(720) 307-6510
(720) 307-6510 is likely an unwanted sales call: 15 FTC complaints, 27% recorded messages, most often about dropped calls or silence (27%).
- No new complaints since Jul 25, 2024 (FTC data through Nov 13, 2026).
- More FTC complaints than 99% of the 31,610 numbers with FTC complaints in area code 720.
- No number in the 720-307 block has more complaints; 151 numbers there have FTC complaints.
Complaint history
15 FTC complaints between Mar 14, 2024 and Jul 25, 2024.
The FTC complaints came in 2 of the 5 months from Mar 2024 to Jul 2024; the busiest was Jul 2024, with 13 of 15.
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.
What callers claimed
4 of its 15 FTC complaints (27%) are about dropped calls or silence, against 16% of the 40,642 FTC complaints about all numbers in area code 720.
Complaint categories chosen by FTC complainants:
- Not specified / other 11 · 73%
- Dropped call or no message 4 · 27%
Who called
The number's block is assigned to Bandwidth.com CLEC, LLC.
Is it a debt collector?
Nothing says it is: none of its 15 complaints describe debt collection.
Nearby numbers in 720-307
The closest reported numbers on either side of (720) 307-6510, in number order.
When the calls came
Time of day of 14 calls; most often the 2 p.m. hour (4):
Day of the week of 15 calls; most often Thursday (10):
The date and time of the call as complainants entered them on the FTC form; the time zone isn't recorded. Times entered as exactly midnight or noon are left out (they're usually the form's default).
Location
- Rate centre (NANPA abbreviation)
- ALLNSPKLYN, CO, USA
- Block assigned to
- Bandwidth.com CLEC, 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.
Most FTC complainants were in Colorado (13 of 15); others in Arkansas (1) and Oregon (1). 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 13 · 87%
- Arkansas 1 · 7%
- Oregon 1 · 7%
Complainants' cities:
Medford, OR (1) · Springdale, AR (1)
As typed on the FTC form, with spelling variants merged; complaints without a city aren't counted.
Searches on Canadial
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Recent community reports
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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 (720) 307-6510
- Who called me from (720) 307-6510?
- No complaint names the caller; FTC complainants most often said the calls were about dropped calls or silence. The number is in a block assigned to Bandwidth.com CLEC, LLC (rate centre ALLNSPKLYN, CO) (NANPA, Nov 3, 2026); numbers can move between carriers, so the caller's provider may differ.
- Is (720) 307-6510 a scam?
- Canadial rates it low risk, from 15 complaints, latest Jul 25, 2024, 27% robocalls.
- Is (720) 307-6510 a debt collector or collection agency?
- Nothing says it is: none of its 15 complaints describe debt collection.
- Should I call (720) 307-6510 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 (720) 307-6510 been reported?
- 15 complaints to the U.S. FTC's Do Not Call registry between Mar 14, 2024 and Jul 25, 2024.
- What do callers from (720) 307-6510 say?
- 4 of its 15 FTC complaints (27%) are about dropped calls or silence, against 16% of the 40,642 FTC complaints about all numbers in area code 720.
- When does (720) 307-6510 call?
- In FTC complaints, the most common time was the 2 p.m. hour (4 of 14 calls with a time); the most common day was Thursday (10 of 15).
Data updated: FTC complaints through Nov 13, 2026; numbering records as of Nov 3, 2026; community reports live. How this page is built.