Why does my phone already know my neighbor's number?
I just met my new neighbor for the first time, and when we exchanged numbers (by me texting her number) my phone (Pixel 8) showed her full name with a tilde in front of it below the phone number. She's not in my contacts. Where did it get that name from?
GDPR is about/against unsolicited sharing of personal information. If OP's story were in the European Union, that would be a blatant breach of privacy, and the (phone company?) who provided that name would be facing a gargantuan fine.