Colorado State Patrol (CO)

Unofficial Colorado State Patrol Map
2024 Colorado State Patrol Map
Colorado State Patrol Boundaries

Dispatch Centers

The Colorado State Patrol operates five regional communications centers; Alamosa, Craig, Denver, Montrose, Pueblo. The CSP also operates a communications center dedicated to Executive Security ("Capitol Dispatch"). Most operations occur on DTRS. However, some troopers may use VHF channels in certain areas where DTRS coverage is weak.

Alamosa Dispatch

Troop 5B
Alamosa County

Craig Dispatch

Troop 4B
Troop 4C
Moffat County Law/Fire/EMS
San Juan County SO/Fire/EMS

Denver Dispatch

Troop 1A
Troop 1B (On 1C)
Troop 1C
Troop 1D
Troop 1E
Troop 3A
Troop 3C

Montrose Dispatch

Troop 4A
Troop 5A
Troop 5C

Pueblo Dispatch

Troop 2A
Troop 2B
Troop 2C
Troop 2D
Troop 2E (On 2B)
Troop 3B
Troop 3D

Capitol Dispatch

Troop 9B

Patching

Understanding patching is essential when trying to monitor CSP. The communications centers do not have dispatchers for every single talkgroup that they dispatch for, so various talkgroups are often patched together in random combinations that change frequently. When patching occurs, the system automatically redirects voice traffic from all the selected talkgroups to a single talkgroup. One will often hear several troops on a single talkgroup while they are patched together.

Scanners that support following P25 patches will automatically follow the voice traffic to the correct talkgroup. Monitoring a single troop will work as long as there is a radio affiliated to the site being scanned. Scanner models known to support following P25 patches are listed below.

GRE PSR-500¹, PSR-600¹, PSR-800
RadioShack Pro-106¹, Pro-197¹, Pro-18, Pro-651, Pro-652, Pro-668
Uniden BCD436HP², BCD536HP², BCD325P2³, BCD996P2³, SDS100, SDS200
Whistler WS1040, WS1065, WS1080, WS1088, TRX-1, TRX-2

¹ With CPU Firmware 1.8 or newer.

² With Firmware Version 1.14.00 or newer.

³ With Firmware Version 1.08.00 or newer.

Scanners that do not support following P25 patches may often be silent when trying to monitor a single troop. One must monitor all the talkgroups covered by the communications center to guarantee that no traffic is missed.

Codes

The following is a comprehensive list adopted from the Expanded APCO 10 Codes. While some of these codes are used, many are rarely used, and some have likely been phased-out.

Troopers always begin their transmission with the Regional Dispatch Center they are calling, followed by call sign, followed by their request/info. (i.e. "Denver 1 Adam 17 clear PA" means unit 1 Adam 17 is calling Denver Dispatch to advise he/she finished their traffic stop with a penalty assessment).

10 Codes

10-1: Unable To Copy
10-2: Signals Good
10-3: Stop Transmitting
10-4: Acknowledgement
10-5: Relay
10-6: Busy Stand-By
10-7: Out Of Service
10-8: In Service
10-9: Repeat
10-10: Fight In Progress
10-11: Dog Case
10-12: Stand By (stop)
10-13: Weather & Road Report
10-14: Report Of Prowler
10-15: Civil Disturbance
10-16: Domestic Trouble
10-17: Meet Complainant
10-18: Complete Assignment Quickly
10-19: Return To ___
10-20: Location
10-21: Call ___ By Telephone
10-22: Disregard
10-23: Arrived At Scene
10-24: Assignment Completed
10-25: Report In Person To ___
10-26: Detaining Subject
10-27: Driver's License Information
10-28: Vehicle Registration
10-29: Check Records For Want
10-30: Unauthorized Use Of Radio
10-31: Crime In Progress
10-32: Person With Gun
10-33: Emergency
10-34: Riot
10-35: Major Crime Alert
10-36: Correct Time
10-37: Suspicious Vehicle
10-38: Stopping Suspicious Vehicle
10-39: Urgent (light/siren)
10-40: Silent Run
10-41: Beginning Tour Of Duty
10-42: Ending Tour Of Duty
10-43: Information
10-44: Request Permission To Leave Patrol
10-45: Animal Carcass In Road
10-46: Assist Motorist
10-47: Emergency Road Repairs Needed
10-48: Traffic Standard Repair
10-49: Traffic Light Out
10-50: Traffic Accident
- F: Fatality
- PI: Personal Injury
- PD: Property Damage
10-51: Wrecker Needed
10-52: Ambulance Needed
10-53: Road Blocked
10-54: Livestock On Highway
10-55: Intoxicated Driver
10-56: Intoxicated Person
10-57: Hit & Run
- F: Fatality
- PI: Personal Injury
- PD: Property Damage
10-58: Direct Traffic
10-59: Convoy Or Escort
10-60: Squad In Vicinity
10-61: Personnel In Area
10-62: Reply To Message
10-63: Prepare To Make Written Copy
10-64: Attention on the Radio for an Important Broadcast
10-65: Net Message Assignment
10-66: Message Cancellation
10-67: Clear To Read Net Message
10-68: Dispatch Information
10-69: Message Received
10-70: Fire Alarm
10-71: Advise Nature Of Fire (size, type, contents of building)
10-72: Report Progress On Fire
10-73: Smoke Report
10-74: Negative
10-75: In Contact or Traffic Stop
10-76: En Route
10-77: ETA
10-78: Need Assistance
10-79: Notify Coroner
10-82: Reserve Lodging
10-84: If Meeting, Advise ETA
10-85: Will Be Late
10-87: Pick Up Checks For Distribution
10-88: Advise Telephone # Of ____
10-90: Bank Alarm
10-91: Unnecessary Use Of Radio
10-93: Blockade
10-94: Drag Racing
10-95: In Custody (i.e. "55, 95" means a person is now in custody for suspicion of DUI)
10-96: Mental Subject
10-98: Prison/Jail Break
10-99: Records Indicate Wanted/Stolen

