Straight talk iPhone 8 but want to switch carriers

[spinfly]

I bought an iPhone 8 thru Straight Talk at Walmart and it was activated with a Verizon sim. I travel to an area frequently that only has AT&T service. Can I switch out my sim for a Straight Talk AT&T sim and use the phone?
Thanks.

[ST - Larry]

Hi spinfly. My name is Straight Talk Larry. I read your post and I am sorry you’re having some problems. To further assist you, please check your forum inbox for a message. Click on "New Messages" beside User Control Panel to view your forum inbox. You may also text the key word HELP to 611611 to view our self-service menu with a list of help key words with valuable information. Thank you.