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: 813 [Rate centres in NPA 813] [Dial plan for NPA 813]

NXX: 423

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
813-423 A Tampa East FL TAMSFLCZDS3  594D YMAX COMMUNICATIONS CORP. - FL 952      
813-423 0 Tampa East FL TAMSFLCZDS3  594D YMAX COMMUNICATIONS CORP. - FL 952      
813-423 1 Tampa East FL TAMSFLCZDS3  594D YMAX COMMUNICATIONS CORP. - FL 952      
813-423 2 Tampa East FL TAMSFLCZDS3  594D YMAX COMMUNICATIONS CORP. - FL 952      
813-423 3 Tampa East FL TAMSFLCZDS3  594D YMAX COMMUNICATIONS CORP. - FL 952      
813-423 4 Tampa East FL TAMSFLCZDS3  594D YMAX COMMUNICATIONS CORP. - FL 952      
813-423 5 Tampa East FL TAMSFLCZDS3  594D YMAX COMMUNICATIONS CORP. - FL 952      
813-423 6 Tampa East FL TAMQFLSZDS0  7448 MCI WORLDCOM COMMUNICATIONS, INC. - FL 952      
813-423 7 Tampa East FL   829J PAETEC ITEL, LLC 952      
813-423 8 Tampa East FL TAMSFLCZDS3  594D YMAX COMMUNICATIONS CORP. - FL 952      

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.