I've been getting election poll calls from other numbers, and this one is one digit different to another I got that had a lot of complaints from them so it's likely - but yeah I never answer unknown numbers anymore and frankly I'm not suffering from reducing access to me.

No message left. Scammer.

Answered this unknown number and there was a pause with some call centre noise then hung up. Blocked 🤬

Received a call from this unknown number who rang for a short time and hung up before I could answer. I did not return the call.