| 21021 | 521d | D | 31 FD EAST | Fire Dispatch East | Fire Dispatch |
| 21022 | 521e | D | 31 FD WEST | Fire Dispatch West | Fire Dispatch |
| 21023 | 521f | D | 31 FD CENT | Fire Dispatch Central | Fire Dispatch |
| 21024 | 5220 | D | 31 VAL FD | Valley Fire Dispatch | Fire Dispatch |
| 21028 | 5224 | D | 31 ALERT WEST | Fire Alerting West | Fire Dispatch |
| 21029 | 5225 | D | 31 FG 4 | Fire Ground 4 | Fire-Tac |
| 21030 | 5226 | D | 31 FG 5 | Fire Ground 5 | Fire-Tac |
| 21031 | 5227 | D | 31 FG 6 | Fire Ground 6 | Fire-Tac |
| 21032 | 5228 | D | 31 FG 7 | Fire Ground 7 | Fire-Tac |
| 21033 | 5229 | D | 31 FG 8 | Fire Ground 8 | Fire-Tac |
| 21034 | 522a | D | 31 FG 9 | Fire Ground 9 | Fire-Tac |
| 21035 | 522b | D | 31 FG 10 | Fire Ground 10 | Fire-Tac |
| 21036 | 522c | D | 31 MAYDY 1 | MAYDAY Emergency | Emergency Ops |
| 21038 | 522e | D | 31 ALERT EAST | Fire Alerting East | Fire Dispatch |
| 21039 | 522f | D | 31 FG 14 | Fire Ground 14 | Fire-Tac |
| 21040 | 5230 | D | 31 FG 15 | Fire Ground 15 | Fire-Tac |
| 21041 | 5231 | D | 31 FG 16 | Fire Ground 16 | Fire-Tac |
| 21042 | 5232 | D | 31 FG 17 | Fire Ground 17 | Fire-Tac |
| 21043 | 5233 | D | 31 FG 18 | Fire Ground 18 | Fire-Tac |
| 21044 | 5234 | D | 31 FG 19 | Fire Ground 19 | Fire-Tac |
| 21045 | 5235 | D | 31 FG 20 | Fire Ground 20 | Fire-Tac |
| 21046 | 5236 | D | 31 FG 21 | Fire Ground 21 | Fire-Tac |
| 21047 | 5237 | D | 31 FG 22 | Fire Ground 22 | Fire-Tac |
| 21048 | 5238 | D | 31 STORM W | Storm Response West | Fire-Tac |
| 21049 | 5239 | D | 31 STORM E | Storm Response East | Fire-Tac |
| 21051 | 523b | D | 31 FG 26 | Fireground 26 | Fire-Tac |
| 21052 | 523c | D | 31 MAYDY 2 | MAYDAY Emergency | Emergency Ops |
| 21053 | 523d | D | 31 FD ADMIN | Fire Administration | Fire-Talk |
| 21054 | 523e | D | 31 HOSPITAL | Hospital Emergency Net | Hospital |
| 21137 | 5291 | D | 31 AMBR FD | Amberley Village Fire | Fire-Talk |
| 21138 | 5292 | D | 31 AMBR 3 | Amberley Village 3 | Fire-Talk |
| 21139 | 5293 | D | 31 ARC 1 | 31 American Red Cross 1 | Emergency Ops |
| 21140 | 5294 | D | 31 ARC 2 | 31 American Red Cross 2 | Emergency Ops |
| 21141 | 5295 | D | 31 ARC 3 | 31 American Red Cross 3 | Emergency Ops |
| 21142 | 5296 | D | 31 ANDR FD | Anderson Township Fire | Fire-Talk |
| 21143 | 5297 | D | 31 ANDR FD2 | Anderson Township Fire 2 | Fire-Talk |
| 21149 | 529d | D | 31 ARLN FD | Arlington Heights Fire (Defunct - Reserved for future use) | Fire-Talk |
| 21158 | 52a6 | D | 31 BLUE FD | Blue Ash Fire | Fire-Talk |
| 21167 | 52af | D | 31 CHEV FD | Cheviot Fire | Fire-Talk |
| 21180 | 52bc | D | 31 CLEV FD | Cleves Fire | Fire-Talk |
| 21183 | 52bf | D | 31 COTP FD | Colerain Township Fire | Fire-Talk |
| 21197 | 52cd | D | 31 CROS FD | Crosby Township Fire | Fire-Talk |
| 21198 | 52ce | D | 31 CROS ALL | Crosby Township All Call | Fire Dispatch |
| 21199 | 52cf | D | 31 CROS OFF | Crosby Township | Multi-Talk |
| 21200 | 52d0 | D | 31 DPSJ FD | Deer Park-Silverton Joint Fire | Fire-Talk |
| 21204 | 52d4 | D | 31 DLHI FD | Delhi Fire | Fire-Talk |
| 21210 | 52da | D | 31 ELMW FD | Elmwood Place Fire | Fire-Talk |
| 21226 | 52ea | D | 31 EVEN FD | Evendale Fire | Fire-Talk |
| 21228 | 52ec | D | 31HCFD 1 | HCFD 1 | Fire-Talk |
| 21229 | 52ed | D | 31HCFD 2 | HCFD 2 | Fire-Talk |
| 21230 | 52ee | D | 31HCFD 3 | HCFD 3 | Fire-Talk |
| 21233 | 52f1 | D | 31 LMFR FD | Little Miami Fire Rescue | Fire-Talk |
| 21235 | 52f3 | D | 31 FRPK FD | Forest Park Fire | Fire-Talk |
