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: 372

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
440-372 A North Royalton OH CLEVOH975MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 320      
440-372 0 North Royalton OH   073H TELNYX LLC 320   2023-09-10   
440-372 1 North Royalton OH   7443 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 320   2004-10-20   
440-372 2 North Royalton OH   515J IP HORIZON LLC 320   2024-03-07   
440-372 4 North Royalton OH   464C ONVOY, LLC - OH 320   2021-03-08   
440-372 6 North Royalton OH   516J TON80 COMMUNICATIONS, LLC 320   2021-09-08   
440-372 7 North Royalton OH   829J PAETEC ITEL, LLC 320   2004-03-10   
440-372 8 North Royalton OH   4863 LEVEL 3 COMMUNICATIONS, LLC - OH 320   2006-06-16   
440-372 9 North Royalton OH   073H TELNYX LLC 320   2021-03-06   

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

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