I have been in search of a legit caller ID option for my android phone and I can't seem to find much info out there. Personally, I like to know who is on the other end of a phone number trying to contact me; especially catching spam callers. I tried the true caller route (I know, its not self hosted) and its good at what it does but the issue is the app. Packed full of ads and probably trackers, and it kept forcing to take over my dialer and SMS even though I had everything set to prevent that. Incredibly annoying. App wise beyond that, I feel they all may be similiar and also be paid services.

So what are the options for folks who just want a legit, no nonesense caller ID and spam call blocker for their android phone? I was just browsing different ports and protocols for the hell of it and stumbled upon this NCID protocol that's typically associated with port 3333. Now there isn't much info out there on this though. Couldn't find any reddit or forum posts from people talking about it or those who use it. It seems kinda obscure....

If anybody has knowledge on NCID or basically ANY caller ID and spam blocking solutions for android phones, please chime in! Thanks