Zong 4G/LTE via Hotspot
The DL speed started around 20 MB/s as well, but for some reason went down to around 10-12 MB (i retested two times, but speed started and stayed around these marks since then). I think it is being throttled (possibly because I'm using only 3G bundle). Will try it again later. Upload speed & PING are as glorious as you can see.