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: 440 [Rate centres in NPA 440] [Dial plan for NPA 440]

NXX: 256

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
440-256 A Kirtland OH KRLDOH25RS1  9321 OHIO BELL TEL CO 320      
440-256 0 Kirtland OH KRLDOH25RS1  9321 OHIO BELL TEL CO 320      
440-256 1 Kirtland OH KRLDOH25RS1  9321 OHIO BELL TEL CO 320      
440-256 2 Kirtland OH KRLDOH25RS1  9321 OHIO BELL TEL CO 320      
440-256 3 Kirtland OH KRLDOH25RS1  9321 OHIO BELL TEL CO 320      
440-256 4 Kirtland OH KRLDOH25RS1  9321 OHIO BELL TEL CO 320      
440-256 5 Kirtland OH KRLDOH25RS1  9321 OHIO BELL TEL CO 320      
440-256 6 Kirtland OH CLEVOH62X0Z  001F BANDWIDTH.COM CLEC, LLC - OH 320      
440-256 7 Kirtland OH   145J TERRA NOVA TELECOM INC. 320      
440-256 8 Kirtland OH KRLDOH25RS1  9321 OHIO BELL TEL CO 320      
440-256 9 Kirtland OH KRLDOH25RS1  9321 OHIO BELL TEL CO 320      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.