Find Colorado Phone Numbers by Office

How to Look Up a Colorado Phone Number

Start with the office type. State agencies and counties answer through the Colorado.gov contacts tool. Cities and towns publish their own lines, backed by the Colorado Municipal League directory. Schools route through their district or campus. Benefits and public health answer at the county office where the person lives, because Colorado runs those programs county by county. That habit of asking "who owns this service" solves most lookups in one step.

When no online directory lists the number, the fallbacks still work. Call the office's main switchboard and ask for a transfer. Visit the counter in person for county services. Dial 211 when the need is help rather than a specific office. As a last resort, a written CORA records request to the agency's custodian can produce phone lists that were never posted.

City and Town Numbers Across Colorado

Municipal numbers live in two layers. The statewide layer is the Colorado Municipal League directory, which covers 270 of the state's 273 cities and towns with main phones, addresses, and officials, and its staff answers 303-831-6411. The local layer is each municipality's own website, which stays fresher for department lines. Denver adds a true 311 service, reachable at 3-1-1 inside the city, 720-913-1311 from anywhere, and TTY 720-913-8479. Colorado Springs skips the phone code and handles service requests through its GoCOS portal instead.

Police and fire non-emergency lines complicate the picture. Many Colorado fire services are special districts rather than city departments, and some non-emergency dispatch is countywide. If the city site fails, check the county sheriff's page next.

Colorado County and State Office Numbers

Every county main line is one search away in Colorado.gov Contacts Search, which filters by agency, county, and keyword. Results carry the phone, fax, and street address, such as 719-456-1600 for Bent County or 970-725-3347 for Grand County. State numbers worth saving include the Secretary of State at 303-894-2200, the Attorney General at 720-508-6000, the DMV driver license line at 303-205-5600, and CDPHE at 303-692-2000.

Many counties also run true staff directories. Park County's is a good example of what those portals expose:

The Park County staff directory returns lines like 719-836-4331 for the assessor and 719-836-4333 for the clerk and recorder. Counties without such a portal still answer through their switchboard, the clerk roster kept by the Secretary of State, or the State Archives clerk contact list.

Emergency and Crisis Lines in Colorado

The short codes come first. They work in every Colorado area code and cost nothing to remember.

Beyond the short codes, non-emergency numbers depend on where you stand. A sample of documented lines shows the spread:

• Colorado State Patrol headquarters - 303-239-4500, with a 24-hour line at 303-239-4501
• Grand Junction non-emergency dispatch - 970-242-6707, answered around the clock
• Colorado Springs police non-emergency - 719-444-7000
• El Paso County Sheriff - 719-390-5555
• CBI investigations - Denver 303-239-4211, Grand Junction 970-248-7500, Pueblo 719-647-5999
• Safe2Tell school safety line - 1-877-542-7233

Adult protection follows the county rule: reports go to the county APS office where the at-risk adult lives, not to a single state number.

Colorado School District Phone Directories

The Colorado Department of Education anchors K-12 lookups. It posts downloadable contact files for every public and non-public school on its school contact downloads page, and the department itself answers 720-739-3238. District offices handle the rest, and the biggest ones publish searchable staff pages. Denver Public Schools runs the state's most visible one at its staff directory, filtered by staff name.

The captured directory shows names and leadership titles, but direct phones stay unlisted there, so the district's contact page and department lines carry the calls. A few district numbers cover most needs:

Public libraries belong on the same list, since branch desks answer local questions all day. Denver Public Library posts every branch line on its locations page.

The Central Library answers 720-865-1111, phone reference takes 720-865-1363, and Spanish-language reference runs through 720-865-1187.

Colorado Campus Directories and Reverse Lookup

Colorado State University publishes the strongest campus phone tool in the state. Its online directory searches by last name, full name, or nickname, and the university's general line answers 970-491-1111 during business hours.

Students can hide their listings through directory preferences, but employee entries stay public. A typical employee record exposes a full contact profile:

CSU goes one step further with an official reverse employee phone lookup, rare among public universities.

It accepts partial numbers and returns only public phone data, which makes it a clean way to identify a campus caller. CU Boulder takes a different approach, publishing people-search rules that spell out which students and employees appear and how office phones must be formatted. On the Anschutz campus, the Colorado School of Public Health runs a filterable directory by center, department, and campus.

Each profile there opens to a biography, a primary phone, and a mailing address, with the site advising one filter at a time for clean results.

Colorado Utility Outage and Service Numbers

Utilities answer two kinds of calls, and the numbers differ. Emergencies and outages get dedicated lines that answer at all hours. Billing and account work runs on weekday customer service lines. For a gas smell or a downed wire, leave the area and treat 911 as a valid first call.

Complaints that a utility will not resolve escalate to PUC Consumer Affairs at 303-894-2070 or 1-800-456-0858.

