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: 783

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
305-783 A Keys FL MIAMFLGR78Z  5562 METROPCS, INC. 46017      
305-783 0 Keys FL   5562 METROPCS, INC. 46017   2016-01-09   
305-783 1 Keys FL   5562 METROPCS, INC. 46017   2016-01-09   
305-783 2 Keys FL   937C ONVOY, LLC - FL 46017   2016-01-10   
305-783 3 Keys FL   937C ONVOY, LLC - FL 46017   2016-01-10   
305-783 4 Keys FL   5562 METROPCS, INC. 46017   2016-02-04   
305-783 5 Keys FL   318J COMCAST IP PHONE, LLC 46017   2016-01-18   
305-783 6 Keys FL   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 46017   2016-01-10   
305-783 7 Keys FL   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 46017   2016-01-10   
305-783 8 Keys FL   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 46017   2016-01-10   
305-783 9 Keys FL   5562 METROPCS, INC. 46017   2016-02-08   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.