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: 410 [Rate centres in NPA 410] [Dial plan for NPA 410]

NXX: 397

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-397 A Wingate MD HONGMDHGRS0  9212 VERIZON MARYLAND, INC. 242      
410-397 0 Wingate MD   2593 CORE COMMUNICATIONS, INC.- MD 242      
410-397 1 Wingate MD SLBRMD902MD  073H TELNYX LLC 242      
410-397 2 Wingate MD HONGMDHGRS0  9212 VERIZON MARYLAND, INC. 242      
410-397 3 Wingate MD HONGMDHGRS0  9212 VERIZON MARYLAND, INC. 242      
410-397 5 Wingate MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
410-397 7 Wingate MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242      
410-397 8 Wingate MD WNGTMDWGRS0  9212 VERIZON MARYLAND, INC. 242      
410-397 9 Wingate MD   145J TERRA NOVA TELECOM INC. 242      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.