| Greater Lansing Area Public Safety | Ingham | Public Safety | 336 |
| Detroit Police Dispatch | Wayne | Public Safety | 214 |
| Jackson County Public Safety | Jackson | Public Safety | 132 |
| Monroe County Sheriff, Monroe City Police, Fire and EMS Dispatch | Monroe | Public Safety | 114 |
| Isabella County Police and Fire | Isabella | Public Safety | 80 |
| Muskegon County Police Dispatch | Muskegon | Public Safety | 72 |
| Ionia County Sheriff, Fire and EMS | Ionia | Public Safety | 71 |
| Eastern Upper Peninsula Public Safety | Chippewa | Public Safety | 68 |
| St. Clair County Police, Fire and EMS Simulcast | St. Clair | Public Safety | 67 |
| Washtenaw County Metro Police & Fire | Washtenaw | Public Safety | 56 |
| Wayne County Public Safety | Wayne | Public Safety | 52 |
| Marquette County Public Safety Dispatch | Marquette | Public Safety | 52 |
| Delta County Law, Fire and EMS | Delta | Public Safety | 48 |
| Livingston County Police, Fire and EMS | Livingston | Public Safety | 47 |
| St. Joseph County Sheriff, Police, Fire and EMS | St. Joseph | Public Safety | 45 |
| Downriver Public Safety | Wayne | Public Safety | 42 |
| North Central Michigan Counties Sheriff, Police, Fire, MSP, DNR and EMS | Alcona | Public Safety | 38 |
| Lenawee County Police and Fire | Jackson | Public Safety | 38 |
| Detroit Fire | Wayne | Public Safety | 37 |
| Barry County Sheriff, Fire, and EMS | Barry | Public Safety | 33 |
| Ottawa County Public Safety - Digital | Ottawa | Public Safety | 33 |
| Shiawassee County Police Dispatch | Shiawassee | Public Safety | 31 |
| Gratiot County Police and Fire | Gratiot | Public Safety | 29 |
| Traverse City and Grand Traverse County District 7 MSP Digital Fire / Police | Grand Traverse | Public Safety | 27 |
| Hillsdale County Public Safety | Hillsdale | Public Safety | 27 |
| Otsego County Sheriff, Gaylord Police, MSP District 7 | Otsego | Public Safety | 27 |
| Straits Area Public Safety | Charlevoix | Public Safety | 26 |
| Allegan County Police, Fire and EMS - Conventional / Digital | Allegan | Public Safety | 25 |
| Kent County Fire and EMS | Kent | Public Safety | 24 |
| Houghton and Keweenaw Counties Police, Fire and EMS | Houghton | Public Safety | 22 |
| Kalamazoo County Fire and MSP District 5 | Kalamazoo | Public Safety | 21 |
| Saginaw County, MI Police, Fire, and EMS | Saginaw | Public Safety | 19 |
| Westland-Garden City Police and Fire | Wayne | Public Safety | 18 |
| Montcalm Fire & EMS | Montcalm | Public Safety | 17 |
| Warren Police and Fire, Center Line Public Safety | Macomb | Public Safety | 17 |
| Manistee County Public Safety | Manistee | Public Safety | 14 |
| Emmet County Police Dispatch | Emmet | Public Safety | 13 |
| Gogebic County Fire and EMS | Gogebic | Public Safety | 13 |
| Detroit Public Safety/Police & Fire Dispatch | Wayne | Public Safety | 12 |
| Muskegon County Police, Fire, and EMS | Muskegon | Public Safety | 12 |
| Berrien County Met North Public Safety | Berrien | Public Safety | 12 |
| Huron County Fire and EMS | Huron | Public Safety | 11 |
| Van Buren County Fire Dispatch - West | Van Buren | Public Safety | 10 |
| Shiawassee County Fire and EMS Dispatch | Shiawassee | Public Safety | 10 |
| Grosse Pointes and Harper Woods Police and Fire | Wayne | Public Safety | 8 |
| Clare County Police and Fire | Clare | Public Safety | 8 |
| Oscoda County and Surrounding Area Police, Fire, and EMS | Oscoda | Public Safety | 8 |
