The Suffolk County Department of Fire, Rescue, and Emergency Services has divided the county into 10 divisions. Each division is based upon town boundaries, starting from the west and moving east. The divisions are configured as follows:

Division Town

1st Babylon

2nd Huntington

3rd Islip

4th Smithtown

5th Brookhaven

5A North Brookhaven (North of Route 25A)

6th Riverhead

7th Southampton

8th Southold

9th East Hampton

10th  Shelter Island

The radio frequencies used by each department are also assigned by division with some exceptions. Some departments have chosen to use their own "private" frequencies rather than the division frequency. Below are the Countywide frequencies and some of the frequencies currently in use by individual departments.

45.880 Intercounty Mutual Aide

46.300 Fireground (5 watts Max)

46.340 1,2,8,9,10th Divisions

46.360 5A Division

46.380 Countywide Mutual Aide

46.400 5th Division

46.420 2nd Division

46.440 3rd & 4th Divisions

46.460 Countywide Dispatch (F-2)

46.480 6th & 7th Divisions

154.415 Medcom: Ambulance to Medcom (F-1)

155.175 Ambulance "B" Channel

155.280 Medcom Ambulance Dispatch

Fire & Rescue Special Frequencies

45.200       Amityville Village Fire Department

45.320       East Farmingdale Fire Co. F1 

471.250     Bay Shore Fire Department F1

476.800     Brentwood Fire Department F1

460.100     Central Islip Fire  F-1

45.820       Selden Fire Department

45.940       Holbrook Fire Department F1

460.55      North Patchogue Fire Department (Dispatch)

154.145     Coram Fire Department F1

154.160     Dix Hills Fire Department F1

453.300    West Sayville Fire Department F1

460.550    North Patchogue Fire Department F1

460.600    Terryville Fire Department

460.750    Ocean Beach Fire Department

463.450    Patchogue Ambulance

470.337    Setauket Fire Department

470.537    Huntington Manor Fire Department F1

470.837    East Islip Fire Department F1

460.275    Islip Fire Department F1

471.087    Islip Terrace Fire Department F1

471.287    Melville Fire Department

476.862    Centereach Fire Department F1

460.037    West Islip Fire Department F1

SUFFOLK 800mhz

1360       Suffolk Fire Rescue

2544       Suffolk Fire Rescue F2

2736       North Shore Paramedics

52976     Suffolk Police 3rd Pct.

48016     Countywide South

60848     Suffolk Police Command Band

Below are the signals used by all Suffolk County Fire Departments and Ambulance Corps:

Signal Message

1 Disaster (repeat 3 times)
2 Units Responding
3 Additional Help Needed
4 Under Control / Proceed With Caution
5 Return to Base
6 Leaving Unit Unattended
7 Returned to Unit
8 Refreshments
9 Standby 
10 Police
10A Arson (Specify Priority)
11 Utility Company (Specify Type)
12 Brush Fire
13 Structure Fire
14 Car Fire
15 Drill (Specify Type)
16 Ambulance / Rescue Call
17 Unit Broke Down Unable to Respond
18 Enroute to Hospital (Specify)
19 Radio Test
20 Received & Acknowledged
21 Arrived at Location
22 Incident Location
23 Miscellaneous Alarm
24 Mutual Aid (specify)
25 Dismiss Members
26 Boat Fire
27 Plane Crash or Fire
28 Ready for Service
29 Activate Traffic Light
34 Call Headquarters
35 Working Fire
36 Out of District
37 Back in District 
38 Out of Service
39 Request For Fire Police
40 Request For Fire Marshall
50 D.O.A.
51 Bleeding/Lacerations
52 Respiratory Difficulties
53 Burns
54 Poisoning
55 Heart/Chest Pains
56 Head Injury
57 Maternity
58 Fractures
59 Routine Transport
60 Mass Casualty Incident
61 Doctor Requested to Scene
62 Request Crisis Management Team
63 Clergy Requested to Scene
64 Clergy Requested to Hospital
99 Civil Disturbance 
100 Scene Emergency (Sound Air Horns/Evacuate Area)


Signal 15 & Signal 19 Codes

Code Message

Code 1 Department Drill/Meeting
Code 2 Company Drill/Meeting
Code 3 Officers Drill/Meeting
Code 4 Commissioners Meeting
Code 5 Drill Team Drill/Meeting
Code 6 Parade (Specify Uniform)
Code 7 Fund Drive
Code 8 Picnic/Outing/Dinner
Code 9 Sports Activity 
Code 10 Funeral Service
Code 11 Driver Training


Suffolk County Arson Priorities

Priority Situation

Priority 1 Any Fire Involving Serious Injury or Death
Priority 2 Occupied Commercial Building Fire
Priority 3 Occupied Residential Building Fire
Priority 4 Vacant Commercial Building Fire
Priority 5 Vacant Residential Building Fire
Priority 6 Motor Vehicle Fire

*Occupied means the building was being used, not that someone was inside at the time of the fire.