The nice part about some of these prefix numbers is that they are obvious junk calls. Moment the screen shows the ID they get added to the call block list.
I get the same calls from 1-213-426-1070 and 1-213-213-5994 almost everyday day and night. The 213-1070 calls after 9:00p.m. I returned the call this afternoon to see who was calling and voicemail said "all our (agents) are busy please leave your phone number.) I am so sick of these calls!