| ADAMS RURAL ELECTRIC COOP | NPAREC | AT&T Non-Participating Code for ADAMS RURAL ELECTRIC COOP
Adams, Brown, Highland, Pike, and Scioto | Ohio | Adams, Brown, Highland, Pike, Scioto |
| American Electric Power/Columbus Southern Power | NPCSP | AT&T Non-Participating code - AEP- Columbus Southern Power | Ohio | Adams, ADMIN, Allen, Ashland, Ashtabula, Athens, Auglaize, Belmont, Brown, Butler, Carroll, Champaign, Clark, Clermont, Clinton, Columbiana, Coshocton, Crawford, Cuyahoga, Darke, Defiance, Delaware, Erie, Fairfield, Fayette, Franklin, Fulton, Gallia, Geauga, Greene, Guernsey, Hamilton, Hancock, Hardin, Harrison, Henry, Highland, Hocking, Holmes, Huron, Jackson, Jefferson, Knox, Lake, Lawrence, Licking, Logan, Lorain, Lucas, Madison, Mahoning, Marion, Medina, Meigs, Mercer, Miami, Monroe, Montgomery, Morgan, Morrow, Muskingum, Noble, Ottawa, Paulding, Perry, Pickaway, Pike, Portage, Preble, Putnam, Richland, Ross, Sandusky, Scioto, Seneca, Shelby, Stark, Summit, Trumbull, Tuscarawas, Union, Van Wert, Vinton, Warren, Washington, Wayne, Williams, Wood, Wyandot |
| American Electric Power/Ohio Power | NPAEPO | AT&T Non-Participating Code
All counties | Ohio | Adams, ADMIN, Allen, Ashland, Ashtabula, Athens, Auglaize, Belmont, Brown, Butler, Carroll, Champaign, Clark, Clermont, Clinton, Columbiana, Coshocton, Crawford, Cuyahoga, Darke, Defiance, Delaware, Erie, Fairfield, Fayette, Franklin, Fulton, Gallia, Geauga, Greene, Guernsey, Hamilton, Hancock, Hardin, Harrison, Henry, Highland, Hocking, Holmes, Huron, Jackson, Jefferson, Knox, Lake, Lawrence, Licking, Logan, Lorain, Lucas, Madison, Mahoning, Marion, Medina, Meigs, Mercer, Miami, Monroe, Montgomery, Morgan, Morrow, Muskingum, Noble, Ottawa, Paulding, Perry, Pickaway, Pike, Portage, Preble, Putnam, Richland, Ross, Sandusky, Scioto, Seneca, Shelby, Stark, Summit, Trumbull, Tuscarawas, Union, Van Wert, Vinton, Warren, Washington, Wayne, Williams, Wood, Wyandot |
| Amplex Electric | AMPLXE | Wood county, Hancock county, Ottawa county, Sandusky county, Putnam county, Henry county, Wyandot county, Erie county | Ohio | Erie, Hancock, Henry, Ottawa, Putnam, Sandusky, Wood, Wyandot |
| Arium Networks | ARIUMOH | All of Ohio | Ohio | Adams, ADMIN, Allen, Ashland, Ashtabula, Athens, Auglaize, Belmont, Brown, Butler, Carroll, Champaign, Clark, Clermont, Clinton, Columbiana, Coshocton, Crawford, Cuyahoga, Darke, Defiance, Delaware, Erie, Fairfield, Fayette, Franklin, Fulton, Gallia, Geauga, Greene, Guernsey, Hamilton, Hancock, Hardin, Harrison, Henry, Highland, Hocking, Holmes, Huron, Jackson, Jefferson, Knox, Lake, Lawrence, Licking, Logan, Lorain, Lucas, Madison, Mahoning, Marion, Medina, Meigs, Mercer, Miami, Monroe, Montgomery, Morgan, Morrow, Muskingum, Noble, Ottawa, Paulding, Perry, Pickaway, Pike, Portage, Preble, Putnam, Richland, Ross, Sandusky, Scioto, Seneca, Shelby, Stark, Summit, Trumbull, Tuscarawas, Union, Van Wert, Vinton, Warren, Washington, Wayne, Williams, Wood, Wyandot |
| Armstrong Utilities Inc. - Ashland | ARMASH | For the Ashland System
For the entirety of Ashland, Erie, Huron, Know, Morrow, & Richland Counties.
