Ask HN: I SMS'd a number and it automatically gave me his name

2 点作者 deadghost超过 7 年前

I sent a SMS message to a number that is not in my contacts and my contacts app Contacts+ automatically fetched his full name. How is it doing this? I do have FB running and the receiver has his number set to 'Friends only' in FB.

1 comment

rbanffy超过 7 年前

Can you try again with other numbers and see what happens?<p>Then, from a network you can capture traffic, try it again.