Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 440 [Rate centres in NPA 440] [Dial plan for NPA 440]

NXX: 571

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
440-571 A Willoughby OH WLGHOH9495C  9321 OHIO BELL TEL CO 320      
440-571 0 Willoughby OH CLEVOH62X0Z  001F BANDWIDTH.COM CLEC, LLC - OH 320   2011-07-03   
440-571 1 Willoughby OH CLEVOHBBGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 320   2011-07-14   
440-571 2 Willoughby OH INDPOHEB9MD  6529 T-MOBILE USA, INC. 320   2012-03-26   
440-571 3 Willoughby OH CLEVOHEKDS1  284F PEERLESS NETWORK OF OHIO, LLC - OH 320   2013-04-26   
440-571 4 Willoughby OH CLEVOH64XKX  793K TWC IP ENABLED SERVICES, LLC 320   2013-09-18   
440-571 5 Willoughby OH CLEVOH64XKX  793K TWC IP ENABLED SERVICES, LLC 320   2013-09-15   
440-571 6 Willoughby OH CLEVOHEKDS0  464C ONVOY, LLC - OH 320   2014-09-06   
440-571 7 Willoughby OH CLEVOHEKDS0  464C ONVOY, LLC - OH 320   2012-01-07   
440-571 8 Willoughby OH CLEVOHEKDS1  284F PEERLESS NETWORK OF OHIO, LLC - OH 320   2013-04-26   
440-571 9 Willoughby OH WLGHOH9495C  9321 OHIO BELL TEL CO 320      

Last updated: Tue, 29 Sep 2026 03:00:13 UTC

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