Colorado Health and Human Services Numbers

State health lines start at CDPHE: 303-692-2000 for the main switchboard, 303-692-2200 for vital records, and 303-692-2420 for immunization records. Local public health is county-run, with its own directory of agencies such as El Paso County Public Health at 719-578-3199. Benefits follow the same pattern through the CDHS county human services directory, where Denver answers 720-944-4347, Jefferson County 303-271-1388, and Pueblo County 719-583-6160.

Hospital switchboards handle the clinical side. UCHealth's University of Colorado Hospital answers 720-848-0000, Memorial Hospital in Colorado Springs 719-365-5000, and Poudre Valley in Fort Collins 970-495-7000. Denver Health's main campus takes 303-436-6000 with appointments at 303-436-4949, and Children's Hospital Colorado answers 720-777-1234. Veterans reach VA Eastern Colorado at 303-399-8020 and VA Western Colorado at 970-242-0731, with 988 option 1 serving as the Veterans Crisis Line.

Vital Records and Licensing Numbers in Colorado

Vital records are not public records in Colorado, so there is no open search. Birth and death certificates come from CDPHE Vital Records at 303-692-2200, or from county vital records offices, and only eligible persons can order them. Marriage records sit with the county clerk and recorder, and divorce records with the district court clerk in the county where the case ran. Licensing calls split by type: business filings reach the Secretary of State at 303-894-2200, professional licenses reach DORA's Division of Professions and Occupations at 303-894-7800, and driver licenses reach the DMV at 303-205-5600 with appointments at 720-295-2965.

Reverse Lookup Through Official Channels

Official channels rarely name a private caller, but they verify what can be verified. The FCC Reassigned Numbers Database tells registered callers whether a number changed hands after a given date, with support at 833-763-2366. NANPA's public prefix records confirm a number's original carrier and rate center, and the regional map behind those codes sits on the Colorado phone area codes page. A practical check runs in order:

1. Save the number, the call time, and any voicemail before it disappears from your log.
2. Confirm the area code and prefix are real Colorado assignments in NANPA's records.
3. Search the number in the FCC Consumer Complaint Center context and file if it fits a pattern.
4. Check whether your number is registered on both the federal and Colorado no-call lists.
5. Report violations to the FTC and to Colorado No Call, which takes complaints at 303-776-2678 or 800-309-7041.

Third-Party Reverse Phone Tools

These are private services, not government sources, and their results vary in depth and accuracy. They are the only realistic route to a caller's name when the number is not in any official directory. The simplest to try first is NumLookup, which takes a 10-digit number and returns owner details for free at the basic level.

Deeper reports cost money there, as they do across the category. The field compares this way:

Note: Treat any single third-party result as a lead, not proof, and never make a safety decision on caller ID data alone.

Identifying Line Type and Carrier

Line type changes how to read a call. A landline usually ties to a fixed address and cannot take texts. A wireless number likely belongs to a person and can be texted back. VoIP is legitimate for businesses, clinics, schools, and remote workers, but scam operations favor it because numbers are cheap to obtain and rotate.

Prefix databases show only the original assignment, and portability lets a 303 or 970 number hop from wireline to wireless without changing digits. For the current picture, run the number through a live tool such as FreeCarrierLookup, then compare it against a second source before trusting the answer.

Where to Report a Colorado Scam Call

Colorado routes phone complaints by type. Telemarketing that ignores your registration goes to the FTC at 1-888-382-1222 and to Colorado No Call, whose form screens whether the call was political, survey-only, or debt collection. Robocalls, spoofing, and spam-label problems belong with the FCC. Outright fraud, impersonation, or money loss goes to Stop Fraud Colorado and the Attorney General at 720-508-6000, and Denver residents can add the DA Fraud Hotline at 720-913-9179.

The scripts to expect are documented. Courts and sheriffs never demand payment by phone for missed jury duty, a warning both the AG and the Denver Sheriff repeated in 2025 after callers spoofed real detention center numbers. Debt relief robocalls topped the FCC's 2025 scam categories, and blackmail letters now recycle names and addresses pulled from public data.

Note: Complaints with a number, a date, and a saved voicemail get acted on faster than vague reports, so capture the evidence before filing.

Community Directories and 211 Colorado

For any need that sounds like help rather than a specific office, 211 Colorado is the shortcut. Its database holds more than 6,500 services from over 2,500 agencies, covering housing, food, legal aid, employment, health, and crisis referrals, and it updates daily. Access runs four ways: dial 2-1-1, call 866-760-6489, text a ZIP code to 898-211, or chat with a navigator online. Western Colorado 211 serves the Grand Junction region at 888-217-1215.

Business and employer numbers route through chambers of commerce, with the Fort Collins Area Chamber at 970-482-3746 keeping a major-employers list for northern Colorado. Aurora's economic development council does the same for the state's third-largest city.