Who called from 3079200621

I received two calls from 307.920.0621. As it turned out I wasn't able to answer either call.  Given I have friends all over the great USA and other countries. For the most part, friends generally leave a message. My personal message on my cell states my first name only, no message from this caller. Yeah my curiosity got me, called their number. Their message/reply on their "cell " phone was, "This subscribers number is not in service...call at a later time".  Weird right, after missing the second call within 15 minutes after their number came up again. So now, 307.920.0621 is permanently BLOCKED. Thank you. SKM

LOL

Someone called from this number last night about 11:00 PM. Woke me up from sound sleep but didn't answer. They left no message. Frustrating.

307-920-0621 keeps calling on my cellphone which is on the do not call list. It is a quick ring and then a hang-up with no voice-mail.

I did the needful using the following:
https://www.donotcall.gov/Complain/ComplainCheck.aspx

Same incident... got a call from this number for the second day
Calls, but no VM!