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: 276 [Rate centres in NPA 276] [Dial plan for NPA 276]

NXX: 336

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
276-336 A Martinsville VA MTVIVAXA6MD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 244      
276-336 0 Martinsville VA MTVIVAXA6MD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 244   2003-07-04   
276-336 1 Martinsville VA MTVIVAXA6MD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 244   2008-07-25   
276-336 2 Martinsville VA MTVIVAXA6MD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 244   2008-10-10   
276-336 3 Martinsville VA RONKVALKX2Z  318J COMCAST IP PHONE, LLC 244   2012-05-15   
276-336 4 Martinsville VA RONKVALKXJY  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 244   2016-03-30   
276-336 5 Martinsville VA MTVIVAXA6MD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 244   2015-07-18   
276-336 6 Martinsville VA MTVIVAXA6MD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 244   2003-07-04   
276-336 7 Martinsville VA RONKVALKX3Z  4644 TELEPORT COMMUNICATIONS AMERICA, LLC - VA 244   2012-07-20   
276-336 8 Martinsville VA RONKVALKX2Z  318J COMCAST IP PHONE, LLC 244   2013-08-01   
276-336 9 Martinsville VA MTVIVAXA6MD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 244   2003-07-04   

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.