i have been getting many calls that don't leave message from phone number that starts with 0489 902 ***. numbers ending in 645, 644, 597, 598, 599, 600, 435, 434 since mid-April. sounds suspicious.

My number is being called 2-3 times a week for the last two months, started in March 2023. The calls are coming from 0489 902 xxx where 'xxx' were either 644 or 645 or 691 or 432 or 200. None of those numbers belong to anyone I know; the caller never left a message. I do not answer any number I do not recognise; I block number of callers who call me more than twice without leaving a message. Works well for me.