anyone know how to tell if someone blocked your number?

if you're also on whatsapp with them, that's a second set of clues. messages stuck on one grey tick for days, their profile photo and last seen gone. same caveat as above, someone who's simply changed privacy settings looks similar, but if it lines up with the calls going straight to voicemail it's fairly telling.

There's no test that proves it, only signs that pile up. Calls that ring once, or not at all, and then go to voicemail every single time is the main one. Texts that stop showing as delivered is the other. Calling with your caller id hidden is about as close to a check as you'll get — if that rings through normally when your own number never does, draw your own conclusion. The frustrating bit is that a phone switched off, or somebody with do not disturb on all day, looks identical from your end. So give it a few days before you take it personally.