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: 551 [Rate centres in NPA 551] [Dial plan for NPA 551]

NXX: 397

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
551-397 A Hackensack NJ   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 224   2024-09-13   
551-397 0 Hackensack NJ   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 224      
551-397 1 Hackensack NJ   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 224      
551-397 2 Hackensack NJ   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 224      
551-397 3 Hackensack NJ   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 224      
551-397 4 Hackensack NJ   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 224      
551-397 5 Hackensack NJ   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 224      
551-397 6 Hackensack NJ   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 224      
551-397 7 Hackensack NJ   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 224      
551-397 8 Hackensack NJ   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 224      
551-397 9 Hackensack NJ   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 224      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.