Blocking nuisance caller

[Talltim]

Can you block multiple extension numbers of a nuisance caller?

[bristolian]

You can block any inidividual number using your phone's call-blocking function.

[Talltim]

I was wondering if you can block multiple extension numbers as every time I block a number they just use a different extension number. 

[bristolian]

You will need to block each individual number, this is partly why spammers use different numbers.

There may be an app you can install to block number ranges. Your alternative is to change your mobile number - it depends what the greater irritation would be.

[XRaySpeX]

You may block individual nos. but you can't block the extensions they use to call you from.