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: 870

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
440-870 A Strongsville OH CLEVOH024MD  516C AT&T CORP. 320      
440-870 0 Strongsville OH CLEVOHEK4MD  073H TELNYX LLC 320   2017-03-14   
440-870 1 Strongsville OH CLEVOHBBGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 320   2017-07-15   
440-870 2 Strongsville OH CLEVOH64X7X  547D TIME WARNER CABLE INFORMATION SVCS (OHIO) - OH 320   2017-12-17   
440-870 3 Strongsville OH INDPOHEB2MD  6529 T-MOBILE USA, INC. 320   2019-02-17   
440-870 4 Strongsville OH INDPOHEB2MD  6529 T-MOBILE USA, INC. 320   2019-02-17   
440-870 5 Strongsville OH CLEVOHBBGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 320   2019-03-11   
440-870 6 Strongsville OH CLEVOH02RMD  7532 TELEPORT COMMUNICATIONS AMERICA, LLC - OH 320   2017-11-10   
440-870 7 Strongsville OH CLEVOH024MD  516C AT&T CORP. 320   2016-11-27   
440-870 8 Strongsville OH CLEVOHEKDS0  464C ONVOY, LLC - OH 320   2020-01-10   
440-870 9 Strongsville OH CLEVOHEKDS0  464C ONVOY, LLC - OH 320   2020-01-10   

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.