SMS Sending to iPad Error

I recently traveled overseas and purchased a SIM card for my iPhone while I was traveling. When I got back to the US, I swapped out the overseas SIM with my default Verizon SIM card. I hooked everything back up, activated iMessage across all my devices, but I noticed regular texts were not coming through to my iPad when all devices were on the same wireless network.

iMessages sent to my phone number go to both devices. It's only SMS that isn't. I've confirmed in the iPad settings it says I can be reached and send from my phone number.

Any ideas why that connection is broken and what I can do to restore it?