Toll-free number
(866) 454-8855
866-454-8855 · 8664548855 · High complaint volume
Consumers have filed 10 complaints about calls from (866) 454-8855 with the Federal Trade Commission and the Federal Communications Commission, between May 9, 2025 and Sep 17, 2026. The most common topic is medical & prescriptions (3 of 10 reports), and 20% of callers used a recorded message. Complaints came from 6 states, which is typical of mass-dialing campaigns.
Complaint activity for (866) 454-8855
What callers from this number were about
Calls about medical supplies, prescriptions or health plans often try to collect your Medicare or insurance number. Medicare will not contact you for your Medicare number or other personal information unless you have given permission in advance.
Where the complaints came from
Cities named in complaints: Charlotte, NC (1) · Little River, SC (1) · Oak Park, IL (1) · Tempe, AZ (1) · San Jose, CA (1) · San Francisco, CA (1) · West Covina, CA (1) · Elk Grove, CA (1) · Greeneville, TN (1) · Escondido, CA (1)
Latest complaints
| Date filed | Consumer location | Topic | Type | Source |
|---|---|---|---|---|
| Sep 17, 2026 | Tempe, AZ | Medical & prescriptions | Live caller | FTC |
| Sep 16, 2026 | Oak Park, IL | Other | Live caller | FTC |
| Sep 14, 2026 | Little River, SC | Debt reduction | Recorded message | FTC |
| Sep 14, 2026 | Charlotte, NC | Medical & prescriptions | Live caller | FTC |
| Sep 11, 2026 | Escondido, CA | Impostor calls | Live caller | FTC |
| Sep 4, 2026 | Greeneville, TN | Medical & prescriptions | Recorded message | FTC |
| Aug 21, 2026 | Elk Grove, CA | Not specified | Live caller | FCC |
| Sep 3, 2025 | West Covina, CA | Not specified | Live caller | FCC |
| May 19, 2025 | San Francisco, CA | Not specified | Live caller | FCC |
| May 9, 2025 | San Jose, CA | Not specified | Live caller | FCC |
Linked call-back numbers
In FCC complaints, consumers can record the number the caller asked them to call back. These links show how numbers are used together in the same campaign.
- Callers from (866) 454-8855 gave out (510) 759-4870 (1 report)
Number details
- Formats
- (866) 454-8855 · 866-454-8855 · +1 866-454-8855 · 8664548855
- Area code
- 866 (toll-free)
- First and last complaint
- May 9, 2025 – Sep 17, 2026
The carrier shown is the company the prefix was first assigned to by the numbering administrator. Numbers are often ported to other carriers, and caller ID can be faked, so the real caller may be unrelated to this carrier or to the person who owns this number.
Your rights under the TCPA
The Telephone Consumer Protection Act (47 U.S.C. § 227) lets consumers sue over certain prerecorded or autodialed calls made without consent, for $500 per violation, and courts may increase damages up to three times when the violation was willful or knowing.
For telemarketing calls to a number on the National Do Not Call Registry, a private claim generally requires more than one call within 12 months from the same company. Keep a record of dates, times and any company name the caller gave.
Want to take action over calls from (866) 454-8855? Find a New York attorney
General information only, not legal advice. The attorney directory currently covers New York.
How to report an unwanted call
- Federal Trade Commission. Report telemarketing and robocalls at donotcall.gov or by calling 1-888-382-1222. These are the reports that feed most of this site.
- Federal Communications Commission. File an unwanted call or text complaint at consumercomplaints.fcc.gov.
- Your phone carrier. Most carriers offer free spam labeling and call blocking, and some let you forward spam texts to 7726 (SPAM).
- Your state attorney general. Most states have a consumer protection office that takes complaints about telemarketing and scams.
Other reported numbers in area code 866
| Phone number | Complaints | Topic | Last reported |
|---|---|---|---|
| (866) 711-1556 | 3 | Not specified | Oct 21, 2026 |
| (866) 771-6820 | 26 | Debt reduction | Oct 20, 2026 |
| (866) 677-1012 | 5 | Debt reduction | Oct 20, 2026 |
| (866) 771-7077 | 94 | Debt reduction | Oct 20, 2026 |
| (866) 771-6225 | 14 | Debt reduction | Oct 20, 2026 |
| (866) 704-0913 | 3 | Debt reduction | Oct 20, 2026 |
| (866) 662-1614 | 2 | Debt reduction | Oct 20, 2026 |
| (866) 242-7994 | 3 | Debt reduction | Oct 20, 2026 |
Is this your number?
If you own (866) 454-8855 and believe it is being spoofed, tell your carrier and keep records of the complaints you receive. You can also contact us through the site to add context to this page.