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: 440 [Rate centres in NPA 440] [Dial plan for NPA 440]

NXX: 636

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
440-636 A Huntsburg OH HTBGOHXARS0  0666 WINDSTREAM WESTERN RESERVE, INC. 320      
440-636 0 Huntsburg OH CLEVOHEKDS0  464C ONVOY, LLC - OH 320   2021-01-30   
440-636 1 Huntsburg OH CLEVOHEKDS0  464C ONVOY, LLC - OH 320   2020-01-09   
440-636 2 Huntsburg OH NRTNOHIADMD  6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 320   2007-08-24   
440-636 3 Huntsburg OH NRTNOHIADMD  6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 320   2004-08-21   
440-636 4 Huntsburg OH CLEVOHEKDS0  464C ONVOY, LLC - OH 320   2014-02-27   
440-636 5 Huntsburg OH HTBGOHXARS0  0666 WINDSTREAM WESTERN RESERVE, INC. 320      
440-636 6 Huntsburg OH HTBGOHXARP0  0666 WINDSTREAM WESTERN RESERVE, INC. 320      
440-636 7 Huntsburg OH CLEVOH62XQZ  508J CENTURYLINK COMMUNICATIONS, LLC 320   2015-08-28   
440-636 8 Huntsburg OH CLEVOHEKDS0  464C ONVOY, LLC - OH 320   2020-01-09   
440-636 9 Huntsburg OH HTBGOHXARS0  0666 WINDSTREAM WESTERN RESERVE, INC. 320      

Last updated: Sat, 04 Jul 2026 13:07:56 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.