Commonwealth Of Massachusetts Interoperable Radio System (CoMIRS)

System Name: Commonwealth Of Massachusetts Interoperable Radio System (CoMIRS)
Location: Regional, MA
County: 8 Counties
System Type: Project 25 Phase II
System Voice: APCO-25 Common Air Interface Exclusive
System ID: Sysid: D14 WACN: BEE00
Last Updated: February 9, 2025, 17:52 pm UTC   [Added Talkgroup to: Boston (2945 Boston Rangers Maintenance)]
System Notes

Massachusetts State Police operate two radio systems, an analog trunked system, heard east of the Connecticut River, and Mount Greylock, and a newly implemented digital system, which is slowly growing to cover the entire commonwealth.

Cities like Cambridge, Worcester, Boston, and special systems such as MassPort can only be heard on their respective closest systems

Talkgroups which begin with "6 - - - -" (i.e. 65102), and are five digits, are dynamic talkgroups that are assigned when another linked system's user has connected with the CoMIRS radio system. They are never permanent, despite how frequently they may occur.

Sites and Frequencies

Red (c) are control channel capable frequencies
RFSS Site Name County Freqs
1 (1) 024 (18) Western Mass North Simulcast Berkshire 851.175852.2125852.4375852.5375c853.100c853.125c853.3375c
1 (1) 025 (19) Western Mass South Simulcast Berkshire 851.425852.475c852.6625c852.975c853.900c  
1 (1) 028 (1C) Stockbridge Berkshire 856.4875858.2375c858.4875859.2375c859.4875  
1 (1) 030 (1E) Williamstown Berkshire 855.4875c856.0375c856.7125857.4875858.2375858.9875859.4875
1 (1) 031 (1F) Sandisfield Berkshire 854.1375854.6875856.5125857.6125c858.5375c  
1 (1) 032 (20) Tolland Berkshire 854.0875856.0125857.6375858.6125c859.0125c  
1 (1) 026 (1A) Warwick Franklin 851.200851.375c852.3125c852.475853.475c853.6375c 
1 (1) 027 (1B) Wilbraham Hampden 851.200851.375852.3125c852.475c853.475c853.6375c 
1 (1) 033 (21) Chester Hampden 854.1625854.4125c854.7375c857.5625c859.0625c  
1 (1) 070 (46) Ludlow HOC Hampden 852.1125c852.9375c853.4125c853.8375c854.6875  
1 (1) 029 (1D) Williamsburg Hampshire 854.2375855.5375c857.7125c858.4875c859.7625c  
1 (1) 124 (7C) MCI-Framingham Middlesex 851.100851.825852.1125852.375853.325c  
2 (2) 001 (1) Cambridge Simulcast Middlesex 851.125851.325851.625852.300852.6875853.7875856.3625
    856.7875857.2875c857.7875c858.7875c859.7875c  
1 (1) 071 (47) MCI-Cedar Junction Norfolk 851.075c852.0625c852.6125852.6875853.1875853.550853.8875
1 (1) 035 (23) Logan Airport/Massport Suffolk 854.0125855.0625855.5875855.8125856.4375856.8125857.0125c
    857.4375c857.8125858.2625858.4375c858.8125859.2625859.4375c
    859.8125      
2 (2) 002 (2) Metro Boston Overlay Simulcast Suffolk 769.20625769.93125770.15625770.45625770.90625770.95625773.05625
    773.28125773.53125c773.58125c774.33125c774.58125c  
1 (1) 036 (24) Worcester Simulcast Worcester 854.1375854.2125854.4625854.8875855.7125855.7375855.9625
    856.2625856.5125c856.8375c857.2625c858.1375c  

Talkgroups

Statewide is used by the Airwing and Marine units.

 B8 is the old E3 MassPike Patrol

H8 is the former E1 MassPike Patrol
H9 is the former E4 MassPike Tunnel Patrol

Local Public Safety (LPS)
Department of Fire Services
Emergency Management (MEMA)
Environmental Police
Water Resources Authority
Department of Conservation and Recreation (DCR)
Massport/Logan International Airport
Massport/Worcester Regional Airport
Massachusetts Bay Transportation Authority (MBTA)
Department of Corrections (DOC)
Boston Regional / BAPERN

 BAPERN is the Boston Area Police Emergency Radio Network, a series of intercity channels used in the Boston area

Boston Regional / Metrofire

MetroFire talkgroups are fixed patches to the UHF frequencies.

Greater Boston Police Council
Western Mass Regional / WMLEC
New Braintree C8 Towns

Town that operate on C8 (Towns have secondary channels. Towns in Hampden County are noted below)
100s    Brookfield
200s    Hardwick 
300s    North Brookfield 
400s    East Brookfield        
500s    Holland    (Part-Time PD) (Hampden County)
600s    West Brookfield        
700s    Brimfield (Hampden County)
800s    New Braintree    Town is patrolled by Hardwick PD    
900s    Wales (Part-Time PD) (Hampden County)    
000s    Petersham Part-Time PD (PD operate on local channel)

Boston Police primarly operates on a set of conventional UHF frequencies.
Boston Fire primarly operates on a set of conventional UHF frequencies.
Boston EMS primarly operates on a set of conventional UHF frequencies.

Harvard University (Cambridge)

 Crimson EMS is Harvard University's EMS service.

Mass. Institute of Technology (MIT) (Cambridge)
Mount Auburn Hospital

Orange Police are also still on the analog trunk, the TGs are cross-patched.