Who called from 2347090126

Full number was 2347090126504.  Called early in the morning and I was stupid enough to answer before looking at the caller ID, it was someone from Nigeria.  I quickly hanged up but they keep calling.

I keep getting calls from 234-709-8101344 at 1 am in the morning

Full number was 2347090126504.  Called at 4:30 AM - I ended the call but they keep calling until I put in a block.

I got a call from 234-709-4065305...??? why does the # appear that way and WHY ARE THEY CALLING ME UGH!!! anyway... she was speaking something else besides english. She hung up when I said "wrong #"