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: MDTWOH42DS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
513-420 A Middletown OH 9321 OHIO BELL TEL CO 328      
513-420 0 Middletown OH 9321 OHIO BELL TEL CO 328      
513-420 1 Middletown OH 9321 OHIO BELL TEL CO 328      
513-420 2 Middletown OH 9321 OHIO BELL TEL CO 328      
513-420 3 Middletown OH 9321 OHIO BELL TEL CO 328      
513-420 4 Middletown OH 9321 OHIO BELL TEL CO 328      
513-420 5 Middletown OH 9321 OHIO BELL TEL CO 328      
513-420 8 Middletown OH 9321 OHIO BELL TEL CO 328      
513-420 9 Middletown OH 9321 OHIO BELL TEL CO 328      
513-422 A Middletown OH 9321 OHIO BELL TEL CO 328      
513-423 A Middletown OH 9321 OHIO BELL TEL CO 328      
513-424 A Middletown OH 9321 OHIO BELL TEL CO 328      
513-425 A Middletown OH 9321 OHIO BELL TEL CO 328      
513-425 0 Middletown OH 9321 OHIO BELL TEL CO 328      
513-425 2 Middletown OH 9321 OHIO BELL TEL CO 328      
513-425 3 Middletown OH 9321 OHIO BELL TEL CO 328      
513-425 4 Middletown OH 9321 OHIO BELL TEL CO 328      
513-425 5 Middletown OH 9321 OHIO BELL TEL CO 328      
513-425 6 Middletown OH 9321 OHIO BELL TEL CO 328      
513-425 7 Middletown OH 9321 OHIO BELL TEL CO 328      
513-425 8 Middletown OH 9321 OHIO BELL TEL CO 328      
513-425 9 Middletown OH 9321 OHIO BELL TEL CO 328      
513-705 A Middletown OH 9321 OHIO BELL TEL CO 328      
513-705 0 Middletown OH 9321 OHIO BELL TEL CO 328      
513-705 1 Middletown OH 9321 OHIO BELL TEL CO 328      
513-705 2 Middletown OH 9321 OHIO BELL TEL CO 328      
513-705 4 Middletown OH 9321 OHIO BELL TEL CO 328      
513-705 5 Middletown OH 9321 OHIO BELL TEL CO 328      
513-705 6 Middletown OH 9321 OHIO BELL TEL CO 328      
513-705 7 Middletown OH 9321 OHIO BELL TEL CO 328      
513-705 8 Middletown OH 9321 OHIO BELL TEL CO 328      
513-705 9 Middletown OH 9321 OHIO BELL TEL CO 328      
513-727 A Middletown OH 9321 OHIO BELL TEL CO 328      
513-974 A Middletown OH 9321 OHIO BELL TEL CO 328      
513-974 0 Middletown OH 9321 OHIO BELL TEL CO 328   2016-04-10   
513-974 1 Middletown OH 9321 OHIO BELL TEL CO 328   2016-04-10   
513-974 2 Middletown OH 9321 OHIO BELL TEL CO 328   2016-04-10   
513-974 3 Middletown OH 9321 OHIO BELL TEL CO 328   2016-04-10   
513-974 4 Middletown OH 9321 OHIO BELL TEL CO 328   2016-04-10   
513-974 5 Middletown OH 9321 OHIO BELL TEL CO 328   2016-04-10   
513-974 6 Middletown OH 9321 OHIO BELL TEL CO 328   2016-04-10   
513-974 7 Middletown OH 9321 OHIO BELL TEL CO 328   2016-04-10   
513-974 8 Middletown OH 9321 OHIO BELL TEL CO 328   2016-04-10   
513-974 9 Middletown OH 9321 OHIO BELL TEL CO 328   2016-04-10   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.