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: 318 [Rate centres in NPA 318] [Dial plan for NPA 318]

NXX: 633

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
318-633 A Delta LA VCBGMSMADS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 482      
318-633 0 Delta LA JCSNMSCPXMZ  749E ONVOY, LLC - LA 482   2019-03-30   
318-633 1 Delta LA JCSNMSPSXFY  073H TELNYX LLC 482   2019-11-18   
318-633 2 Delta LA JCSNMSCP70Z  506J TWILIO INTERNATIONAL, INC. 482   2021-07-12   
318-633 3 Delta LA JCSNMSCPXMZ  749E ONVOY, LLC - LA 482   2021-02-25   
318-633 4 Delta LA JCSNMSPSXPY  516J TON80 COMMUNICATIONS, LLC 482   2022-03-30   
318-633 6 Delta LA   145J TERRA NOVA TELECOM INC. 482   2022-07-04   
318-633 7 Delta LA JCSNMSCPXMZ  749E ONVOY, LLC - LA 482   2023-09-28   
318-633 8 Delta LA JCSNMSCP60Z  624H ONVOY SPECTRUM, LLC 482   2023-07-05   
318-633 9 Delta LA VCBGMSMADS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 482      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.