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.

Montebello, 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 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
323-718 9   899D METROPCS NETWORKS, LLC 730   2006-04-16   
323-720 A LSANCA35DS1  9740 PACIFIC BELL 730      
323-721 A LSANCA35DS1  9740 PACIFIC BELL 730      
323-722 A LSANCA35DS0  9740 PACIFIC BELL 730      
323-724 A LSANCA35DS0  9740 PACIFIC BELL 730      
323-725 A LSANCA35DS1  9740 PACIFIC BELL 730      
323-726 A LSANCA35DS1  9740 PACIFIC BELL 730      
323-727 A LSANCA35DS1  9740 PACIFIC BELL 730      
323-728 A LSANCA35DS1  9740 PACIFIC BELL 730      
323-742 A ELMNCAFIGT1  6529 T-MOBILE USA, INC. 730      
323-742 0 ELMNCAFIGT1  6529 T-MOBILE USA, INC. 730   2006-07-10   
323-742 1 ELMNCAFIGT1  6529 T-MOBILE USA, INC. 730   2006-08-03   
323-742 2 ELMNCAFIGT1  6529 T-MOBILE USA, INC. 730   2006-09-02   
323-742 3 ELMNCAFIGT1  6529 T-MOBILE USA, INC. 730   2006-09-02   
323-742 4   899D METROPCS NETWORKS, LLC 730   2006-07-19   
323-742 5 ELMNCAFIGT1  899D METROPCS NETWORKS, LLC 730   2006-07-19   
323-742 6 ELMNCAFIGT1  899D METROPCS NETWORKS, LLC 730   2006-07-19   
323-742 7 ELMNCAFIGT1  899D METROPCS NETWORKS, LLC 730   2006-07-01   
323-742 8   899D METROPCS NETWORKS, LLC 730   2006-07-01   
323-742 9   899D METROPCS NETWORKS, LLC 730   2006-07-01   
323-765 A CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
323-765 0 LSANCARCD3S  649C ONVOY, LLC - CA 730   2019-03-24   
323-765 1 LSANCARCD3S  649C ONVOY, LLC - CA 730   2016-02-26   
323-765 2 SHOKCA02IMD  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2015-10-23   
323-765 3 LSANCARCD3S  649C ONVOY, LLC - CA 730   2016-02-26   
323-765 4 ELMNCAFIGT1  6529 T-MOBILE USA, INC. 730   2016-06-16   
323-765 5 ELMNCAFIGT1  6529 T-MOBILE USA, INC. 730   2016-06-16   
323-765 6 SHOKCA02IMD  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2016-04-04   
323-765 7 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2016-07-25   
323-765 8 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2016-07-25   
323-765 9 CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2015-08-16   
323-767 A LSANCA03DS3  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
323-767 0 LSANCARCD3S  649C ONVOY, LLC - CA 730   2005-09-29   
323-767 1 LSANCA03DS3  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
323-767 2 LSANCA03DS3  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
323-767 3 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2005-09-09   
323-767 4 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2005-09-09   
323-767 5 LSANCAJWJMD  516J TON80 COMMUNICATIONS, LLC 730   2022-04-19   
323-767 6 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2005-09-09   
323-767 7 ELMNCAFIGT1  6529 T-MOBILE USA, INC. 730   2005-11-27   
323-767 8 LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2006-06-12   
323-767 9 ELMNCAFIGT1  6529 T-MOBILE USA, INC. 730   2006-07-05   
323-787 A ELMNCAFIGT1  899D METROPCS NETWORKS, LLC 730      
323-787 0 ELMNCAFIGT1  899D METROPCS NETWORKS, LLC 730   2006-12-05   
323-787 1 ELMNCAFIGT1  899D METROPCS NETWORKS, LLC 730   2006-12-05   
323-787 2 ELMNCAFIGT1  899D METROPCS NETWORKS, LLC 730   2006-11-21   
323-787 3 ELMNCAFIGT1  899D METROPCS NETWORKS, LLC 730   2006-11-21   
323-787 4 ELMNCAFIGT1  899D METROPCS NETWORKS, LLC 730   2006-11-21   
323-787 5 ELMNCAFIGT1  899D METROPCS NETWORKS, LLC 730   2006-10-20   
323-787 6 ELMNCAFIGT1  899D METROPCS NETWORKS, LLC 730   2006-10-20   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.