Think this is very Men are from Mars - Women are from Venus.
He's sent the "I'm here safely" text. He called the next morning. He has done all he perceives he needs to do.
If I had gone away I would have texted to say - on train, at airport, about to take off, landed, through customs, in taxi, at hotel etc etc etc
It is far more about my need to communicate - than his to know where I am. I am a phone addict - he uses it rarely for brief, essential communication. He would never do as much texting as I do and probably wouldn't respond to all of my minute by minute account of the journey!
I really think this is a case of different expectations of what contact is needed due to different communication styles.
I really think no news is good news. Try not to take it personally, he isn't you and he doesn't think the way you do... His lack of texts is not a sign he doesn't care - he just thinks differently to you and probably doesn't appreciate how much a text or call means to you. In his mind he is clear when he is coming back and you know too, so he probably doesn't feel the need to communicate much in between.
Men are from mars and women are from Venus!
Not a lot can be done now - but next time he goes away I would be clear with him and get him to agree to regularly text or call e.g. Every morning.
You'd both then be a lot happier and know what communication is expected.