I have received this call more than several times. Thank you for reporting that indeed it is TMobile. Puts my mind at ease. Ending up calling back on a corporate phone to confirm. *Peace to all.
I received 3 calls from this number - they left no vm. I called TM and they could not identify it. If TM calls, they shld leave vm or identify themselves.
I do not answer a call if I do not recognize the phone number, specially if I don't recognize the area code. If it's T-Mobile, they should have their name on the phone ID.