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: 688

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
937-688 A Springfield OH DYTNOH014MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 328      
937-688 0 Springfield OH DYTNOH22X8Z  6025 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 328   2018-12-10   
937-688 1 Springfield OH DYTNOH014MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 328   2005-06-05   
937-688 2 Springfield OH DYTNOH014MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 328   2011-04-09   
937-688 3 Springfield OH DYTNOH014MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 328   2004-08-27   
937-688 4 Springfield OH DYTNOH014MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 328      
937-688 5 Springfield OH DYTNOH014MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 328   2020-05-29   
937-688 6 Springfield OH HRTPOHBL0MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 328   2023-02-15   
937-688 7 Springfield OH DYTNOH22XGY  464C ONVOY, LLC - OH 328   2020-11-15   
937-688 8 Springfield OH DYTNOH22XGY  464C ONVOY, LLC - OH 328   2020-11-15   
937-688 9 Springfield OH DYTNOHKTDS3  284F PEERLESS NETWORK OF OHIO, LLC - OH 328   2020-06-28   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.