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.

Switch: CLEVOH978MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
216-607 A Cleveland OH 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 320   2026-08-25   
216-607 2 Cleveland OH 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 320   2026-08-25   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.