| 33 | 00-041 | A | HAHERN Patch | Patch to 155.34 MHz (HAHERN, used for Life Flight) | Interop |
| 89 | 00-111 | A | CommLink | Communication between Cypress Creek Communications Center, Cy-Fair, Northwest EMS and MCHD Dispatchers | Interop |
| 95 | 00-117 | A | CyCreek EMS | Link to Cypress Creek EMS primary (COMM1) | EMS Dispatch |
| 97 | 00-121 | D | ConroeRMC ER | Conroe Regional Medical Center ER | Hospital |
| 98 | 00-122 | D | Woodlands ER | Woodlands Memorial ER | Hospital |
| 99 | 00-123 | A | Kingwood ER | Kingwood Medical Center ER | Hospital |
| 100 | 00-124 | D | St Lukes ER | St. Luke ER Ch. 1 | Hospital |
| 101 | 00-125 | D | Tomball ER | Tomball Regional Hospital | Hospital |
| 113 | 00-141 | D | MHEC West | EMS to Memorial Hermann Emergency Care Freestanding ER (Woodlands) | Hospital |
| 115 | 00-143 | D | TriCntyBH | EMS to Tri-County Behavioral Healthcare Conroe | Hospital |
| 265 | 02-011 | A | MCHD Primary | MCHD EMS-1 (link to 155.325 MHz and TG 2100 on TxWARN P25 System)) | EMS Dispatch |
| 266 | 02-012 | M | MCHD Second | MCHD EMS-2 | EMS Dispatch |
| 267 | 02-013 | A | MCHD Tac 1 | MCHD EMS-TAC 1 | EMS-Tac |
| 268 | 02-014 | A | MCHD Tac 2 | MCHD EMS-TAC 2 | EMS-Tac |
| 269 | 02-015 | A | MCHD Tac 3 | MCHD EMS-TAC 3 | EMS-Tac |
| 270 | 02-016 | A | MCHD Tac 4 | MCHD EMS-TAC 4 | EMS-Tac |
| 273 | 02-021 | A | MCHD Med 1 | MCHD EMS-Med 1 (Medical Director) | EMS-Tac |
| 275 | 02-023 | A | EMS Multi | EMS Multi | Interop |
| 278 | 02-026 | A | MCEMS Talk | MCHD EMS-Talk | EMS-Talk |
| 284 | 02-034 | A | MCHD Supervs | MCHD Supervisors | EMS-Tac |
| 1153 | 09-001 | A | PHI Operatns | PHI AirMed | EMS-Tac |
| 1605 | 12-085 | A | MCHD Tac 5 | MCHD EMS-TAC 5 | EMS-Tac |
| 1606 | 12-086 | A | MCHD Tac 6 | MCHD EMS-TAC 6 | EMS-Tac |