In Lorain, Medina, & Wayne Counties, only for the following Townships/Boroughs:
Lorain - Brighton Township, Brownhelm Township, Camden Township, City of Oberlin, Henrietta Township, Huntington Township, Pittsfield Township, Rochester Township, Russia Township, Village of Kipton, Village of Rochester, Village of South Amherst, Village of Wellington, Wellington Township
Medina - Chatham Township, Harrisville Township, Homer Township, Lafayette Township, Spencer Township, Village of Lodi, Village of Spencer
Wayne - Canaan Township, Chester Township, Congress Township | Ohio | Ashland, Erie, Huron, Knox, Lorain, Medina, Morrow, Richland, Wayne |
| Armstrong Utilities Inc. - Bellaire | ARMBEL | Formerly MCTV. For the Bellaire System | Ohio | Belmont, Carroll, Columbiana, Harrison, Jefferson, Monroe, Noble |
| Armstrong Utilities Inc. - Boardman | ARMBOA | For the Boardman System
For the entirety of Mahoning County.
In Trumbull County, only for the following Townships/Boroughs:
Trumbull - City of Girard, City of Hubbard, City of Youngstown, Hubbard Township, Weathersfield Township | Ohio | Mahoning, Trumbull |
| Armstrong Utilities Inc. - Massillon | ARMMAS | Formerly MCTV. For the Massillon System | Ohio | Holmes, Stark, Summit, Tuscarawas, Wayne |
| Armstrong Utilities Inc. - Meadville | ARMMEA | For the Ohio side of the Meadville System
For the entirety of Ashtabula County.
In Trumbull County, only for the following Townships/Boroughs:
Trumbull - Kinsman Township, Vernon Township | Ohio | Ashtabula, Trumbull |
| Armstrong Utilities Inc. - Medina | ARMMED | For the Medina System
In Lorain, Medina, & Wayne Counties, only for the following Townships/Boroughs:
Lorain - Lagrange Township, Penfield Township
Medina - Brunswick Hills Township, City of Medina, Guilford Township, Litchfield Township, Liverpool Township, Medina Township, Montville Township, Village of Wadsworth, Wadsworth Township, York Township
Wayne - Baughman Township, Chippewa Township, City of Orrville, East Union Township, Green Township, Milton Township, Sugar Creek Township, Village of Dalton, Village of Marshallville | Ohio | Cuyahoga, Lorain, Medina, Wayne |
| Armstrong Utilities Inc. - South Point | ARMUSP | For the Ohio side of the South Point System
For the entirety of Gallia & Lawrence County | Ohio | Gallia, Lawrence |
| Armstrong Utilities Inc. - Wooster | ARMWOO | Formerly MCTV. For the Wooster System | Ohio | Holmes, Wayne |
| AT&T National Pole PMO Ohio | ATTPMOOH | All counties in OH. For AT&T National team use only. | Ohio | Adams, ADMIN, Allen, Ashland, Ashtabula, Athens, Auglaize, Belmont, Brown, Butler, Carroll, Champaign, Clark, Clermont, Clinton, Columbiana, Coshocton, Crawford, Cuyahoga, Darke, Defiance, Delaware, Erie, Fairfield, Fayette, Franklin, Fulton, Gallia, Geauga, Greene, Guernsey, Hamilton, Hancock, Hardin, Harrison, Henry, Highland, Hocking, Holmes, Huron, Jackson, Jefferson, Knox, Lake, Lawrence, Licking, Logan, Lorain, Lucas, Madison, Mahoning, Marion, Medina, Meigs, Mercer, Miami, Monroe, Montgomery, Morgan, Morrow, Muskingum, Noble, Ottawa, Paulding, Perry, Pickaway, Pike, Portage, Preble, Putnam, Richland, Ross, Sandusky, Scioto, Seneca, Shelby, Stark, Summit, Trumbull, Tuscarawas, Union, Van Wert, Vinton, Warren, Washington, Wayne, Williams, Wood, Wyandot |
