Guy sends out a group text to his contacts to let them know the kid is on the way ["She has dilated to between 5-6."]
One of those numbers is out of date, and at first the new owner of that phone number tries to get off the thread, and then is like, "Eh, you know what, let's celebrate," and he shows up at the hospital with his brother and some baby gifts to meet these strangers. Warm viral feelings ensue.
A Family Texted The Wrong Number About A Baby's Birth But This Guy Showed Up Anyway [buzzfeed, image: deorick williams]