Who called from 2139736461

Kept calling my cell number repeatedly  back to back, until I sent the call to voice-mail.  They left no message.

Two calls this morning, 34 minutes apart.  No message left.

Received a call on my cell  from this # at 10:28 am PDT. Didn't answer. 30 minutes later received a call from NJ from "your credit card company" about lowering my interest rate. Seems not related to the 1st call but now my cell phone is getting spammed?!

213 973-6461..just called my number, when I called back it's just a busy signal when you call back.

Called from green energy offering a free cruise for doing research survey.  Then switched to the cruise place where they wanted credit card info.  No way aaahhhhh