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.

OCN: 373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
530-584 3 North Tahoe: Tahoe City DA CA   726   2013-04-27   
530-593 9 North Yuba CA   726   2021-05-30   
530-600 9 South Tahoe CA   726   2021-05-30   
530-607 9 Wheatland CA   726   2021-04-24   
530-609 7 Alleghany CA   726   2022-06-10   
530-615 5 Grass Valley: Main DA CA   726   2013-03-28   
530-648 9 Grass Valley: Main DA CA   726   2016-09-16   
530-649 1 Live Oak CA   726   2021-07-11   
530-649 9 Live Oak CA   726   2021-11-20   
530-652 7 Grass Valley: South DA CA   726   2013-04-27   
530-653 8 Auburn: North DA CA   726   2013-03-28   
530-653 9 Auburn: North DA CA   726   2013-03-28   
530-655 0 Nicolaus CA   726   2021-11-21   
530-656 3 Nicolaus CA   726   2013-04-07   
530-656 4 Nicolaus CA   726   2013-04-07   
530-659 9 South Tahoe CA   726   2024-09-21   
530-663 0 Placerville: South DA CA   726      
530-663 1 Placerville: South DA CA   726   2021-06-12   
530-665 2 Woodland CA   726   2004-12-18   
530-689 A Corning CA CHICCACWIMD  724      
530-692 4 North Yuba CA   726   2013-04-27   
530-699 8 Dunnigan CA   726   2021-05-29   
530-719 3 Placerville: South DA CA   726   2013-03-28   
530-728 9 Grass Valley: South DA CA   726   2021-05-29   
530-738 0 Robbins CA   726   2023-12-15   
530-738 7 Robbins CA   726   2013-03-28   
530-760 4 Davis CA   726   2013-03-28   
530-786 7 Auburn: Main DA CA   726   2016-10-07   
530-787 9 Esparto CA   726   2020-03-09   
530-792 6 Davis CA   726   2020-06-18   
530-794 4 Winters CA   726   2024-10-31   
530-794 5 Winters CA   726   2018-07-13   
530-797 7 Gridley CA   726   2013-04-27   
530-799 5 Marysville CA   726   2022-06-19   
530-805 A Orland CA CHICCACWIMD  724      
530-805 1 Orland CA   724   2016-04-07   
530-807 9 North Tahoe: Tahoe City DA CA   726   2020-11-07   
530-815 A Chico CA CHICCACWIMD  724      
530-815 0 Chico CA   724   2014-12-04   
530-816 3 Chester CA   724   2010-04-12   
530-847 6 Alta CA   726   2013-03-28   
530-847 9 Alta CA   726   2022-06-10   
530-862 9 Downieville CA   726   2018-12-09   
530-866 0 Colfax: Colfax DA CA   726   2020-09-26   
530-887 4 Auburn: Main DA CA   726   2020-09-22   
530-904 8 Georgetown CA   726   2025-05-12   
530-920 4 Grass Valley: Main DA CA   726   2024-11-02   
530-939 A North San Juan CA SCRMCA01X7Z  726      
530-939 9 North San Juan CA   726   2023-06-22   
530-948 5 Meridian CA   726   2013-04-07   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 >>

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.