| AT&T Ohio | ATTOH | All of Ohio | Ohio | Adams, ADMIN, Allen, Ashland, Ashtabula, Athens, Auglaize, Belmont, Brown, Butler, Carroll, Champaign, Clark, Clermont, Clinton, Columbiana, Coshocton, Crawford, Cuyahoga, Darke, Defiance, Delaware, Erie, Fairfield, Fayette, Franklin, Fulton, Gallia, Geauga, Greene, Guernsey, Hamilton, Hancock, Hardin, Harrison, Henry, Highland, Hocking, Holmes, Huron, Jackson, Jefferson, Knox, Lake, Lawrence, Licking, Logan, Lorain, Lucas, Madison, Mahoning, Marion, Medina, Meigs, Mercer, Miami, Monroe, Montgomery, Morgan, Morrow, Muskingum, Noble, Ottawa, Paulding, Perry, Pickaway, Pike, Portage, Preble, Putnam, Richland, Ross, Sandusky, Scioto, Seneca, Shelby, Stark, Summit, Trumbull, Tuscarawas, Union, Van Wert, Vinton, Warren, Washington, Wayne, Williams, Wood, Wyandot |
| Breezeline | BZLOH | Cuyahoga, Lorain, Medina, Summit, Erie, Lake, Franklin, Delaware, Union, Fairfield, Licking, | Ohio | Cuyahoga, Delaware, Erie, Fairfield, Franklin, Lake, Licking, Lorain, Medina, Summit, Union |
| Bright.net Internet Services | NPBNIS | AT&T Non-Participating Code for Bright.net | Ohio | Allen, Defiance, Paulding, Putnam |
| Buckeye Rural Electric Cooperative | NPBUCR | AT&T Non-Participating Code for Buckeye Rural Electric Cooperative
Athens, Gallia, Jackson, Lawrence, Meigs, Pike, Ross, Scioto, and Vinton | Ohio | Athens, Gallia, Jackson, Meigs, Pike, Ross, Scioto, Vinton |
| BUTLER RURAL ELECTRIC COOPERATIVE | NPBTLR | AT&T Non-Participating Code for BUTLER RURAL ELECTRIC COOP
Butler, Hamilton, Preble, and Montgomery | Ohio | Butler, Hamilton, Montgomery, Preble |
| CARROLL ELECTRIC COOPERATIVE | NPCARE | AT&T Non-Participating Code for CARROLL ELECTRIC COOPERATIVE
Carroll, Columbiana, Harrison, Jefferson, Stark, and Tuscarawas | Ohio | Carroll, Columbiana, Harrison, Jefferson, Stark, Tuscarawas |
| CENTURYLINK Facility License | NPLUCL | AT&T Non-Participating Code | Ohio | Adams, ADMIN, Allen, Ashland, Ashtabula, Athens, Auglaize, Belmont, Brown, Butler, Carroll, Champaign, Clark, Clermont, Clinton, Columbiana, Coshocton, Crawford, Cuyahoga, Darke, Defiance, Delaware, Erie, Fairfield, Fayette, Franklin, Fulton, Gallia, Geauga, Greene, Guernsey, Hamilton, Hancock, Hardin, Harrison, Henry, Highland, Hocking, Holmes, Huron, Jackson, Jefferson, Knox, Lake, Lawrence, Licking, Logan, Lorain, Lucas, Madison, Mahoning, Marion, Medina, Meigs, Mercer, Miami, Monroe, Montgomery, Morgan, Morrow, Muskingum, Noble, Ottawa, Paulding, Perry, Pickaway, Pike, Portage, Preble, Putnam, Richland, Ross, Sandusky, Scioto, Seneca, Shelby, Stark, Summit, Trumbull, Tuscarawas, Union, Van Wert, Vinton, Warren, Washington, Wayne, Williams, Wood, Wyandot |
