I have a Nexus 4 running rooted Android 5.1.1. I'm on "Pay_for_what_you_use" carrier (Ting) and recently read an article regaridng how much data is consumed by Android apps pulling ads off the internet. I downloaded and installed AdblockPlus. After reading several tutorials on setup of ABP, it appeared to me that it only works on a wifi connection, which I really don't care about.. When on wifi, the ads are *merely* annoying, whereas on 3G, they're EXPENSIVE (and annoying).. Documentation for ABP seems to infer that a rooted phone can block ads coming in via 3G, but it's about as clear as mud to me. When ABP is running it notifies me thats its waiting for a proxy connection on port 2020, I tried going into the APN for my 3G connection and adding localhost and port 2020. This did not work... I don't know if I'm doing something wrong or it just doesn't work this way.. I'm familiar with proxies, being a retired sysadmin.. Ideas??