I received call on my landline from Liang, Liying, no voicemail. Interesting fact: from my Cell # I've made inquiries about car donations to KERA (the PBS station) and carwizard which handles many 501 c 3 charities' car donations, allegedly. Within half a business day I received this call on a phone number I did not divulge.

Probably an information aggregator who sold your (and mine) contact information, who cross-referenced other contact information already available. Could still be a Scammer, nonetheless.  I agree with blocking as the only viable solution. My info is on every possible "do not contact" list available, but sometimes, like with KERA, you have to opt-out after the fact. Just found that out. Guess you end up donating to them "one way or another."