This Is Not a Government Office or Directory Service. We run a private reference site. We cannot place calls, change directory listings, verify caller identity, or issue official directory information. For any of those, you need to reach the right office or carrier directly. For emergencies, dial 911. For a mental-health or suicidal crisis, dial 988.
Need a Specific Phone Number?
Here's where to look for the numbers most people ask about in Illinois:
- State government numbers: see the Illinois state employee directory, searchable by name or phone number at cmsapps.illinois.gov/teledirectory
- Chicago city services: dial 311 inside Chicago or 312-744-5000 from anywhere else; City Hall is at 121 N. LaSalle St.
- School and university numbers: see Illinois school district and university directories, or call ISBE at 217-558-3600
- Public utility numbers: see Illinois utility phone numbers - emergency lines are separate from customer service, and the ICC consumer line is 800-524-0795
- Public safety numbers: see Illinois public safety phone numbers for 911, 988, 311, 211, and the State Police dispatch centers
- Health and social services: see health and social services in Illinois, or dial 211 anywhere in the state
- Area code reference: see Illinois phone area codes
- Phone code reference (N11, star codes, +1): see Illinois phone codes
- Reverse-lookup for an unknown caller: see reverse-lookup channels
- Reporting a scam or robocall: see how to report scam calls, or call the Attorney General's consumer fraud line at 800-386-5438 in Chicago
- Public records requests: Illinois FOIA requests go to the individual agency; Chicago posts department FOIA contacts on its FOIA hub, and Cook County lists FOIA officers for each elected office