Who called from 2030063103

+02030063103 Received a call from this number between 20:00 and 21:00hrs on 5th Feb. Answered call but no response from caller, call terminated by caller. My feeling is this call was to establish if my O2 mobile number was live prior to sending unsolicited Texts / Media Messaging or selling number on to another company. A check showed this number to belong to Digital Mail Limited who appear to be based in London.

I had a missed call too last night @ 20:59.

Recieved call last night from this number, tried to call back and dead number??

+02030063103 called me last night at 22:13, i answered and the line was dead. didn't even try to ring back, what is this number????

got a call last night at 2230, no reply, called back, got the dead tone.