Why this mystery number keeps slipping past blockers

Summary — +16083716666

Risky
Caller Name: Unknown
Caller Type: Unknown
Location: United States — Wisconsin
Reviews: 276
Carrier: —, Region: Wisconsin

Expert Opinion

Watch out—calls from +1 608‑371‑6666 are a red flag. This number is repeatedly used as a spoofed gateway for various telemarketing and scam scripts that slip past call‑blocking services like Nomorobo. Callers often hide their identity, use heavy accents, and shift quickly to a different script after one ring, making it hard to verify who’s on the line. The safest move is to let the call go to voicemail, never share personal or financial details, and report the number to your carrier or the FTC. Keep your blocker active and consider adding the line to any personal do‑not‑call list.

Caller Categories

Unknown
56×
Scam
46×
Telemarketing
41×
Spam
26×
Harassment Call
14×

Caller Names

Unknown
53×
nomorobo
16×
out of area
IRS (scam)
608-371-6666

Details

Location: United States — Wisconsin
Number type: ratings.phone_number_type_list.2

Rate this number — +16083716666

Recent Reports for (608) 371-6666

16083716666 Unknown

Since I do not take sleep medication, this call must have been intended for someone else

16083716666 Unknown Only the phone number showed in caller ID.

Verizon's call blocker was bypassed, allowing a call to ring through despite being intercepted

16083716666 Customer Service Social Security

I got a message from a phone number, 608 371 6666

16083716666 Telemarketing

My business number has been called multiple times, yet no message or callback number has been provided, which is puzzling since none of my employees use equipment related to sleep apnea

16083716666 Survey SleepMed Therapy

This number is used by SleepMed Therapy to contact patiens, they always leave a polite message with a toll free number to call back, they call like twice a year to check on the equipment and stuff, wish caller ID would show SleepMed so we wouldnt miss the call

16083716666 Telemarketing

After three attempts to get past my call blocker, they finally succeeded, likely using a different number each time, and left a hostile message when I directed the call to voicemail, including insulting language

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