Texting worked fine till a few weeks ago.How can I fix this?

[AC Question]

Texting worked fine till a few weeks ago.

Samsung Galaxy 3
Carrier is Lyca
My text is not going through to my son. He has an IPhone. I can text other people and they are getting through.

 

[B. Diddy]

Re: Texting worked fine till a few weeks ago.

Welcome to Android Central! Did you recently move over from an iPhone yourself?