Who called from 2102456402

I called this number and it was for a survey. I pressed 9 as instructed to remove my number.

I don't know who it is but I also get calls from them.  San Antonio area.

Just got a call from this number.  Did not answer and they left no message.

Scammer collecting active phone numbers; if you call this number back, and/or select an number on the keypad, you've confirmed your number as active. The scammers then sell the active phone number directory to anyone, to include criminals.