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: 850 [Rate centres in NPA 850] [Dial plan for NPA 850]

NXX: 846

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
850-846 A Madison FL TLHSFLXAXKX  4802 LEVEL 3 COMMUNICATIONS, LLC - FL 953      
850-846 0 Madison FL TLHSFLXAX0Z  624H ONVOY SPECTRUM, LLC 953   2021-11-30   
850-846 1 Madison FL TLHSFLXAXQX  937C ONVOY, LLC - FL 953   2019-02-25   
850-846 2 Madison FL TLHSFLXAX0Z  624H ONVOY SPECTRUM, LLC 953   2021-03-09   
850-846 3 Madison FL TLHSFLXAX0Y  982E BANDWIDTH.COM CLEC, LLC - FL 953   2020-09-18   
850-846 4 Madison FL TLHSFLXAX0Z  624H ONVOY SPECTRUM, LLC 953   2021-08-01   
850-846 5 Madison FL TLHSFLXAX0Z  624H ONVOY SPECTRUM, LLC 953   2021-08-01   
850-846 6 Madison FL TLHSFLXAXKX  4802 LEVEL 3 COMMUNICATIONS, LLC - FL 953      
850-846 7 Madison FL TLHSFLXAXQX  937C ONVOY, LLC - FL 953   2016-03-18   
850-846 8 Madison FL TLHSFLXAXQX  937C ONVOY, LLC - FL 953   2016-03-18   
850-846 9 Madison FL TLHSFLXAXQX  937C ONVOY, LLC - FL 953   2020-08-21   

Last updated: Tue, 15 Nov 2022 00:10:00 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.