Can I block calls from an unknown number?

[Linka88]

Hi!

I've been getting a lot of calls lately from a "(no number)" at strangest times of day (late at night or early in the morning). When I pick up they disconnect. I think someone's pranking me. It's really distracting though.

I was wondering if there's a way I can block calls from unknown numbers?

I have a really old nokia cell, so I can't download blocking apps, but a friend told me that my provider might have a service like that.

Thanks in advance.

[SamsungExpert]

Hi! @Linka88 ,

It's possible to starting a research visit then the next page, https://www.vodafone.nl/support/overlast-melden/telefonische-overlast-melden.shtml

But there are some obligations, in a period of 3 weeks you also need 3 sms or more but let it be in 3 weeks. Older text messages won't be registered.
If the technical staff has the phone number which is giving you trouble then they will send them a warning.

You can find more information on the page itself. But it's Dutch otherwise you can translate it via Google but maybe the translate isn't always correct.