Who called from 5734332544

Calls come in and never leave a message.  I call back and number is disconnected at customer's request.

"Communications" is the caller ID, they did not pick-up when I answered.

robo calls never leaves a message, no answer if called.

this is a list of numbers these people call from
573-433-2542
573-433 2560
573-433-2072
573-433-2534
573-433-2535
573-433-2538
573-433-2532
573-433-2991
573-433-2544

they never leave a msg

Called our business and wanted to talk to someone about the phone lines. Would not leave a message and the number is not in service when we called back. Birch Communications has been trying to slam our phone service recently, so maybe it was them again. The only thing on CID was the word "COMMUNICATIONS".