Who called from 2120123456

keeps calling, no answer when the phone is picked up.
starange...

any way to report this to a call center?

got call from this number which was from a job recruiter but when called back got a message that stating could not get through or get busy signal.

Caller did not leave message.

Despite that the number looks phony it is from legitimate job recruiting company  Park Hudson International, LLC.

Same got a call but no voicemail.