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: 747 [Rate centres in NPA 747] [Dial plan for NPA 747]

NXX: 944

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
747-944 A Reseda CA LSANCAJWIMD  965H FRACTEL, LLC 730      
747-944 0 Reseda CA   649C ONVOY, LLC - CA 730   2021-07-28   
747-944 1 Reseda CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-08-18   
747-944 2 Reseda CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-10-05   
747-944 3 Reseda CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2025-11-12   
747-944 4 Reseda CA   965H FRACTEL, LLC 730   2021-01-03   
747-944 5 Reseda CA   624H ONVOY SPECTRUM, LLC 730   2021-07-22   
747-944 7 Reseda CA   6529 T-MOBILE USA, INC. 730   2021-07-16   
747-944 8 Reseda CA   6529 T-MOBILE USA, INC. 730   2021-07-16   
747-944 9 Reseda CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2021-03-31   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.