I had up to 10 calls a day on my mobile from 02841585? each call with differing last two digits.
They must have to run out of digits soon.

numerous calls from this number but hangs up. Dialling the number yields automated answer. Looking like spam.

every evening we receive between one and three calls from 02841585-- with last 2 digits changing with each call. After 3 rings it stops.

Numerous calls since 7 Sep 12 with no one on end of call when picking up. Probably computer initiated. Caller ID shows this basic format 08842398XX. Once home phone rings 4 times it stops and it is immediately followed by my mobile ringing in the format 02841585XX also hanging up after 4 rings. These two numbers have to be linked.

this number rings every day and hangs up when answered who is it