Cspire sucks traveling!!! I would go to Florida or even TN and have no service. It's sketchy anywhere and everywhere outside of Mississippi but do not think about leaving the USA using Cspire. Just plan on buying a burner phone when you get to where you are going.
I was going out of the country last Christmas to Costa Rica. I called Cspire to ask what I needed to do and they said nothing. When I landed anywhere outside the US, I would get a text from Cspire that offered me options for servcie. I looked up the cost online and they were going to charge me $20 a day per phone which pissed me off but I was going to spend it.
That's expensive for some texting, navigating and translating devices but guess what. Not only did I not get that text, I could not even log onto my account using WIFI or get them to answer my phone call. They blocked me while I was out of country from even calling them. WIFI only that trip, luckily we were traveling with my wife's daughter and her family and they had T-Mobile which we used for navigating and translations. I downloaded some limited translating apps but they operated somewhat limited when not connected to internet.
I think they paid $10 a week per phone for texting, internet with limited calling or something ridiculously cheap compared to Cspire's out of US prices.
I called Cspire as soon as I landed back in the States to figure out what happened. They just said they don't offer service in Costa Rica. It would have been nice to know about that when I called them before I left. .
We dropped Cspire and went to T-Mobile. They offered free iPhone 15s and saved us $40 a month on our bill. Service is a bit sketchy in the back woods but it's good enough locally with Wifi support and it's far superior traveling.