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.

San Diego: San Diego DA, CA

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
619-510 8 SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2018-11-01   
619-510 9 SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2018-11-01   
619-514 A ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732      
619-514 0 SNDGCA02XSZ  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 732   2017-01-27   
619-514 1 SNDGCA02XSZ  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 732   2017-01-27   
619-514 2 SNDGCA02XSZ  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 732   2017-01-27   
619-514 3 SNDGCA02XSZ  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 732   2017-01-27   
619-514 4 SNDGCA02XSZ  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 732   2017-01-27   
619-514 5 ESCNCAKY2MD  5562 METROPCS, INC. 732   2017-03-03   
619-514 6 ESCNCAKY2MD  5562 METROPCS, INC. 732   2017-03-03   
619-514 7 SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2018-03-30   
619-514 8 SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2018-04-16   
619-514 9 ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732   2017-01-26   
619-515 A SNDGCA01DS0  9740 PACIFIC BELL 732      
619-516 A SNDGCA06DS0  9740 PACIFIC BELL 732      
619-516 0 SNDGCA06DS0  9740 PACIFIC BELL 732      
619-516 1 SNDGCA06DS0  9740 PACIFIC BELL 732      
619-516 2 SNDGCA06DS0  9740 PACIFIC BELL 732      
619-516 3 SNDGCA06DS0  9740 PACIFIC BELL 732      
619-516 4 SNDGCA06DS0  9740 PACIFIC BELL 732      
619-516 5 SNDGCA06DS0  9740 PACIFIC BELL 732      
619-516 6 SNDGCA06DS0  9740 PACIFIC BELL 732      
619-516 7 SNDGCA06DS0  9740 PACIFIC BELL 732      
619-516 8 SNDGCA0201Z  829J PAETEC ITEL, LLC 732   2009-03-30   
619-516 9 SNDGCA06DS0  9740 PACIFIC BELL 732      
619-517 A SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732      
619-518 A SNDGCA51CM3  6010 NEW CINGULAR WIRELESS PCS, LLC 732      
619-520 A ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732      
619-520 0 ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732      
619-520 1 ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732      
619-520 2 ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732      
619-520 3 ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732      
619-520 4 ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732      
619-520 5 ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732      
619-520 6 ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732      
619-520 7 ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732      
619-520 8 ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732      
619-520 9 ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732      
619-521 A SNDGCA06DS0  9740 PACIFIC BELL 732      
619-523 A SNDGCA14RPA  9740 PACIFIC BELL 732      
619-524 A SNDGCA14RPA  9740 PACIFIC BELL 732      
619-525 A SNDGCA01DS0  9740 PACIFIC BELL 732      
619-526 A SNDGCA0250Z  6630 SPOK, INC. 732   2024-02-13   
619-527 A SNDGCA12RPA  9740 PACIFIC BELL 732      
619-528 A SNDGCA06DS0  9740 PACIFIC BELL 732      
619-529 A SNDGCA0250Z  6630 SPOK, INC. 732   2024-02-13   
619-530 A ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732      
619-530 0 SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2017-06-09   
619-530 1 ESCNCAKY2MD  5562 METROPCS, INC. 732   2017-08-12   
619-530 2 ESCNCAKY2MD  5562 METROPCS, INC. 732   2017-08-12   

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Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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