Caller: Active Office internet?

Says it is Active Office ? (UK is only one i can find on the net) a telecommunications and internet provider.
Repeatedly calls out of hours then hangs up- no one actually speaks- definite nuisance or scam call. report to telcommunications ombudsman

Caller: Scammer called me

They knew my name and wanted to talk about my internet connection.
Not sure how they got my name but I don't hold an account with those scammers!

Caller: "Your Internet ADSL/NBN Provider"

Scam wanting to "upgrade your internet connection".

Caller: Scam number

It's some sort of internet company but automated so I'm guessing it's a scam

I called back number (03) 8202 5188 reached voice mail but did not say for what comapny.

Caller difficult to understand.