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: 791

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
937-791 A Dayton OH DYTNOH22XAZ  478J NUSO, LLC 328      
937-791 0 Dayton OH HRTPOHBL0MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 328   2020-12-25   
937-791 1 Dayton OH DYTNOH22XAZ  478J NUSO, LLC 328   2020-10-27   
937-791 2 Dayton OH HRTPOHBL0MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 328   2020-12-25   
937-791 3 Dayton OH HRTPOHBL0MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 328   2020-12-25   
937-791 4 Dayton OH HRTPOHBL0MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 328   2020-12-25   
937-791 5 Dayton OH DYTNOH22XTY  6529 T-MOBILE USA, INC. 328   2021-02-14   
937-791 6 Dayton OH DYTNOH22XGY  464C ONVOY, LLC - OH 328   2021-05-10   
937-791 7 Dayton OH DYTNOH22XGY  464C ONVOY, LLC - OH 328   2021-05-10   
937-791 8 Dayton OH HRTPOHBL0MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 328   2021-05-21   
937-791 9 Dayton OH HRTPOHBL0MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 328   2020-12-25   

Last updated: Fri, 13 May 2022 22:16:13 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.