Spam calls are likely not even affected by leaked numbers. Source of suspicion: My partner and I have phone numbers in close numeric vicinity, and deliberately

Spam calls are likely not even affected by leaked numbers. Source of suspicion: My partner and I have phone numbers in close numeric vicinity, and deliberately use one for public purposes and the other one is not known outside of a very close circle of family. We still get spam on both numbers within short time frames - so I'd say it's likely spammers just auto-dial through.