(303) 963-7405
Denver, CO
(303) 963-7405 has 1 FTC complaint and 1 FCC complaint.
- No new complaints since May 15, 2026 (FTC data through Nov 13, 2026).
- Only 7 numbers in the 303-963 block have more complaints, of 79 there with FTC complaints.
Complaint history
1 FTC complaint on May 15, 2026.
FTC complaints are filed by consumers with the U.S. Federal Trade Commission's Do Not Call registry; they aren't verified by the FTC or by us.
Complaints to the FCC
1 complaint to the U.S. Federal Communications Commission on May 15, 2026.
The complainant heard a recorded message. They filed it as unwanted calls (1). Complainants were in Colorado (1).
Source: FCC Consumer Help Center, Consumer Complaints Data (public domain), complaints about unwanted calls, telemarketing and robocalls. The FCC doesn't verify the facts alleged in complaints, and neither do we.
What callers claimed
Complaint categories chosen by FTC complainants:
- Not specified / other 1 · 100%
Who called
The number's block is assigned to Level 3 Communications, LLC in Denver, CO.
Is it a debt collector?
Nothing says it is: none of its 2 complaints describe debt collection.
Nearby numbers in 303-963
79 numbers in 303-963 have 154 FTC complaints between them (56% robocalls), 1 of them about (303) 963-7405. The commonest categories in the block: Dropped call or no message (14%), Home improvement & cleaning (8%).
The closest reported numbers on either side of (303) 963-7405, in number order.
Location
- Location of the number block
- Denver, CO, USA
- Block assigned to
- Level 3 Communications, LLC
From the North American Numbering Plan Administrator (Nov 3, 2026). This is who the number block was assigned to; numbers can be moved between carriers, and caller IDs can be faked.
The one FTC complainant was in Colorado. Statewide, Colorado ranks #7 of the 50 states and DC for Do Not Call complaints per resident: 59,905 in the last 12 months, 996.3 per 100,000 people. Spam calls in Colorado.
Where FTC complainants were located (U.S. states):
- Colorado 1 · 100%
Complainants' cities:
Longmont, CO (1)
As typed on the FTC form, with spelling variants merged; complaints without a city aren't counted.
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Recent community reports
No community reports yet. Be the first to describe this call.
What to do
- Don't share personal or banking details, or pay anyone, on a call you didn't expect. Hang up and call the organization back on a number you find yourself.
- Block it from your recent calls (iPhone: ⓘ, then “Block this Caller”; Android: long-press, then “Block”).
- Report fraud to the Canadian Anti-Fraud Centre (1-888-495-8501).
- Report telemarketing if you're registered and still got the call: to the National Do Not Call List.
- A collector calling? How to check a collection agency in your province.
- Report fraud to the FTC.
- Report telemarketing if you're registered and still got the call: to the National Do Not Call Registry.
- A collector calling? See the FTC's guide to your rights.
- Report fraud: in the U.S. to the FTC; in Canada to the Canadian Anti-Fraud Centre (1-888-495-8501).
- Report telemarketing if you're registered and still got the call: in the U.S. to the National Do Not Call Registry; in Canada to the National Do Not Call List.
- A collector calling? In the U.S., see the FTC's guide to your rights; in Canada, how to check a collection agency in your province.
Questions about (303) 963-7405
- Who called me from (303) 963-7405?
- No complaint names the caller. The number is in a block assigned to Level 3 Communications, LLC in Denver, CO (NANPA, Nov 3, 2026); numbers can move between carriers, so the caller's provider may differ.
- Is (303) 963-7405 a scam?
- Canadial rates it low risk, from 2 complaints, latest May 15, 2026.
- Is (303) 963-7405 a debt collector or collection agency?
- Nothing says it is: none of its 2 complaints describe debt collection.
- Should I call (303) 963-7405 back?
- Be careful. If you don't recognize it, let it go to voicemail: a legitimate caller will leave a message, and you can reach any real organization on a number you look up yourself.
- How many times has (303) 963-7405 been reported?
- 1 complaint to the U.S. FTC's Do Not Call registry on May 15, 2026 and 1 complaint to the U.S. FCC on May 15, 2026.
Data updated: FTC complaints through Nov 13, 2026; FCC complaints refreshed daily; numbering records as of Nov 3, 2026; community reports live. How this page is built.