International SMS Charges
I'm currently in Poland, and have cell phone through Sprint in the United States. I know it is no cost for me to send text messages to the people here (My carrier has some deal with a local network that allows me to roam for free with some services), but I cannot find anything online to determine if they will be charged for texting my USA number, even though I am next door to them. Would I count as international texting even though I am on a local network for them?
I've seen some questions that are similar, but for calling, and even then the answers were.... divided. As seen here
Best Answer
Yes, texting you will count as international texting (even if you stay next to a texting person!) and correspondingly charged (if there are different rates for national and international SMS what is not always the case).
It is not your location what counts but your phone number and it remains foreign.
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