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: 603 [Rate centres in NPA 603] [Dial plan for NPA 603]

NXX: 386

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-386 A Salem NH SALMNHNB5MD  9247 BROADVIEW NETWORKS, INC. - NH 122      
603-386 0 Salem NH SALMNHNB5MD  9247 BROADVIEW NETWORKS, INC. - NH 122      
603-386 1 Salem NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-386 2 Salem NH SALMNHNB5MD  9247 BROADVIEW NETWORKS, INC. - NH 122      
603-386 3 Salem NH SALMNHNB5MD  9247 BROADVIEW NETWORKS, INC. - NH 122      
603-386 4 Salem NH SALMNHNB5MD  9247 BROADVIEW NETWORKS, INC. - NH 122      
603-386 5 Salem NH SALMNHNB5MD  9247 BROADVIEW NETWORKS, INC. - NH 122      
603-386 6 Salem NH SALMNHNB5MD  9247 BROADVIEW NETWORKS, INC. - NH 122      
603-386 7 Salem NH SALMNHNB5MD  9247 BROADVIEW NETWORKS, INC. - NH 122      
603-386 8 Salem NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-386 9 Salem NH SALMNHNB5MD  9247 BROADVIEW NETWORKS, INC. - NH 122      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.