I would class it as spam. Someone supposedly doing a survey "on behalf of our local council". Fat chance of that being for real. If it was, they would have used the Shire's name in full.

Caller: As mentioned above

Calling on a Sunday? I don't think so, blocked

Caller: Can Tarr? Research Centre

They did not leave a message.
If actually a research org, then my being on the Do Not Ring Register would hold no weight. As if it ever does ! (having worked in call centre I know how that is ignored).
I get so many of these time-wasting calls every day. Now blocked.

Called at 8pm, hung up immediately after answering. Called for 20 seconds in the past, so I can only assume it was a spam call at best.

I’m in another country for a few weeks so I answerred this number. They hung up immediately no message left

Unknown, hung up before I picked the phone up.

Ii told them I didn't have a council as I lived on an island. They were not very happy with that

Called at 7.55pm, rang for short time and hung up. No message left... now on blocked caller's list.

Tried calling me at 8pm at night. Phone blocked it, itself. Guess it knows it's a spammer

Caller: Spammer

Person said they are doing a survey but said they were having technical problems and would have to call back later. Translated, this means hi, just wanted to get you to say a few words so we can record your voice and add it to some other personal data we already have on you. Eventually we'll sell it to someone who'll use it all to steal your identity.

Caller: Kantar Research

Says there doing surveys for Someone.
Be careful I suspect information ends up in China

Caller: Kantar Market Research

Missed call, called back and their voicemail message identified the caller as Kantar Market Research. While Kantar is a legitimate business, whether this caller is or not is a different story.

I did not answer and when no message was left, I immediately blocked the number.. a few seconds later, the same number called my mobile. I declined the call. These scum bags need.to be stopped!

Get a life then bury yaself in it, where do these fools come from?????

No message, no response when called back - SCAMMER!

Caller: Kantar or Cantar

They rang whilst I was having my dinner, so I answered said they were doing a survey for our local Council, most likely a scam, as our Council has just done a survey in which they sent all residents across the Shire to answer and fill in

Caller: Scammer

Yep. Scammer.

Spam call with survey from local council? Really?? The 03 99...gave it away

will class it as spam and ignore