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.

NPA: 323 [Rate centres in NPA 323] [Dial plan for NPA 323]

NXX: 328

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
323-328 A Los Angeles: DA 11 CA ANHMCANG2MD  4733 PAETEC COMMUNICATIONS, INC. - CA 730      
323-328 0 Los Angeles: DA 11 CA LSANCAJWDS9  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730      
323-328 1 Los Angeles: DA 11 CA ANHMCANG2MD  4733 PAETEC COMMUNICATIONS, INC. - CA 730      
323-328 2 Los Angeles: DA 11 CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730      
323-328 3 Los Angeles: DA 11 CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730      
323-328 4 Los Angeles: DA 11 CA TRNECAGBGT3  899D METROPCS NETWORKS, LLC 730      
323-328 5 Los Angeles: DA 11 CA LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730      
323-328 6 Los Angeles: DA 11 CA CYCMCALLCM5  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
323-328 7 Los Angeles: DA 11 CA TRNECAGBGT3  6529 T-MOBILE USA, INC. 730      
323-328 8 Los Angeles: DA 11 CA LSANCAJW6MD  073H TELNYX LLC 730      
323-328 9 Los Angeles: DA 11 CA ANHMCANG2MD  4733 PAETEC COMMUNICATIONS, INC. - CA 730      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.