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: 843 [Rate centres in NPA 843] [Dial plan for NPA 843]

NXX: 612

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
843-612 A St Helena Island SC CHTNSCDT24Z  318J COMCAST IP PHONE, LLC 436      
843-612 0 St Helena Island SC CHTNSCDTX6Z  077F BANDWIDTH.COM CLEC, LLC - SC 436   2018-11-15   
843-612 1 St Helena Island SC CHTNSCDTX6Y  548E ONVOY, LLC - SC 436   2019-06-29   
843-612 2 St Helena Island SC CHTNSCDT24Z  318J COMCAST IP PHONE, LLC 436   2012-06-25   
843-612 3 St Helena Island SC CHTNSCDTX6Y  548E ONVOY, LLC - SC 436   2023-04-17   
843-612 4 St Helena Island SC CHTNSCDT27Z  506J TWILIO INTERNATIONAL, INC. 436   2021-04-23   
843-612 5 St Helena Island SC CHTNSCDTX6Y  548E ONVOY, LLC - SC 436   2022-12-19   
843-612 6 St Helena Island SC CHTNSCDTX6Y  548E ONVOY, LLC - SC 436   2018-11-15   
843-612 7 St Helena Island SC CHTNSCDT08Z  508J CENTURYLINK COMMUNICATIONS, LLC 436   2013-10-11   
843-612 8 St Helena Island SC CHTNSCDTX6Y  548E ONVOY, LLC - SC 436   2019-06-29   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.