| City of Columbus Electric | NPCELE | AT&T Non-Participating Code for City of Columbus Electric | Ohio | Delaware, Fairfield, Franklin |
| City of Cuyahoga Falls - Electric Service Department | NPCUFA | AT&T Non-Participating Code for City of Cuyahoga Falls
Summit | Ohio | Summit |
| City of Hubbard Light Department | NPCHUB | AT&T Non-Participating Code for City of Hubbard Light Department
Trumbull | Ohio | Trumbull |
| City of Painesville | NPCPNS | AT&T Non-Participating Code for City of Painesville
Lake | Ohio | Lake |
| City of Piqua | NPCPIQ | AT&T Non-Participating Code for City of Piqua
Miami | Ohio | Miami |
| City of St Clairsville | NPCSCL | AT&T Non-Participating Code for City of St Clairsville
Belmont | Ohio | Belmont |
| City of Westerville | WSTRVL | Westerville City - Franklin and Delaware County | Ohio | Delaware, Franklin |
| Cleveland Electric Illuminating | NPCLEI | AT&T Non-Participating Code for Cleveland Electric Illuminating
Cuyahoga, Lake, Geauga, Medina, and Summit | Ohio | Cuyahoga, Geauga, Lake, Medina, Summit |
| Comcast Ohio | CMCTOH | Columbiana and Mahoning Counties | Ohio | Belmont, Columbiana, Harrison, Jefferson, Mahoning |
| Community Antenna Service., and CAS Communications, LLC dba CAS Cable | CASCAB | Washington County OHIO | Ohio | Washington |
| Community Fiber Solutions | NPCFS | AT&T Non-Participating Code | Ohio | Erie, Miami, Putnam |
| Consolidated Electric | CONSEC | Counties include: Morrow, Richland, Knox, Marion, Delaware, Licking, Union and Franklin | Ohio | Delaware, Franklin, Knox, Licking, Marion, Morrow, Richland, Union |
| Crown Castle | NPCCOH | AT&T Non-Participating Code for Crown Castle | Ohio | Allen, Ashland, Belmont, Butler, Clark, Clinton, Columbiana, Cuyahoga, Defiance, Delaware, Erie, Fairfield, Franklin, Geauga, Greene, Guernsey, Hamilton, Hancock, Hardin, Huron, Lake, Licking, Lorain, Lucas, Madison, Marion, Medina, Mercer, Miami, Montgomery, Muskingum, Pickaway, Portage, Preble, Stark, Summit, Trumbull, Tuscarawas, Union, Van Wert, Warren, Wayne, Wood, Wyandot |
| Dayton Power and Light | NPDYPL | AT&T Non-Participating Code | Ohio | Auglaize, Butler, Champaign, Clark, Darke, Fayette, Greene, Highland, Madison, Mercer, Miami, Montgomery, Pickaway, Preble, Shelby, Warren, Wayne |
| Duke Energy | NPDKEO | AT&T Non-Participating Code for Duke Energy, Ohio | Ohio | Adams, Brown, Butler, Clermont, Clinton, Hamilton, Highland, Montgomery, Preble, Warren |
| ENetworks LLC | NPENTW | AT&T Non-Participating Code for ENetworks
