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: 402 [Rate centres in NPA 402] [Dial plan for NPA 402]

NXX: 504

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
402-504 A Omaha NE OMAHNENWXMX  6701 AERIAL COMMUNICATIONS, INC. 644      
402-504 0 Omaha NE OMAHNENWXMX  5562 METROPCS, INC. 644   2004-04-05   
402-504 1 Omaha NE OMAHNENWXGY  318J COMCAST IP PHONE, LLC 644   2003-09-03   
402-504 2 Omaha NE OMAHNENWXMX  6701 AERIAL COMMUNICATIONS, INC. 644   2004-04-05   
402-504 3 Omaha NE OMAHNENWXGY  318J COMCAST IP PHONE, LLC 644   2005-05-02   
402-504 4 Omaha NE OMAHNENWXGY  318J COMCAST IP PHONE, LLC 644   2004-07-20   
402-504 5 Omaha NE OMAHNENWXGY  318J COMCAST IP PHONE, LLC 644   2005-05-02   
402-504 6 Omaha NE OMAHNENWXGY  318J COMCAST IP PHONE, LLC 644   2004-09-02   
402-504 7 Omaha NE OMAHNENWXGY  318J COMCAST IP PHONE, LLC 644   2005-08-18   
402-504 8 Omaha NE OMAHNENWXMX  6701 AERIAL COMMUNICATIONS, INC. 644   2004-04-05   
402-504 9 Omaha NE OMAHNENWXGY  318J COMCAST IP PHONE, LLC 644   2005-08-18   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.