So I don't know if it's 2D or just a random anomaly but receiving international texts is a bit hit and miss for me. I've just recently been travelling around central europe and if anyone has been there and used wifi hotspots, a lot of them require validation via text. Out of about the 3-4 hotspots I tried over there I didn't receive a single text. Now I know texting was working as I was still receiving trains updates from back home.
Also just last night I set up 2FA on a lot of the services I use. I seem to be able to receive texts fine from Google and Github but Facebook was a no show. I've used my work phone (Telecom) instead and all texts are received fine via that.
Not really sure what's going on, but has anyone else had any troubles like this?