Entire state of Ohio | Ohio | Adams, Allen, Ashland, Ashtabula, Athens, Auglaize, Belmont, Brown, Butler, Carroll, Champaign, Clark, Clermont, Clinton, Columbiana, Coshocton, Crawford, Cuyahoga, Darke, Defiance, Delaware, Erie, Fairfield, Fayette, Franklin, Fulton, Gallia, Geauga, Greene, Guernsey, Hamilton, Hancock, Hardin, Harrison, Henry, Highland, Hocking, Holmes, Huron, Jackson, Jefferson, Knox, Lake, Lawrence, Licking, Logan, Lorain, Lucas, Madison, Mahoning, Marion, Medina, Meigs, Mercer, Miami, Monroe, Montgomery, Morgan, Morrow, Muskingum, Noble, Ottawa, Paulding, Perry, Pickaway, Pike, Portage, Preble, Putnam, Richland, Ross, Sandusky, Scioto, Seneca, Shelby, Stark, Summit, Trumbull, Tuscarawas, Union, Van Wert, Vinton, Warren, Washington, Wayne, Williams, Wood, Wyandot |
| Frontier Communications | NPFRCO | AT&T Non-Participating Code for Frontier Communications | Ohio | Adams, ADMIN, Allen, Ashland, Ashtabula, Athens, Auglaize, Belmont, Brown, Butler, Carroll, Champaign, Clark, Clermont, Clinton, Columbiana, Coshocton, Crawford, Cuyahoga, Darke, Defiance, Delaware, Erie, Fairfield, Fayette, Franklin, Fulton, Gallia, Geauga, Greene, Guernsey, Hamilton, Hancock, Hardin, Harrison, Henry, Highland, Hocking, Holmes, Huron, Jackson, Jefferson, Knox, Lake, Lawrence, Licking, Logan, Lorain, Lucas, Madison, Mahoning, Marion, Medina, Meigs, Mercer, Miami, Monroe, Montgomery, Morgan, Morrow, Muskingum, Noble, Ottawa, Paulding, Perry, Pickaway, Pike, Portage, Preble, Putnam, Richland, Ross, Sandusky, Scioto, Seneca, Shelby, Stark, Summit, Trumbull, Tuscarawas, Union, Van Wert, Vinton, Warren, Washington, Wayne, Williams, Wood, Wyandot |
| FRONTIER POWER COMPANY | NPFRPC | AT&T Non-Participating Code for FRONTIER POWER COMPANY
Coshocton, Tuscarawas | Ohio | Coshocton, Tuscarawas |
| Ft. Jennings Cable | NPFTJC | AT&T Non-Participating Code for Ft. Jennings Cable | Ohio | Allen, Putnam |
| Ft. Jennings Telephone | NPFJTP | AT&T Non-Participating Code | Ohio | Allen, Putnam |
| Guernsey-Muskingum Electric Cooperative | GUEMUS | Serving members in Guernsey, Muskingum, Morgan, Perry, Noble, Licking, Harrison, Coshocton and Tuscarawas counites | Ohio | Coshocton, Guernsey, Harrison, Licking, Morgan, Muskingum, Noble, Perry, Tuscarawas |
| Hancock-Wood Electric Cooperative | HWE | Allen, Hancock, Hardin, Henry, Putnam, Sandusky, Seneca, Wood, and Wyandot Counties | Ohio | Allen, Erie, Hancock, Hardin, Henry, Putnam, Sandusky, Seneca, Wood, Wyandot |
| Independents Fiber Network | NPIFN | AT&T Non-Participating Code
Allen, Hancock, Hardin, Henry, Putnam, Sandusky, Seneca, Wood, and Wyandot Counties | Ohio | Allen, Hancock, Hardin, Henry, Putnam, Sandusky, Seneca, Wyandot |
| INSIGHT COMMUNICATIONS | NPINCO | AT&T Non-Participating Code | Ohio | Delaware, Fairfield, Franklin, Licking, Pickaway |
| Involta LLC | INVOLTA | Mahoning, Columbiana, Trumbull, Cuyahoga | Ohio | Columbiana, Cuyahoga, Mahoning, Trumbull |
| JB-Nets, LLC | JBNETS | Gallia and Lawrence | Ohio | Gallia, Lawrence |
| LICKING RURAL ELECTRIFICATION | NPLKRE | AT&T Non-Participating Code
Licking, Knox, Richland, Ashland, Coshocton, Muskingum, Perry, Delaware and Franklin Counties. | Ohio | Ashland, Coshocton, Delaware, Franklin, Knox, Licking, Muskingum, Perry, Richland |
