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: 621

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
440-621 A Bainbridge (Geauga) OH CLEVOH64XIX  612K CSC VOICE, LLC 320      
440-621 0 Bainbridge (Geauga) OH ASHTOHXA5MD  464C ONVOY, LLC - OH 320   2025-05-02   
440-621 1 Bainbridge (Geauga) OH   612K CSC VOICE, LLC 320   2024-05-09   
440-621 8 Bainbridge (Geauga) OH CLEVOH62X0Z  001F BANDWIDTH.COM CLEC, LLC - OH 320   2025-12-11   
440-621 9 Bainbridge (Geauga) OH   6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 320   2026-08-25   

Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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