| 21239 | 52f7 | D | 31 GLEN FD | Glendale Fire | Fire-Talk |
| 21241 | 52f9 | D | 31 GOLF FD | Golf Manor Fire | Fire-Talk |
| 21243 | 52fb | D | 31 GCHM CMD | Greater Cincinnati Hazmat Command | Fire-Tac |
| 21244 | 52fc | D | 31 GCHM TAC | Greater Cincinnati Hazmat Tactical | Fire-Tac |
| 21245 | 52fd | D | 31 GCHM ALL | Greater Cincinnati HAZMAT All | Fire-Tac |
| 21247 | 52ff | D | 31 GRTP FD | Green Township Fire | Fire-Talk |
| 21250 | 5302 | D | 31 GREN FD | Greenhills Fire | Fire-Talk |
| 21253 | 5305 | D | 31 HARR FD | Harrison Fire | Fire-Talk |
| 21268 | 5314 | D | 31 LINC FD | Lincoln Heights Fire | Fire-Talk |
| 21271 | 5317 | D | 31 LOCK FD | Lockland Fire | Fire-Talk |
| 21278 | 531e | D | 31 MDIH FD | Madera-Indian Hill Fire | Fire-Talk |
| 21280 | 5320 | D | 31 MRMT FD | Mariemont Fire | Fire-Talk |
| 21292 | 532c | D | 31 MIAM FD | Miami Township Fire | Fire-Talk |
| 21296 | 5330 | D | 31 MILF FD 1 | Milford Fire | Fire-Talk |
| 21297 | 5331 | D | 31 MILF FD 2 | Milford Fire | Fire-Talk |
| 21299 | 5333 | D | 31 MONT FD | Montgomery Fire | Fire-Talk |
| 21303 | 5337 | D | 31 MTHL FD | Mount Healthy Fire | Fire-Talk |
| 21312 | 5340 | D | 31 NCHL FD | North College Hill Fire | Fire-Talk |
| 21333 | 5355 | D | 31 READ FD | Reading Fire | Fire-Talk |
| 21336 | 5358 | D | 31 SHRN FD | Sharonville Fire | Fire-Talk |
| 21373 | 537d | D | 31 SPDL FD | Springdale Fire | Fire-Talk |
| 21376 | 5380 | D | 31 SPTP FD | Springfield Township Fire | Fire-Talk |
| 21379 | 5383 | D | 31 STBN FD | St. Bernard Fire | Fire-Talk |
| 21385 | 5389 | D | 31 SYCM FD | Sycamore Township Fire | Fire-Talk |
| 21392 | 5390 | D | 31 TERR FD | Terrance Park Fire | Fire-Talk |
| 21393 | 5391 | D | 31 MIAMEAST | Miami East Fire | Fire-Talk |
| 21397 | 5395 | D | 31 VAL FD | Valley Fire | Fire-Talk |
| 21400 | 5398 | D | 31 WWTR FD | Whitewater Township Fire 1 | Fire-Talk |
| 21401 | 5399 | D | 31 WWTR FD2 | Whitewater Township Fire 2 | Fire-Talk |
| 21402 | 539a | D | 31 WWTR FD3 | Whitewater Township Fire 3 | Fire-Talk |
| 21404 | 539c | D | 31 WOOD FD | Woodlawn Fire | Fire-Talk |
| 21407 | 539f | D | 31 WYOM FD | Wyoming Fire | Fire-Talk |
| 21437 | 53bd | D | 31 MDC EAST | Hamilton County Fire MDC East | Data |
| 21438 | 53be | D | 31 MDC WEST | Hamilton County Fire MDC West | Data |
| 21517 | 540d | D | 31 MUTE | Used for Activation of the Hospital Radios | Data |
| 21518 | 540e | D | 31 HOSP ALERT | Used for voice announcements to all Hospitals | Hospital |
| 21561 | 5439 | D | 31 MILF ALERT | Milford Fire/EMS Alert | Multi-Dispatch |
| 59543 | e897 | D | THC | The Health Collaborative | Hospital |
| 59880 | e9e8 | D | HOS-3101 | Bethesda North Hospital | Hospital |
| 59883 | e9eb | D | HOS-3102 | Cincinnati Childrens Hospital | Hospital |
| 59892 | e9f4 | D | HOS-3104 | TriHealth - Good Samaritan Hospital (Cincinnati) | Hospital |
| 59896 | e9f8 | D | HOS-3105 | Mercy Health - West Hospital | Hospital |
| 59901 | e9fd | D | HOS-3107 | Mercy Health Anderson Hospital | Hospital |
| 59903 | e9ff | D | HOS-3108 | The Christ Hospital (Cincinnati) | Hospital |
| 59906 | ea02 | D | HOS-3109 | The Jewish Hospital (Cincinnati) | Hospital |
| 59910 | ea06 | D | HOS-3110 | University of Cincinnati Medical Center | Hospital |
| 59915 | ea0b | D | HOS-3106 | Mercy Health - Western Hills Medical Center | Hospital |
| 59917 | ea0d | D | HOS-3112 | Shriners Hospital (Cincinnati) | Hospital |
| 59920 | ea10 | D | HOS-3113 | Trihealth Bethesda-Butler Hospital (Hamilton) | Hospital |