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: 820 [Rate centres in NPA 820] [Dial plan for NPA 820]

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
820-200 A Thousand Oaks CA   181J ADVANCED TELECOM SOLUTIONS, LLC 730   2018-08-09   
820-200 0 Thousand Oaks CA   181J ADVANCED TELECOM SOLUTIONS, LLC 730   2018-08-09   
820-200 9 Thousand Oaks CA   6529 T-MOBILE USA, INC. 730   2019-07-20   
820-201 A Oxnard CA   0051 SHELCOMM 730   2018-09-14   
820-222 A Camarillo CA   965H FRACTEL, LLC 730   2019-03-23   
820-222 0 Camarillo CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2019-09-16   
820-222 2 Camarillo CA   965H FRACTEL, LLC 730   2019-03-23   
820-222 7 Camarillo CA   965H FRACTEL, LLC 730   2019-03-23   
820-280 A Los Alamos CA   321J HD CARRIER LLC 740   2019-11-23   
820-280 9 Los Alamos CA   321J HD CARRIER LLC 740   2019-11-23   
820-300 A Guadalupe CA   649C ONVOY, LLC - CA 740   2019-03-01   
820-300 0 Guadalupe CA   649C ONVOY, LLC - CA 740   2019-03-01   
820-300 1 Guadalupe CA   649C ONVOY, LLC - CA 740   2019-03-01   
820-300 2 Guadalupe CA   649C ONVOY, LLC - CA 740   2019-05-10   
820-300 3 Guadalupe CA   965H FRACTEL, LLC 740   2019-06-12   
820-300 5 Guadalupe CA   649C ONVOY, LLC - CA 740   2019-09-15   
820-300 9 Guadalupe CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 740   2019-09-05   
820-333 A Thousand Oaks CA   965H FRACTEL, LLC 730   2019-03-21   
820-333 2 Thousand Oaks CA   649C ONVOY, LLC - CA 730   2019-09-09   
820-333 3 Thousand Oaks CA   965H FRACTEL, LLC 730   2019-03-21   
820-333 4 Thousand Oaks CA   649C ONVOY, LLC - CA 730   2019-09-09   
820-333 6 Thousand Oaks CA   7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730   2019-03-22   
820-333 7 Thousand Oaks CA   7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730   2019-04-13   
820-333 8 Thousand Oaks CA   7139 TELEPORT COMMUNICATIONS GROUP - LOS ANGELES 730   2019-04-13   
820-400 A Parkfield CA   649C ONVOY, LLC - CA 740   2019-03-01   
820-400 0 Parkfield CA   649C ONVOY, LLC - CA 740   2019-03-01   
820-400 1 Parkfield CA   649C ONVOY, LLC - CA 740   2019-03-01   
820-400 4 Parkfield CA   965H FRACTEL, LLC 740   2019-07-16   
820-444 A Newbury Park CA   965H FRACTEL, LLC 730   2019-03-26   
820-444 2 Newbury Park CA   965H FRACTEL, LLC 730   2019-03-26   
820-444 3 Newbury Park CA   965H FRACTEL, LLC 730   2019-03-26   
820-444 4 Newbury Park CA   965H FRACTEL, LLC 730   2019-03-26   
820-444 5 Newbury Park CA   965H FRACTEL, LLC 730   2019-03-26   
820-666 A San Luis Obispo CA   965H FRACTEL, LLC 740   2019-03-23   
820-666 6 San Luis Obispo CA   965H FRACTEL, LLC 740   2019-03-23   
820-777 A Santa Paula CA   965H FRACTEL, LLC 730   2019-03-21   
820-777 7 Santa Paula CA   965H FRACTEL, LLC 730   2019-03-21   
820-777 9 Santa Paula CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2019-06-08   
820-888 A Simi Valley CA   145J TERRA NOVA TELECOM INC. 730   2019-02-23   
820-888 0 Simi Valley CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2019-06-15   
820-888 1 Simi Valley CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2019-07-29   
820-888 2 Simi Valley CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2019-08-02   
820-888 8 Simi Valley CA   145J TERRA NOVA TELECOM INC. 730   2019-02-23   
820-888 9 Simi Valley CA   6529 T-MOBILE USA, INC. 730   2019-11-17   
820-999 A Oxnard CA   965H FRACTEL, LLC 730   2019-03-21   
820-999 9 Oxnard CA   965H FRACTEL, LLC 730   2019-03-21   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.