WhoCalledLookupUS
US

Robocalls in Colorado

Colorado consumers have filed 33,196 unwanted-call complaints with the FCC against 27,774 different phone numbers between 2014-01-01 and 2026-09-09 — 3.4% of all state-attributed complaints, ranking 8 nationally. Complaints in the last 12 months are up 131% on the 12 months before that.

33,196
FCC complaints
7,350
FTC DNC reports
4,695
FTC reports, last 30 days
#8
National rank (FCC)

Colorado complaint volume by year

Unwanted-call complaints filed with the FCC by Colorado consumers each year. The shape of this curve reflects both actual call volume and how aware consumers are that the FCC complaint centre exists.

Area codes most reported in Colorado

The displayed area code of numbers reported by Colorado consumers — often, but not always, a local code, because spoofing favours familiar-looking numbers.

How the calls reached Colorado

Prerecorded Voice
14,685
Live Voice
9,381
Abandoned Calls
6,856
Text Message
2,100
Autodialed Live Voice Call
149
Email
2
Wireless (cell phone)
16,931
Wired
9,926
Internet (VOIP)
6,329

Numbers Colorado residents reported this month

The numbers Colorado consumers reported most to the FTC's Do Not Call Registry in the last 30 days — 4,695 reports in all, 773 of them this week; 74% were described as robocalls. Click a number for what it was reported for.

What Colorado residents were called about this month

  • Other / unspecified
    2,023
  • Debt reduction
    1,192
  • Dropped call / no message
    434
  • Impostor (government, business, family)
    354
  • No subject given
    199
  • Medical & prescriptions
    157
  • Home improvement & cleaning
    138
  • Warranties & protection plans
    85

Numbers most reported to the FCC by Colorado consumers

Ranked by how many Colorado FCC complaints name them, limited to the last five years. A number appearing here means people in Colorado reported receiving calls that displayed it — not that its owner placed them.

Recently reported by Colorado consumers

Numbers with the newest Colorado complaints in the last 12 months — the campaigns calling Colorado right now, not the historical leaders above.

Do Not Call protection in Colorado

Colorado is one of the states that maintains its own Do Not Call registry alongside the federal National Do Not Call Registry, so telemarketers calling Colorado numbers are expected to check both lists. Registering on the federal list at donotcall.gov is free and never expires; the state list is administered separately and may have its own registration process and renewal period.

Whatever your state does, the federal National Do Not Call Registry applies, and the Telephone Consumer Protection Act gives you a private right of action against certain unlawful calls. Report unwanted calls at the FCC complaint centre and fraud at ReportFraud.ftc.gov.

Do Not Call classification per National Association of Attorneys General — history of Do Not Call. This is general information, not legal advice.

Colorado robocall FAQs

How many robocall complaints do Colorado residents file?

Colorado consumers have filed 33,196 unwanted-call complaints with the FCC against 27,774 distinct phone numbers, covering 2014-01-01 to 2026-09-09. That is 3.4% of all state-attributed complaints in the dataset, ranking Colorado 8 among US states and territories by complaint volume.

Does Colorado have its own Do Not Call list?

Colorado is one of the states that maintains its own Do Not Call registry alongside the federal National Do Not Call Registry, so telemarketers calling Colorado numbers are expected to check both lists. Registering on the federal list at donotcall.gov is free and never expires; the state list is administered separately and may have its own registration process and renewal period.

Where do the calls reported in Colorado come from?

The FCC records the state the person filing the complaint was in, not where the caller was. Because caller ID is easily spoofed, a call reported in Colorado may have been placed from anywhere in the world and may have displayed a Colorado number that belongs to an uninvolved person. Area code alone tells you nothing reliable about a caller's location.

What kind of calls are reported most in Colorado?

Prerecorded Voice is the most-reported category in Colorado, accounting for 14,685 of the 33,196 complaints (44%). Live Voice is second with 9,381.

Complaint figures from the FCC Consumer Complaint Data Center, imported nightly, and FTC Do Not Call complaints (unverified consumer reports), published every weekday. The state recorded is the state the complainant filed from.