Who called from 3100487598

This is a fake number but it called and I ignored it. They didn't leave a message.

Fake caller id.  Getting these type of calls more often now. Looks like should be real number, but is often missing a digit or has one impossible digit.  Generally NEVER answer unrecognized number calling in.

Received incoming call from this number on a cellular phone - that is also registered to the do not call list. Did NOT answer the call and didn't recognize number.

This number showed up yesterday in my missed calls list as +013100487598. No message, I didn't call back.

Name unknown but caller id reported number as 310-048-7598. Received a call today but did not answer and it rang 6 to 8 times. I have received several calls from this number recently but I do not answer unidentified numbers. Apparently this is an invalid number.