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: 580

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
440-580 A Strongsville OH   4863 LEVEL 3 COMMUNICATIONS, LLC - OH 320      
440-580 1 Strongsville OH CLEVOHEKDS0  464C ONVOY, LLC - OH 320   2004-08-27   
440-580 2 Strongsville OH   4863 LEVEL 3 COMMUNICATIONS, LLC - OH 320      
440-580 3 Strongsville OH   464C ONVOY, LLC - OH 320      
440-580 4 Strongsville OH CLEVOH975MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 320   2002-05-15   
440-580 5 Strongsville OH CLEVOHEKDS0  464C ONVOY, LLC - OH 320   2004-08-27   
440-580 6 Strongsville OH CLEVOHEKDS0  464C ONVOY, LLC - OH 320   2004-08-27   
440-580 7 Strongsville OH CLEVOHEKDS0  464C ONVOY, LLC - OH 320   2004-08-27   
440-580 8 Strongsville OH   145J TERRA NOVA TELECOM INC. 320   2022-07-25   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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