When using NumberSync to make or receive calls to:
- The U.S., Puerto Rico, or the U.S. Virgin Islands – We won't deduct from your smartphone plan minutes, even if you're traveling abroad and call a U.S. number.
- An international number – We charge international long-distance rates based on your smartphone plan or international option. It doesn’t matter where the call originates.
: Data charges apply if you use a tablet that isn’t connected to Wi-Fi to make or receive NumberSync calls. This includes standard U.S. data rates and international data rates when traveling abroad.
View NumberSync bill charges
Go to Your bill
. Check the Voice usage
summary section, then look for NBSS prefix in the bill details section to identify NumberSync calls. See all important details