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: 580

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
937-580 A Dayton OH DYTNOH2222J  9321 OHIO BELL TEL CO 328      
937-580 0 Dayton OH HRTPOHBLGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 328      
937-580 1 Dayton OH HRTPOHBLGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 328      
937-580 2 Dayton OH DYTNOH2222J  9321 OHIO BELL TEL CO 328      
937-580 3 Dayton OH DYTNOH2222J  9321 OHIO BELL TEL CO 328      
937-580 4 Dayton OH HRTPOHBLGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 328      
937-580 5 Dayton OH HRTPOHBLGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 328      
937-580 6 Dayton OH HRTPOHBLGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 328      
937-580 7 Dayton OH HRTPOHBLGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 328      
937-580 8 Dayton OH HRTPOHBLGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 328      
937-580 9 Dayton OH HRTPOHBLGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 328      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.