Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 818 [Rate centres in NPA 818] [Dial plan for NPA 818]

NXX: 583

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
818-583 A Pasadena: La Cañada DA CA LSANCA03DS7  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
818-583 0 Pasadena: La Cañada DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2013-05-03   
818-583 1 Pasadena: La Cañada DA CA   829J PAETEC ITEL, LLC 730   2002-02-11   
818-583 2 Pasadena: La Cañada DA CA   515J IP HORIZON LLC 730   2003-10-13   
818-583 3 Pasadena: La Cañada DA CA   515J IP HORIZON LLC 730   2003-10-13   
818-583 4 Pasadena: La Cañada DA CA IRVNCASM1MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 730   2006-03-27   
818-583 5 Pasadena: La Cañada DA CA LSANCARC80Z  9262 UTILITY TELECOM GROUP, LLC - CA 730   2006-06-20   
818-583 6 Pasadena: La Cañada DA CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-03-25   
818-583 7 Pasadena: La Cañada DA CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-02-19   
818-583 8 Pasadena: La Cañada DA CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2010-03-08   
818-583 9 Pasadena: La Cañada DA CA LSANCA03DS7  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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