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: 419

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
305-419 A Keys FL MIAMFL98DS4  937C ONVOY, LLC - FL 46017      
305-419 0 Keys FL MIAMFL98DS4  937C ONVOY, LLC - FL 46017   2022-12-08   
305-419 1 Keys FL MIAMFL98DS4  937C ONVOY, LLC - FL 46017   2022-12-08   
305-419 2 Keys FL MIAMFL98DS4  937C ONVOY, LLC - FL 46017   2022-12-08   
305-419 3 Keys FL MIAMFL98DS4  937C ONVOY, LLC - FL 46017   2022-12-08   
305-419 4 Keys FL MIAMFL98DS4  937C ONVOY, LLC - FL 46017   2022-12-08   
305-419 5 Keys FL MIAMFL98DS4  937C ONVOY, LLC - FL 46017   2022-12-08   
305-419 6 Keys FL MIAMFL98DS4  937C ONVOY, LLC - FL 46017   2022-12-08   
305-419 7 Keys FL MIAMFL98DS4  937C ONVOY, LLC - FL 46017   2022-12-08   
305-419 8 Keys FL MIAMFL98DS4  937C ONVOY, LLC - FL 46017   2022-12-08   
305-419 9 Keys FL MIAMFL98DS4  937C ONVOY, LLC - FL 46017   2022-12-08   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.