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.
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Switch: SNDGCA023KD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
619-903 A San Diego: San Diego DA CA 9748 AMERICAN MESSAGING SERVICES, LLC 732      
760-210 A Vista CA 9748 AMERICAN MESSAGING SERVICES, LLC 732      
760-286 A Encinitas CA 9748 AMERICAN MESSAGING SERVICES, LLC 732      
760-467 A Escondido CA 9748 AMERICAN MESSAGING SERVICES, LLC 732      
858-225 A San Diego: Mira Mesa DA CA 7379 MATRIX TELECOM, LLC. S/I/I TNCI - CA 732      
858-428 A Rancho Penasquitos CA 7379 MATRIX TELECOM, LLC. S/I/I TNCI - CA 732      
858-630 A San Diego: Mira Mesa DA CA 7379 MATRIX TELECOM, LLC. S/I/I TNCI - CA 732      
858-683 A Rancho Bernardo CA 7379 MATRIX TELECOM, LLC. S/I/I TNCI - CA 732      
858-769 A San Diego: Linda Vista DA CA 7379 MATRIX TELECOM, LLC. S/I/I TNCI - CA 732      
858-815 A Rancho Bernardo CA 7379 MATRIX TELECOM, LLC. S/I/I TNCI - CA 732      
858-856 A San Diego: Linda Vista DA CA 6483 AMERICAN MESSAGING SERVICES, LLC 732      
858-923 A Rancho Santa Fe CA 7379 MATRIX TELECOM, LLC. S/I/I TNCI - CA 732      
858-947 A Del Mar CA 7379 MATRIX TELECOM, LLC. S/I/I TNCI - CA 732      
858-956 A Poway CA 7379 MATRIX TELECOM, LLC. S/I/I TNCI - CA 732      

Last updated: Thu, 04 Aug 2022 23:14:42 UTC

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