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: 737 [Rate centres in NPA 737] [Dial plan for NPA 737]

NXX: 742

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-742 A Austin TX AUSTTXGR55Z  516J TON80 COMMUNICATIONS, LLC 558      
737-742 0 Austin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2021-06-21   
737-742 1 Austin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2021-06-21   
737-742 2 Austin TX AUSTTXGR55Z  516J TON80 COMMUNICATIONS, LLC 558   2021-06-20   
737-742 3 Austin TX AUSTTXGR55Z  516J TON80 COMMUNICATIONS, LLC 558   2021-06-20   
737-742 4 Austin TX AUSTTXGR55Z  516J TON80 COMMUNICATIONS, LLC 558   2021-06-20   
737-742 5 Austin TX AUSTTXGR55Z  516J TON80 COMMUNICATIONS, LLC 558   2021-06-20   
737-742 6 Austin TX AUSTTXGR55Z  516J TON80 COMMUNICATIONS, LLC 558   2021-06-20   
737-742 7 Austin TX AUSTTXGR55Z  516J TON80 COMMUNICATIONS, LLC 558   2021-06-20   
737-742 8 Austin TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2021-06-21   
737-742 9 Austin TX AUSWTXGX6MD  6529 T-MOBILE USA, INC. 558   2021-07-11   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.