| Lumos Fiber of Ohio | LUMOSOH | Franklin County | Ohio | Franklin |
| Mediacom Communications – Kendallville | MEDOH1 | Defiance, Paulding | Ohio | Defiance, Paulding |
| Midwest Electric | NPMWEL | AT&T Non-Participating Code for Midwest Electric | Ohio | Allen, Auglaize, Van Wert |
| NBEC/NWOCA | NWOCA | Lucas | Ohio | Lucas |
| New Knoxville Telephone | NPNKNT | AT&T Non-Participating Code for New Knoxville Telephone | Ohio | Auglaize |
| NK Telco | NPNKTL | AT&T Non-Participating Code | Ohio | Auglaize |
| North Central Electric Cooperative | NPNCEC | AT&T Non-Participating Code | Ohio | Crawford, Seneca, Wyandot |
| Ohio Edison Company | NPOHED | AT&T Non-Participating Code for Ohio Edison Company | Ohio | Adams, ADMIN, Allen, Ashland, Ashtabula, Athens, Auglaize, Belmont, Brown, Butler, Carroll, Champaign, Clark, Clermont, Clinton, Columbiana, Coshocton, Crawford, Cuyahoga, Darke, Defiance, Delaware, Erie, Fairfield, Fayette, Franklin, Fulton, Gallia, Geauga, Greene, Guernsey, Hamilton, Hancock, Hardin, Harrison, Henry, Highland, Hocking, Holmes, Huron, Jackson, Jefferson, Knox, Lake, Lawrence, Licking, Logan, Lorain, Lucas, Madison, Mahoning, Marion, Medina, Meigs, Mercer, Miami, Monroe, Montgomery, Morgan, Morrow, Muskingum, Noble, Ottawa, Paulding, Perry, Pickaway, Pike, Portage, Preble, Putnam, Richland, Ross, Sandusky, Scioto, Seneca, Shelby, Stark, Summit, Trumbull, Tuscarawas, Union, Van Wert, Vinton, Warren, Washington, Wayne, Williams, Wood, Wyandot |
| Orrville Utilities | NPORRU | AT&T Non-Participating Code for Orrville Utilities
Wayne | Ohio | Wayne |
| Paulding-Putnam Electric Cooperative | NPPPEC | AT&T Non-Participating Code | Ohio | Allen, Defiance, Paulding, Putnam |
| PIONEER RURAL ELECTRIC COOPERATIVE | NPPIOR | AT&T Non-Participating Code for Pioneer Rural Electric Cooperative
Miami, Champaign, Shelby,Mercer, Auglaize, Logan, Union, Madison, Clark, Montgomery, and Darke | Ohio | Auglaize, Champaign, Clark, Darke, Logan, Madison, Mercer, Miami, Montgomery, Shelby, Union |
| South Central Power Company | NPSCPC | AT&T Non-Participating Code for South Central Power Company
Belmont, Carroll, Harrison, Jefferson, Monroe, Noble, Adams, Brown, Clermont, Fayette, Highland, Pike, Ross, Scioto, Hocking, Fairfield, Pickaway, Madison, Ross, Franklin\ | Ohio | Adams, Belmont, Brown, Carroll, Clermont, Fairfield, Fayette, Franklin, Harrison, Highland, Hocking, Jefferson, Madison, Monroe, Noble, Pickaway, Pike, Ross, Scioto |
| Stark Truss Company | STARK | Stark County | Ohio | Stark |
| Telephone Service Company | TELSCO | | Ohio | Hancock, Montgomery |
