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: 501

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
813-501 A Tampa North FL TAMQFLSZDS0  7448 MCI WORLDCOM COMMUNICATIONS, INC. - FL 952      
813-501 0 Tampa North FL TAMQFLUNGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 952   2025-01-11   
813-501 1 Tampa North FL TAMQFLSZDS0  7448 MCI WORLDCOM COMMUNICATIONS, INC. - FL 952   2011-02-06   
813-501 2 Tampa North FL TAMPFLXXZMD  982E BANDWIDTH.COM CLEC, LLC - FL 952   2012-04-20   
813-501 3 Tampa North FL TAMPFLXXZMD  982E BANDWIDTH.COM CLEC, LLC - FL 952   2012-06-11   
813-501 4 Tampa North FL   045L BHN IP ENABLED SERVICES, LLC 952   2012-06-03   
813-501 5 Tampa North FL TAMPFLXXZMD  982E BANDWIDTH.COM CLEC, LLC - FL 952   2012-06-11   
813-501 6 Tampa North FL TAMSFLDEDSG  937C ONVOY, LLC - FL 952   2012-06-24   
813-501 7 Tampa North FL TAMPFLXXZMD  982E BANDWIDTH.COM CLEC, LLC - FL 952   2012-09-22   
813-501 8 Tampa North FL   045L BHN IP ENABLED SERVICES, LLC 952   2012-09-07   
813-501 9 Tampa North FL TAMQFLFZ5MD  6701 AERIAL COMMUNICATIONS, INC. 952   2012-11-24   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.