Kansas City Metro - Metropolitan Area Regional Radio System (MARRS)/MARRS RID Ranges

Every radio on the MARRS system has a unique Radio ID (RID). It is broadcast with every transmission that radio makes, and many scanners are able to decode and display it. There are some patterns to the RIDs which might be useful to know when monitoring MARRS.

The RID is usually reported as a number of up to 7 digits. The first four digits seem to identify a particular city, agency, or function, and the last three digits are individual radios in that block.

Some large agencies, like the Kansas City, Missouri police, occupy several blocks of 1000 RIDs. Some smaller agencies, like Central Jackson County Fire and Lake City Ammunition Plant Fire/EMT, share a single block.

The main way this may be useful is that when an RID you haven't seen before talks, you can guess at which agency the user is probably with, even if they don't announce it. Sometimes this is handy on interagency talkgroups like Regional Common 3, everybody's favorite car-chase channel.

If you don't want to look through the whole list, here are some rules of thumb that usually work:

If the RID is 4 digits or fewer, it's something in Independence, Missouri.

If the RID is 7 digits and begins with 3, it's probably on the Kansas side

If the RID is 7 digits and begins with 4, it's probably on the Missouri side.

The only notable place the "3/4" rules fall down is with 3032 and 3033, which are used by ambulances on both sides of the state line.

This is based on monitoring from late 2018 to spring 2022. At the time this article was first created (mid-January 2021), some agencies in MARRS were reprogramming their radios, in preparation for moving to P25 Phase II. This may cause the radio ID ranges below to change, possibly substantially!

The "block" listed here is the thousands part of the radio ID - block 4001 is radio IDs from 4001000 to 4001999, and so on.

Block	Agency
0	Independence. Includes Fire, Police, Power&Light, and Public Works.
1	Independence Police
2	Independence. Includes Fire, Power&Light, and Public Works.
3	Independence. Includes Public Works, Power&Light, Fire, and possibly Police.
4	Independence Police and Fire
5	Independence Public Works
8	Independence. Includes Fire and Public Works.
13	Central Jackson County Fire, Lake City Ammo Fire/EMT, Sugar Creek Police
14	Independence. Includes Power&Light.
15	Lake City Ammo fire/EMT
16	Blue Springs. Includes Police and Public Works.
131	Unknown fire department, possibly Sni Valley or Fort Osage
901	Unknown officers, possibly Federal or Kansas City, Kansas
1000	Missouri Highway Patrol
1004	Missouri Highway Patrol
1005	Missouri Highway Patrol
1030	Missouri DOT Motorist Assist
1033	Missouri DOT Motorist Assist
1061	Central Jackson County Fire
1067	Sni Valley Fire
1261	Kansas City Police
1067	Sni Valley Fire/EMT
1901	Federal?
3000	National Weather Service Pleasant Hill, Life Flight helicopters
3002	Unknown officers, possibly Federal or Johnson County, KS
3003	Johnson County, KS officers, plus possibly Federal
3004	Johnson County, KS officers
3007	Unknown fire department
3008	Johnson County, KS officers
3010	Unknown fire department, possibly Olathe or Kansas City, KS
3012	Olathe Police and possibly Fire
3013	Unknown officers
3016	Olathe Police
3018	Lenexa Police
3019	Unknown officers, possibly Shawnee
3021	Unknown officers, possibly Overland Park
3022	Prairie Village Police
3024	Mission Police, possibly other Kansas-side police
3026	Unknown officers
3032	Various ambulances and emergency rooms: Central Jackson County, Lee's Summit, Kansas City Missouri, American Medical Response, Life Flight, and possibly Kansas City, Kansas. Centerpoint ER, St. Mary's ER, Truman ER, and Truman Lakewood ER.
3033	AMR ambulances
3034	Kansas Highway Patrol
3035	Unknown officers, possibly Kansas City, KS or Kansas Highway Patrol
3036	Kansas Highway Patrol
3039	Kansas City, KS Police
3040	Kansas City, KS ambulances
3041	Unknown officers
3042	Unknown officers
3043	Unknown officers, possibly Bonner Springs, KS
3051	Leavenworth, KS Police
3053	Unknown fire department
3056	Unknown officers
3499	Kansas-side dispatchers. Olathe, Shawnee, KCK, Spring Hill, Overland Park, Leawood, Bonner Springs, and Johnson County Emergency Command Center.
4000	Missouri-side dispatchers. Kansas City Police and Fire, CJC Fire, KCI airport, MKC airport, Independence Fire, Blue Springs Police, Jackson County Sheriff, Clay County Sheriff, Platte County Sheriff, Raytown, South Metro/West Cass Fire, Cass County, Clay County, Claycomo, Pleasant Hill, Grandview, possibly VA Police. Possibly non-dispatch Kansas City Police offers as well.
4001	Kansas City Police
4002	Kansas City Police and Fire
4003	Unknown, possibly Kansas City Police
4004	Kansas City Police
4005	Kansas City Police
4006	Kansas City Police
4007	Kansas City Fire
4008	Kansas City Fire
4009	Kansas City Fire
4010	Unknown, possibly Kansas City Public Works
4012	KCI and MKC Airport Police, Fire, and maintenance.
4014	Kansas City building code inspectors. May also include Animal Control.
4015	Kansas City Police
4020	KCI Airport Police
4021	KCI Airport Police
4022	Kansas City jail
4023	Riverside Police and Kansas City Fire
4024	Platte County Sheriff
4025	Unknown officers, possibly Weston
4026	Unknown officers
4028	North Kansas City Police and Fire
4029	Liberty Police, Claycomo Police, and Clay County Sheriff
4030	Liberty Fire/EMT, possibly Clay County Sheriff
4031	Unknown officers
4032	Clay County Sheriff
4033	Unknown fire and officers, possibly Belton
4034	Unknown officers, possibly Garden City
4035	Cass County Sheriff
4036	Unknown fire, possibly Belton
4038	Kansas City Fire and Raytown Police
4039	Kansas City Fire
4040	Grain Valley Police
4041	Grain Valley and Oak Grove Police. Possibly Greenwood Police.
4042	Grain Valley Police, Inter-City Fire
4044	Jackson County Sheriff and park rangers
4045	Lee's Summit Police and Fire
4046	Lee's Summit Fire
4053	Unknown officers, possibly VA Police
4054	VA Police, plus unknown officers, possibly Federal
4055	VA Hospital, plus unknown officers, possibly Federal
4098	Unknown officer, possibly BNSF Railway Police
4101	Kansas City Police
4103	Kansas City Police
4104	Kansas City Police
4105	Kansas City Police
4106	Kansas City Police
4107	Kansas City Police
4111	Kansas City Police
4112	Kansas City radio technicians
4114	Kansas City radio technicians
4116	Kansas City radio technicians
4117	Kansas City radio technicians
4150	Kansas City Police
4203	Kansas City Police
4204	Kansas City Police
4205	Kansas City Police
4429	Unknown officers, possibly Claycomo and Pleasant Valley
4480	Missouri DOT Motorist Assist
4490	Kansas City Police helicopters
4496	Unknown officers, possibly Kansas City Police, and Kansas City radio technicians
4497	Unknown officers
4498	Kansas City radio technicians
4950	Kansas City Police
4999	Unknown dispatch, possibly Sugar Creek