I too recieved a call from tsi 213-457-0352, It was my friend calling, she uses Vonage and her number shows up different all the time. I have learned that if a strange number comes up to call her back and 9 times out of ten its her. Vonage uses all kinds of different phone numbers from all over the country. Try asking friends and family if they use vonage or another digital phone service, it may explain some of the weird calls.
213-457-0352 number came up last week and again this week but it was someone we wanted to talk to, but this isnt the number they were calling from, makes me wonder whats going on. last week when they called it sounded like a circus in the background and he tried calling us again and got a spanish sounding something, not sure whats going on. I tried calling this number and its busy.