Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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

NXX: 356

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
937-356 A Dayton OH DYTNOH2222E  9321 OHIO BELL TEL CO 328      
937-356 0 Dayton OH   9321 OHIO BELL TEL CO 328      
937-356 1 Dayton OH   9321 OHIO BELL TEL CO 328      
937-356 2 Dayton OH   9321 OHIO BELL TEL CO 328      
937-356 3 Dayton OH   001F BANDWIDTH.COM CLEC, LLC - OH 328   2010-09-02   
937-356 4 Dayton OH   9321 OHIO BELL TEL CO 328      
937-356 5 Dayton OH   9321 OHIO BELL TEL CO 328      
937-356 6 Dayton OH   7532 TELEPORT COMMUNICATIONS AMERICA, LLC - OH 328   2010-10-23   
937-356 7 Dayton OH   9321 OHIO BELL TEL CO 328      
937-356 8 Dayton OH   6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 328   2010-09-16   
937-356 9 Dayton OH   6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 328   2010-09-16   

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.