This number called me @ 4am and said nothing I tried calling back and kept getting A busy singnal

same here 3am first time though

i got a call from this number at 4 in the morning.

Called me as well the [***]

This number seems to be From First Data credit card processing. It's a credit card gateway for merchants that accept credit cards.  If you are a merchant that accepts credit cards, First Data is probably trying to get in touch with you regarding your account. Otherwise, they probably just have your number by accident .