Sounds like someone from a South Asian country.
May 01, 2019
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Do Not Call and Robocall Complaints
FTC Data
At least 92 consumers from California, Texas, Ohio, Washington, Colorado, and 10 other states reported phone number 866-478-4372 to the Federal Trade Commission. 64% of complaints reported the call or text message as a robocall or recorded message. The last complaint was on August 23, 2020.
Complaints by State
California
15
Los Angeles, Lancaster, Modesto, National City, Sacramento
Texas
14
Fredericksburg, San Antonio
Ohio
13
-
Washington
11
Sequim
Colorado
9
Arvada
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Repeated phone calls - no message ever left.