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: 617

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
440-617 A Trinity OH WSLKOH87DS1  9321 OHIO BELL TEL CO 320      
440-617 0 Trinity OH   9321 OHIO BELL TEL CO 320      
440-617 1 Trinity OH   9321 OHIO BELL TEL CO 320      
440-617 2 Trinity OH   9321 OHIO BELL TEL CO 320      
440-617 3 Trinity OH   6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 320   2010-09-10   
440-617 4 Trinity OH   9321 OHIO BELL TEL CO 320      
440-617 5 Trinity OH   829J PAETEC ITEL, LLC 320   2009-11-16   
440-617 6 Trinity OH   793K TWC IP ENABLED SERVICES, LLC 320   2010-03-01   
440-617 7 Trinity OH   9321 OHIO BELL TEL CO 320      
440-617 8 Trinity OH   6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 320   2010-09-10   
440-617 9 Trinity OH   9321 OHIO BELL TEL CO 320      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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