| Genesee County EMS | Genesee | Public Safety | 8 |
| Dearborn Police and Fire | Wayne | Public Safety | 7 |
| Branch County Public Safety | Branch | Public Safety | 7 |
| Presque Isle Public Safety | Presque Isle | Public Safety | 7 |
| Otsego County EMS | Otsego | Public Safety | 7 |
| Jackson County and Hillsdale County Public Safety | Hillsdale | Public Safety | 7 |
| Cheboygan County Public Safety | Cheboygan | Public Safety | 6 |
| Genesee County Fire | Genesee | Public Safety | 6 |
| Menominee County Public Safety | Menominee | Public Safety | 5 |
| Muskegon County Fire Dispatch | Muskegon | Public Safety | 5 |
| Oceana County Fire and EMS Dispatch | Oceana | Public Safety | 5 |
| Lapeer County Fire Dispatch - Analog | Lapeer | Public Safety | 4 |
| Lapeer County and Surrounding Townships Fire/EMS Dispatch | Lapeer | Public Safety | 4 |
| Oakland County Fire/EMS MABAS 3201 (North) - Dispatch/Tac/Talk (P25) | Oakland | Public Safety | 4 |
| Grand Rapids Area Police and Fire Dispatch | Kent | Public Safety | 4 |
| Van Buren County Fire Dispatch - East | Van Buren | Public Safety | 4 |
| Fenton City Police and Fire | Genesee | Public Safety | 4 |
| Flint City Fire | Genesee | Public Safety | 4 |
| Newaygo County Public Safety | Newaygo | Public Safety | 4 |
| Bay County Public Safety, MSP, DNR | Bay | Public Safety | 3 |
| Berrien County Law, Fire and Ambulance | Berrien | Public Safety | 3 |
| Cass County Public Safety | Cass | Public Safety | 3 |
| Charlevoix County Public Safety | Charlevoix | Public Safety | 3 |
| Sault Sainte Marie Marine Ch-12 (Soo Traffic) | Chippewa | Marine | 3 |
| Mackinac County Public Safety | Mackinac | Public Safety | 3 |
| Ingham Out-County Fire and EMS | Ingham | Public Safety | 3 |
| Ingham County Fire and EMS | Ingham | Public Safety | 3 |
| Wexford County Police Fire Dispatch | Wexford | Public Safety | 2 |
| N8ZVZ Amateur Radio Repeater | Wayne | Amateur Radio | 2 |
| Oakland County Fire/EMS MABAS 3202 (South/Oakway) - Dispatch/Tac/Talk (P25) | Oakland | Public Safety | 2 |
| Romulus-Huron Twp Police & Fire | Wayne | Public Safety | 2 |
| Detroit EMS Dispatch | Wayne | Public Safety | 2 |
| Sagola Township Fire and EMS | Dickinson | Public Safety | 2 |
| Eaton County Public Service | Eaton | Public Safety | 2 |
| Clinton Twp Police - Fire Dispatch | Macomb | Public Safety | 2 |
| Sanilac County Public Safety | Sanilac | Public Safety | 2 |
| Ottawa County Fire, EMS and EMD | Ottawa | Public Safety | 2 |
| Royal Oak Fire | Oakland | Public Safety | 1 |
| Troy Fire Department | Oakland | Public Safety | 1 |
| Otsego County Fire Dispatch - Analog | Otsego | Public Safety | 1 |
| Kalamazoo City, Township and County Fire Dispatch | Kalamazoo | Public Safety | 1 |
| Otsego County Fire - Digital | Otsego | Public Safety | 1 |
| Amasa HematiteFD | Iron | Public Safety | 1 |
| Crystal Falls Fire | Iron | Public Safety | 1 |
| West Iron Fire | Iron | Public Safety | 1 |
| Muskegon County EMS Dispatch (ProMed, White Lake, Med Paging) | Muskegon | Public Safety | 1 |
| Iron Mountain Fire | Dickinson | Public Safety | 1 |
| Tri Township Ambulance Authority | Dickinson | Public Safety | 1 |
| Seale RP | Van Buren | Public Safety | 1 |
| Ingham and Clinton Public Safety | Clinton | Public Safety | 1 |
| Clinton, Gratiot and Montcalm County Fire/EMS | Clinton | Public Safety | 1 |
| Stephenson VFD | Menominee | Public Safety | 1 |
| CSX West Michigan | Allegan | Rail | 1 |