| Time Warner Cable (Charter Communications)) | NPTWCH | AT&T Non-Participating Code | Ohio | Adams, ADMIN, Allen, Ashland, Ashtabula, Athens, Auglaize, Belmont, Brown, Butler, Carroll, Champaign, Clark, Clermont, Clinton, Columbiana, Coshocton, Crawford, Cuyahoga, Darke, Defiance, Delaware, Erie, Fairfield, Fayette, Franklin, Fulton, Gallia, Geauga, Greene, Guernsey, Hamilton, Hancock, Hardin, Harrison, Henry, Highland, Hocking, Holmes, Huron, Jackson, Jefferson, Knox, Lake, Lawrence, Licking, Logan, Lorain, Lucas, Madison, Mahoning, Marion, Medina, Meigs, Mercer, Miami, Monroe, Montgomery, Morgan, Morrow, Muskingum, Noble, Ottawa, Paulding, Perry, Pickaway, Pike, Portage, Preble, Putnam, Richland, Ross, Sandusky, Scioto, Seneca, Shelby, Stark, Summit, Trumbull, Tuscarawas, Union, Van Wert, Vinton, Warren, Washington, Wayne, Williams, Wood, Wyandot |
| Toledo Edison | NPTOLE | AT&T Non-Participating Code for Toledo Edison
Defiance, Fulton, Henry, Lucas, Ottawa, Putnam, Sandusky, Seneca, Williams, and Wood | Ohio | Defiance, Fulton, Henry, Lucas, Ottawa, Putnam, Sandusky, Seneca, Williams, Wood |
| Verizon | NPVRZN | AT&T Non-Participating Code for Verizon | Ohio | Adams, ADMIN, Allen, Ashland, Ashtabula, Athens, Auglaize, Belmont, Brown, Butler, Carroll, Champaign, Clark, Clermont, Clinton, Columbiana, Coshocton, Crawford, Cuyahoga, Darke, Defiance, Delaware, Erie, Fairfield, Fayette, Franklin, Fulton, Gallia, Geauga, Greene, Guernsey, Hamilton, Hancock, Hardin, Harrison, Henry, Highland, Hocking, Holmes, Huron, Jackson, Jefferson, Knox, Lake, Lawrence, Licking, Logan, Lorain, Lucas, Madison, Mahoning, Marion, Medina, Meigs, Mercer, Miami, Monroe, Montgomery, Morgan, Morrow, Muskingum, Noble, Ottawa, Paulding, Perry, Pickaway, Pike, Portage, Preble, Putnam, Richland, Ross, Sandusky, Scioto, Seneca, Shelby, Stark, Summit, Trumbull, Tuscarawas, Union, Van Wert, Vinton, Warren, Washington, Wayne, Williams, Wood, Wyandot |
| Vero Fiber Networks | VEROOH | Clinton | Ohio | Clinton |
| Village of Ripley | NPVRIP | AT&T Non-Participating Code for Village of Ripley
Brown | Ohio | Brown |
| Village of Yellow Springs | NPVYSP | AT&T Non-Participating Code for Village of Yellow Springs
Greene | Ohio | Greene |
| Washington Electric Cooperative, Inc. | WHECOH | Washington Electric Cooperative, Inc. | Ohio | Athens, Guernsey, Monroe, Morgan, Noble, Washington |
| Windstream Western Reserve Incorporated | NPWDST | AT&T Non-Participating Code for Windstream Western Reserve Incorporated | Ohio | Adams, ADMIN, Allen, Ashland, Ashtabula, Athens, Auglaize, Belmont, Brown, Butler, Carroll, Champaign, Clark, Clermont, Clinton, Columbiana, Coshocton, Crawford, Cuyahoga, Darke, Defiance, Delaware, Erie, Fairfield, Fayette, Franklin, Fulton, Gallia, Geauga, Greene, Guernsey, Hamilton, Hancock, Hardin, Harrison, Henry, Highland, Hocking, Holmes, Huron, Jackson, Jefferson, Knox, Lake, Lawrence, Licking, Logan, Lorain, Lucas, Madison, Mahoning, Marion, Medina, Meigs, Mercer, Miami, Monroe, Montgomery, Morgan, Morrow, Muskingum, Noble, Ottawa, Paulding, Perry, Pickaway, Pike, Portage, Preble, Putnam, Richland, Ross, Sandusky, Scioto, Seneca, Shelby, Stark, Summit, Trumbull, Tuscarawas, Union, Van Wert, Vinton, Warren, Washington, Wayne, Williams, Wood, Wyandot |