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Install your As 21 eSIM before departure so you land already connected. Check our phone compatibility guide to confirm your device supports eSIM, and browse our travel connectivity blog for more destination tips.
Most eSIM-compatible, unlocked phones released in the last few years will work in As 21. Dial *#06# on your device and check for an EID number to confirm support before you buy.
You can install the eSIM before you leave home, then activate it once you land in As 21 so your validity period starts exactly when you need it.
Yes. Your As 21 eSIM plan runs alongside your existing SIM, so you keep your home number for calls and texts while using local data.
First confirm your device is unlocked and eSIM-compatible, then check your network settings. If it still doesn't connect, contact our support team with your order number for help.
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