Left some sort of '.code' for me I know nothing about.

Til tock code

Left me a 6 digit code

A series of different mobile numbers are being used to send random 6 digit codes without any reference to the originating party. This phone numbers is one of them. My guess is that they want the recipient to call/text back on one of these numbers to enquire what the message is about...

What is this I keep getting a message with a code for something. I have No idea and pissed off my Telephone company can't protect me considering I give them $$$$ every year like 3k.