Local Calling Guide

Area code/prefix search

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

NXX: 388

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
440-388 A Kirtland OH CLEVOH975MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 320   2024-12-17   
440-388 0 Kirtland OH   4863 LEVEL 3 COMMUNICATIONS, LLC - OH 320   2005-05-14   
440-388 1 Kirtland OH   464C ONVOY, LLC - OH 320   2004-08-23   
440-388 3 Kirtland OH   001F BANDWIDTH.COM CLEC, LLC - OH 320   2021-12-06   
440-388 4 Kirtland OH   4863 LEVEL 3 COMMUNICATIONS, LLC - OH 320   2004-03-09   
440-388 5 Kirtland OH   464C ONVOY, LLC - OH 320   2004-08-23   
440-388 6 Kirtland OH   464C ONVOY, LLC - OH 320   2004-08-23   
440-388 7 Kirtland OH   464C ONVOY, LLC - OH 320   2004-08-23   
440-388 8 Kirtland OH   464C ONVOY, LLC - OH 320   2004-08-23   
440-388 9 Kirtland OH   464C ONVOY, LLC - OH 320   2004-08-23   

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

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