| Frequency | System | FleetID | User | City | State | Sys_Type | Notes | Additional Notes |
| 866.78750 | Primary | Greenwich | CT | Motorola Type II SmartZone | ** | ** | ||
| 867.06250 | Primary | ****GREENWICH FIRE TALKGR**** | Greenwich | CT | Motorola Type II SmartZone | ** | ** | |
| 867.45000 | Primary | 784 | DISPATCH | Greenwich | CT | Motorola Type II SmartZone | ** | ** |
| 868.15000 | Primary | 816 | ADMINISTRATION | Greenwich | CT | Motorola Type II SmartZone | ** | ** |
| 868.40000 | Primary | 848 | FIREGROUND 1 FIRE-TAC | Greenwich | CT | Motorola Type II SmartZone | ** | ** |
| 868.70000 | Primary | Greenwich | CT | Motorola Type II SmartZone | ** | ** | ||
| 880 | FIREGROUND 2 FIRE-TAC | ** | ** | |||||
| 912 | FIREGROUND 3 FIRE-TAC | ** | ** | |||||
| 944 | FIREGROUND 4 FIRE-TAC | ** | ** | |||||
| 976 | FIRE MARSHAL | ** | ** | |||||
| 1008 | STATIONS | ** | ** | |||||
| 1264 | FIRE POLICE | ** | ** | |||||
| ** | ** | |||||||
| ****GREENWICH FIRE DIGITAL TALKGR**** | ** | ** | ||||||
| 14736 | FIRE DISP FIRE DISPATCH FIRE DISPATCH | ** | ** | |||||
| 14768 | FIRE ADMIN FIRE ADMINISTRATION FIRE-TAC | ** | ** | |||||
| 14800 | FIRE 1 FIRE 1 FIRE-TAC | ** | ** | |||||
| 14832 | FIRE 2 FIRE 2 FIRE-TAC | ** | ** | |||||
| 14864 | FIRE 3 FIRE 3 FIRE-TAC | ** | ** | |||||
| 14896 | FIRE 4 FIRE 4 FIRE-TAC | ** | ** | |||||
| 14928 | FIRE MARSHAL FIRE MARSHALS FIRE-TAC | ** | ** | |||||
| 14960 | FIRE COMMAND FIRE COMMAND FIRE-TAC | ** | ** | |||||
| ** | ** | |||||||
| ****GREENWICH POLICE TALKGR**** | ** | ** | ||||||
| 80 | DISPATCH | ** | ** | |||||
| 112 | DETECTIVES | ** | ** | |||||
| 144 | SPECIAL RESPONSE UNIT | ** | ** | |||||
| 176 | MARINE DIVISION | ** | ** | |||||
| 208 | PATROL 2 | ** | ** | |||||
| 272 | ADMINISTRATION | ** | ** | |||||
| 304 | NARC 1 | ** | ** | |||||
| 336 | NARC 2 | ** | ** | |||||
| 400 | PRIVATE 2 | ** | ** | |||||
| 464 | PARK RANGERS | ** | ** | |||||
| 14256 | DETECTIVES | ** | ** | |||||
| ** | ** | |||||||
| ****GRENWICH EMS TALKGR**** | ** | ** | ||||||
| 240 | DISPATCH | ** | ** | |||||
| 14192 | EMS DISP EMS DISPATCH EMS DISPATCH | ** | ** | |||||
| ** | ** | |||||||
| ****MARINE DIVISION TALKGR**** | ** | ** | ||||||
| 2000 | CAPTAIN ISLAND | ** | ** | |||||
| 2096 | ISLAND BEACH | ** | ** | |||||
| 2128 | LIFEGUARDS | ** | ** | |||||
| 2160 | FERRY BOATS | ** | ** | |||||
| ** | ** | |||||||
| ****PUBLIC SERVICES TALKGR**** | ** | ** | ||||||
| 1776 | PARKING COMMISSION | ** | ** | |||||
| 2704 | NATHANIEL WITHERAL SENIOR CENTER | ** | ** | |||||
| 2928 | BOARD OF HEALTH | ** | ** | |||||
| ** | ** | |||||||
| ****PUBLIC WORKS TALKGR**** | ** | ** | ||||||
| 1488 | STREET DEPARTMENT 1 | ** | ** | |||||
| 1520 | SEWER DEPARTMENT | ** | ** | |||||
| 1552 | TRAFFIC DIVISION | ** | ** | |||||
| 1584 | BUILDING MAINTENANCE 1 | ** | ** | |||||
| 1616 | FLEET MAINTENANCE | ** | ** | |||||
| 1648 | CONSTRUCTION | ** | ** | |||||
| 1680 | STREET DEPARTMENT 2 | ** | ** | |||||
| 1712 | BUILDING MAINTENANCE 2 | ** | ** | |||||
| 1744 | ENGINEERING | ** | ** | |||||
| 2032 | GROUNDS | ** | ** | |||||
| 2064 | FORESTRY DIVISION | ** | ** | |||||
| 2192 | PARKS & REC. ADMIN. | ** | ** | |||||
| 2448 | PARKS DEPARTMENT | ** | ** | |||||
| ** | ** | |||||||
| ****RED CROSS TALKGR**** | ** | ** | ||||||
| 1360 | ADMINISTRATION | ** | ** | |||||
| 1392 | CALL-A-RIDE | ** | ** | |||||
| 1424 | OPERATIONS | ** | ** | |||||
| ** | ** | |||||||
| ****SYSTEMWIDE TALKGR**** | ** | ** | ||||||
| 368 | RADIO REPAIR | ** | ** | |||||
| 752 | ANNOUNCEMENTS | ** | ** | |||||
| 3152 | CITYWIDE | ** | ** | |||||
| 3376 | CITYWIDE ADMINISTRATION | ** | ** |