DuPage Public Safety Communications

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Frequently Asked Questions

What is DU-COMM?

DU-COMM is an intergovernmental agency formed in 1975 to provide public safety communications services to Police, Fire, and EMS agencies.  Today, DU-COMM serves forty-four (44) agencies in DuPage County and is one of the largest consolidated 9-1-1 centers in Illinois.  In 2018 DU-COMM processed over 1.2 million phone calls and over 750,000 police and Fire/EMS incidents

How did DU-COMM originate?

On October 1st, 1972, Hillside Police Officer Anthony Raymond was kidnapped and murdered by a group who had just committed an armed robbery. The officer, who was unaware of the robbery, stopped their vehicle for a routine traffic violation. He radioed the traffic stop to his dispatcher but, because of channel congestion, was never heard. Local, state and federal government agencies then worked together to create smaller radio networks. DU-COMM was created to provide centralized communications for the northeast and northwest quadrants of DuPage County.

How big is DU-COMM?

DU-COMM is one of the largest consolidated 9-1-1 PSAPs in Illinois and serves more than 850,000 residents in DuPage County and a smaller number of persons in Cook and Kane Counties. DU-COMM receives almost 1,000 9-1-1 calls each day.  In 2018 DU-COMM processed over 1.2 million phone calls and over 750,000 police and Fire/EMS incidents

What is MABAS?

MABAS (Mutual Aid Box Alarm System) is a organization designed to provide mutual aid to area fire departments. DU-COMM is the communications center for MABAS Divisions 12 and 16.

When are Severe Weather & Outdoor Warning Sirens tested and activated?

For more information on Severe Weather and Outdoor Warning Sirens click here

Is DU-COMM privately owned?

No. DU-COMM is a unit of local government with the same rights, responsibilities, duties and obligations as any other unit of local government with one exception. DU-COMM does not levy a tax. Citizens pay 9-1-1 fees on their landline and wireless phone bills, but that money is collected by the DuPage Emergency Telephone Board (ETSB) who supports DU-COMM and other PSAPs in its system. All DU-COMM employees are considered municipal employees and belong to the Illinois Municipal Retirement Fund.

If DU-COMM cannot levy a tax, how does it receive its funding?

DU-COMM is funded in many different ways. The main source of our Operational funding comes from the Muncipalities and Fire Protection Districts we serve. DU-COMM also receives fees for monitoring alarms as well as lease fees from various cell phone companies that lease space on our towers throughout DuPage County. This funding allows DU-COMM to not only maintain its day to day operations, but to be on the cutting edge of technology for 9-1-1 communications.

How many Telecommunicators are on duty at any given time?

DU-COMM has an authorized strength of 87 full time professional Telecommunicators. Although staffing levels in our center will vary by day and time, there are generally 14 to 15 Telecommunicators on duty at any given moment.

Can I take a tour of DU-COMM?

Unfortunately, we cannot accommodate individual tours. We do provide tours to community groups such as scouts, civic associations, etc. To arrange for a group tour please contact the Deputy Director Operations at (630) 260-7504.

Will DU-COMM provide a speaker for my group or meeting?

Yes. With sufficient notice we will be happy to provide a speaker for your group or meeting to talk about 9-1-1 and DU-COMM. Please contact the Deputy Director Operations at (630) 260-7504.


DU-COMM complies with the Freedom of Information Act. Much of the information we handle is the "record" of one our member agencies. Please see the detailed Freedom of Information sheet and FOIA Request form below.

  1. Freedom of Information Act (FOIA) Sheet
  2. FOIA Request Form

State Law regarding ALI for 911. Sections: 726.205 & 727.205 - For Public Use

Section726.205 Section727.205

Required Postings:

FYE 2022 Budget   Public Act 97-609 posting (FYE23)
FYE 2023 Budget   Open Meetings Act IMRF Posting - Jan 2023 FYE24
FYE 20 Audit   FYE 21 Audit
FYE 22 Audit   FYE 2024 Budget

IMRF Website: Employer Cost & Participation Information

DU-COMM on Social Media : Twitter @ducomm911

Facebook https://www.facebook.com/DUCOMM911/