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: 305 [Rate centres in NPA 305] [Dial plan for NPA 305]

NXX: 921

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
305-921 A Miami FL MIAMFLGR37Z  8300 TELEPORT COMMUNICATIONS AMERICA, LLC - FL 46017      
305-921 0 Miami FL MIATFLADDS2  4802 LEVEL 3 COMMUNICATIONS, LLC - FL 46017   2005-12-28   
305-921 1 Miami FL MIAMFLGR37Z  8300 TELEPORT COMMUNICATIONS AMERICA, LLC - FL 46017      
305-921 2 Miami FL MIAMFLGR37Z  8300 TELEPORT COMMUNICATIONS AMERICA, LLC - FL 46017      
305-921 3 Miami FL MIAMFLGR37Z  8300 TELEPORT COMMUNICATIONS AMERICA, LLC - FL 46017      
305-921 4 Miami FL MIATFLADDS2  4802 LEVEL 3 COMMUNICATIONS, LLC - FL 46017   2005-12-28   
305-921 5 Miami FL MIAMFLGR37Z  8300 TELEPORT COMMUNICATIONS AMERICA, LLC - FL 46017      
305-921 6 Miami FL MIAMFLGR37Z  8300 TELEPORT COMMUNICATIONS AMERICA, LLC - FL 46017      
305-921 7 Miami FL MIAMFLGR37Z  8300 TELEPORT COMMUNICATIONS AMERICA, LLC - FL 46017      
305-921 8 Miami FL MIAMFLGR37Z  8300 TELEPORT COMMUNICATIONS AMERICA, LLC - FL 46017      
305-921 9 Miami FL MIATFLADDS2  4802 LEVEL 3 COMMUNICATIONS, LLC - FL 46017   2005-05-15   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.