[jto1218]

I've been using a free alternative to Nomorobo called Hiya that's been working really well, for what it's worth.

[gonehome]

I think Hiya uploads your contact list to the cloud - I'd rather pay the $2/month rather than rely on an unknown business strategy.

[sah2ed]

Agreed, but how do you know for certain they don't surreptitiously upload your contacts after you have granted permission?

Sounds like you are on iOS?