   
510-820 9   6529 T-MOBILE USA, INC. 722   2015-08-31   
510-822 A OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
510-822 0   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2017-01-09   
510-822 1   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2017-01-09   
510-822 2   649C ONVOY, LLC - CA 722   2017-06-17   
510-822 3   073H TELNYX LLC 722   2017-06-05   
510-822 4   5562 METROPCS, INC. 722   2017-07-13   
510-822 5   318J COMCAST IP PHONE, LLC 722   2017-10-02   
510-822 6   649C ONVOY, LLC - CA 722   2017-11-17   
510-822 7   649C ONVOY, LLC - CA 722   2017-11-17   
510-822 8   649C ONVOY, LLC - CA 722   2017-11-17   
510-822 9   6529 T-MOBILE USA, INC. 722   2016-12-18   
510-850 A OKLECAZV1MD  6529 T-MOBILE USA, INC. 722      
510-850 0   5562 METROPCS, INC. 722   2015-06-05   
510-850 1   5562 METROPCS, INC. 722   2015-06-05   
510-850 2   5562 METROPCS, INC. 722   2015-06-05   
510-850 3   5562 METROPCS, INC. 722   2015-06-05   
510-850 4   6529 T-MOBILE USA, INC. 722   2015-07-17   
510-850 5   516C AT&T CORP. 722   2015-06-27   

<< 1 2 3 4 5 6 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.