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: 8826 LEVEL 3 COMMUNICATIONS, 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 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
760-527 A Julian CA SNDACAGLDS2  732      
760-527 0 Julian CA   732   2005-02-19   
760-527 4 Julian CA   732      
760-530 4 Victorville: Adelanto DA CA   730   2003-03-22   
760-530 6 Victorville: Adelanto DA CA   730   2005-02-04   
760-531 4 Weldon CA   730   2005-07-30   
760-536 4 Vista CA   732   2005-07-01   
760-536 5 Vista CA   732   2005-07-01   
760-536 6 Vista CA   732   2005-07-01   
760-536 8 Vista CA   732   2005-07-01   
760-537 A Palm Springs CA PLSPCAXGXTY  973   2024-12-26   
760-537 0 Palm Springs CA   973   2008-08-22   
760-537 3 Palm Springs CA   973   2013-05-25   
760-537 4 Palm Springs CA   973   2012-12-03   
760-537 5 Palm Springs CA   973   2013-05-25   
760-538 0 Salton CA   973      
760-538 3 Salton CA   973   2005-07-30   
760-539 1 San Marcos CA   732      
760-539 4 San Marcos CA   732      
760-542 4 Vista CA   732      
760-544 A Blythe CA LSANCA54DS7  730      
760-544 6 Blythe CA   730   2011-12-05   
760-545 4 Imperial CA   732   2005-03-21   
760-547 7 Oceanside: Oceanside DA CA   732   2006-09-18   
760-553 A Victorville: Victorville DA CA LSANCA54DS7  730      
760-553 9 Victorville: Victorville DA CA   730      
760-561 A Victorville: Adelanto DA CA   730      
760-561 5 Victorville: Adelanto DA CA   730   2005-09-22   
760-563 A Wrightwood: Phelan DA CA   730   2025-04-07   
760-563 0 Wrightwood: Phelan DA CA   730   2012-12-07   
760-563 5 Wrightwood: Phelan DA CA   730   2005-04-15   
760-565 2 Palm Desert CA   973   2010-12-19   
760-565 3 Palm Desert CA   973   2010-07-04   
760-565 5 Palm Desert CA   973   2010-11-22   
760-582 4 Bishop CA   730   2011-04-04   
760-585 4 Oceanside: Carlsbad DA CA   732   2011-07-10   
760-585 9 Oceanside: Carlsbad DA CA   732   2008-05-19   
760-592 0 El Centro CA   732   2008-06-02   
760-594 9 Escondido CA   732   2014-05-04   
760-600 5 Indio CA   973   2010-05-13   
760-600 8 Indio CA   973   2010-07-04   
760-600 9 Indio CA   973   2010-07-04   
760-609 0 Indio CA   973   2010-10-01   
760-609 4 Indio CA   973   2010-12-19   
760-610 0 Palm Desert CA   973   2007-05-21   
760-610 6 Palm Desert CA   973   2008-07-01   
760-615 5 Pauma Valley CA   732   2006-11-05   
760-616 2 Bridgeport CA   730   2013-06-21   
760-618 0 Calexico CA   732   2008-05-08   
760-621 A San Marcos CA SNDACAGLDS2  732      

<< 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 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 >>

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.