Local Calling Guide

Area code/prefix search

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NPA: 937 [Rate centres in NPA 937] [Dial plan for NPA 937]

NXX: 577

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
937-577 A Clarksville OH DYTNOH014MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 328      
937-577 4 Clarksville OH DYTNOH014MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 328      
937-577 6 Clarksville OH DYTNOHKT0MD  516J TON80 COMMUNICATIONS, LLC 328   2021-07-09   
937-577 7 Clarksville OH   145J TERRA NOVA TELECOM INC. 328   2025-07-19   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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