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: 644

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
440-644 A Chesterland OH CLEVOH62X0Z  001F BANDWIDTH.COM CLEC, LLC - OH 320      
440-644 0 Chesterland OH   001F BANDWIDTH.COM CLEC, LLC - OH 320   2015-06-27   
440-644 1 Chesterland OH   464C ONVOY, LLC - OH 320   2016-04-01   
440-644 2 Chesterland OH   464C ONVOY, LLC - OH 320   2016-04-01   
440-644 3 Chesterland OH   464C ONVOY, LLC - OH 320   2016-04-29   
440-644 4 Chesterland OH   464C ONVOY, LLC - OH 320   2016-04-29   
440-644 5 Chesterland OH   464C ONVOY, LLC - OH 320   2021-03-08   
440-644 6 Chesterland OH   464C ONVOY, LLC - OH 320   2021-03-08   
440-644 7 Chesterland OH   624H ONVOY SPECTRUM, LLC 320   2021-06-06   
440-644 8 Chesterland OH   073H TELNYX LLC 320   2018-09-20   
440-644 9 Chesterland OH   464C ONVOY, LLC - OH 320   2021-11-14   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.