Polk - 152.26.41.253
- Charts
- Firewalls
- LEA Firewalls
- Alamance-Burlington
- Alexander
- Alleghany (non-MCNC)
- Anson
- Ashe
- Asheboro City
- Asheville City
- Avery
- Beaufort (non-MCNC)
- Bertie
- Bladen
- Brunswick (non-MCNC)
- Buncombe (non-MCNC)
- Burke
- Cabarrus
- Caldwell
- Camden
- Carteret
- Caswell
- Catawba
- Chapel Hill-Carrboro
- Chatham
- Cherokee (non-MCNC)
- Clay
- Cleveland
- Clinton City
- Columbus
- Craven
- Cumberland
- Currituck
- Currituck - Knotts Island
- Dare
- Davidson
- Davie
- Duplin
- Durham
- Edenton-Chowan
- Edgecombe
- Elkin City (non-MCNC)
- Winston Salem/Forsyth (non-MCNC)
- Franklin
- Gaston (non-MCNC)
- Gates
- Graham
- Granville
- Greene
- Guilford (non-MCNC)
- Halifax
- Harnett
- Haywood (non-MCNC)
- Henderson
- Hertford
- Hickory City (non-MCNC)
- Hoke
- Hyde
- Iredell
- Jackson (non-MCNC)
- Johnston
- Jones
- Kannapolis City
- Lee
- Lenoir
- Lexington City
- Lincoln (non-MCNC)
- Macon (non-MCNC)
- Madison
- Martin
- McDowell
- Charlotte-Mecklenburg (non-MCNC)
- Mitchell
- Montgomery
- Moore (non-MCNC)
- Mooresville Graded
- Mount Airy City
- Nash
- New Hanover (non-MCNC)
- Newton Conover
- Northampton
- Onslow (non-MCNC)
- Orange
- Pamlico (non-MCNC)
- Elizabeth City-Pasquotank
- Pender (non-MCNC)
- Perquimans
- Person
- Pitt
- Polk
- Randolph
- Richmond
- Roanoke Rapids City
- Robeson
- Rockingham
- Rowan-Salisbury
- Rutherford
- Sampson
- Scotland
- Stanly
- Stokes
- Surry
- Swain (non-MCNC)
- Thomasville City
- Transylvania
- Tyrrell
- Union (non-MCNC)
- Vance
- Wake (non-MCNC)
- Warren
- Washington
- Watauga
- Wayne
- Weldon City
- Whiteville
- Wilkes (non-MCNC)
- Wilson
- Yadkin
- Yancey
- LEA Firewalls
- Miscellaneous