Other Codes:

PA: Penalty Assessment
Code Frank: Fatality/Deceased

Troop Boundaries & Call Signs

In 2013 CSP underwent "re-districting" for troop boundaries. Current boundaries are approximately as follows (note that some counties may fall within multiple troops):

District 1 Encompasses Troops:

1A: Golden
- Most of Jefferson and Clear Creek
1B: E-470 Tollway (Dispatched on 1C)
1C: Castle Rock
- W Arapahoe, Douglas, and W Elbert
1D: Adams County
- W Adams, S Boulder, Broomfield, and Denver
1E: Gilpin County Gaming
- Gilpin and W Jefferson in Clear Creek Canyon

District 2 Encompasses Troops:

2A: Florence
- Chaffee, Custer, Fremont, and Park
2B: Colorado Springs
- El Paso, NW Pueblo
2C: Lamar
- Baca, Bent, Cheyenne, Crowley, Kiowa, NE Las Animas, Otero, and Prowers
2D: Pueblo
- Huerfano, most of Las Animas, and most of Pueblo
2E: Teller County (Dispatched on 2B)

District 3 Encompasses Troops:

3A: Greeley
- Most of Weld, N Boulder
3B: Sterling
- Logan, Morgan, Phillips, Sedgwick, Washington, E Weld, and Yuma.
3C: Fort Collins
- Larimer
3D: Limon
- E Adams, E Arapahoe, most of Elbert, Kit Carson, and N Lincoln

District 4 Encompasses Troops:

4A: Fruita
- W Garfield and Mesa
4B: Craig
- NE Garfield, Grand, Jackson, Moffat, Rio Blanco, and Routt
4C: Glenwood Springs
- Eagle, E Garfield, parts of N Gunnison, Lake, Pitkin, and Summit

District 5 Encompasses Troops:

5A: Durango
- Archuleta, Dolores, La Plata, Montezuma, and San Juan
5B: Alamosa
- Alamosa, Conejos, Costilla, S Hinsdale, Mineral, Rio Grande, and most of Saguache
5C: Montrose
- Delta, most of Gunnison, N Hinsdale, Montrose, Ouray, San Miguel, and NW Saguache

Other Call Signs

1-Delta: Adams County Proactive Impact Team

7A: Denver Communications Center (rarely heard)
7B: Pueblo Communications Center (rarely heard)
7C: Alamosa Communications Center (rarely heard)
7D: Montrose Communications Center (rarely heard)
7E: Craig Communications Center (rarely heard)

8A: Aircraft ("Airborne 1/2/3/4")
8C: Hazmat (now use HAZMAT#)
8D: Motor Carrier Safety (now use MCS#)
8E: Immigration Enforcement Unit (now use STIS#)
8F: Homeland Security Unit
8V: ?

9B: Executive Security Unit
9P: Port of Entry Officers (2 digit = Supervisor, 3 digit = Officer)
'9P1xx: ?
'9P2xx: ?
'9P3xx: Fort Morgan Port of Entry (I-76)
'9P4xx: Limon Port of Entry (I-70)
'9P5xx: ?
'9P6xx: ?
'9P7xx: Dumont Port of Entry (I-70)
'9P8xx: Cortez Port of Entry (US-491)
'9P9xx: Loma Port of Entry (I-70)
9R: Department of Revenue
'9R5xx: Auto Industry
'9R8xx: Liquor & Tobacco

10A: Headquarters assignment
10C: Public Affairs
10E: Evidence Techs by district 1-5
10M: Motor Operations (they travel Troop to Troop)

11A: Academy Staff
11B: Academy (transient call sign for simulated training calls/scenarios)
11D: Academy Selection Team and Recruiters
11F: Academy Continuing Education (Includes Child Safety Seat Inspection)
11R: Academy Recruits

Academy #: (new call sign for all Academy?)
Agent #: Executive Security Unit
C#: Captain
Command 1 through 9: Colonel, LtCols, Majors
Command 10, 20, 30, 40, 50: District Commanders (Majors)
ISS #: Investigative Service Section
HazMat #: Hazardous Materials Section
Headquarters #: (new call sign for all HQ?)
K9: Dog handlers, part of STIS
MCS #: Motor Carrier Safety
Ocean #: CSP Civilian State Capital Security Officers
R#: Corporal
Sam #: CSP Civilian State Capital Security Supervisors
S#: Sergeant
STIS #: Smuggling and Trafficking Interdiction Section
VA #: Victim Advocate (normally only paged-out for DOA's).
VCU #: Vehicle Crimes Unit (Accident Reconstruction)

On The callsigns...the number such as 1 charlie 8, is the seniority number within the troop, ex 1 David 1 would be the senior trooper of the troop

Outside Agencies Dispatched on CSP Channels

Several "outside" State Agencies may utilize State Patrol for dispatching services, sometimes for limited time periods or specific assignments. (This does not include local agencies outside the Denver-Metro area who contract with CSP for primary dispatch services):

BN#: BNSF Railroad Officer (To date only heard on "Statewide" talkgroup)
UP#: Union Pacific Railroad Officer (To date only heard on "Statewide" talkgroup)
OEM #: Office of Emergency Management (very minimal traffic)
Brand #: Dept. of Agriculture Brand Inspector (very rare)
Parks #: State Park Ranger
Parole #: DOC Parole Officer
Probation #: Judicial District Probation Officer (first digit(s) equals Judicial District number)
Wildlife #: State Wildlife Officer