Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 937 [Rate centres in NPA 937] [Dial plan for NPA 937]

NXX: 556

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
937-556 A Wilmington OH DYTNOH014MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 328      
937-556 0 Wilmington OH   6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 328   2019-03-29   
937-556 1 Wilmington OH   6529 T-MOBILE USA, INC. 328   2020-02-06   
937-556 2 Wilmington OH   7836 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 328   2016-01-27   
937-556 3 Wilmington OH   7836 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 328   2014-02-14   
937-556 4 Wilmington OH   4863 LEVEL 3 COMMUNICATIONS, LLC - OH 328      
937-556 5 Wilmington OH   4863 LEVEL 3 COMMUNICATIONS, LLC - OH 328   2005-05-14   
937-556 6 Wilmington OH   4863 LEVEL 3 COMMUNICATIONS, LLC - OH 328   2005-05-14   
937-556 7 Wilmington OH   508J CENTURYLINK COMMUNICATIONS, LLC 328   2014-05-14   
937-556 8 Wilmington OH   6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 328   2016-01-21   
937-556 9 Wilmington OH   6529 T-MOBILE USA, INC. 328   2020-02-06   

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

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