Tajikistan eSIM

Yes. Badakhshan is a special administrative region that needs a permit separate from your visa, and the checkpoints along the route genuinely ask for it. Many travellers request it together with the visa before departure; applying later means a stop in Dushanbe and extra days. Keep both a file and a paper copy, because most checkpoints sit where you cannot open your email.

People do it, but it needs more preparation than a normal road trip: long unpaved sections, fuel stops far apart and workshops only in the bigger towns. Most travellers hire a vehicle with a driver who knows the route and where spare fuel is sold. Save the rental company's and your guesthouses' contact details offline before you leave Dushanbe or Osh.

Take it seriously: the route lifts you from low-lying Dushanbe to a plateau over four thousand metres within a few days. Most travellers ascend gradually and spend a night in Khorog first. Build an acclimatisation day into the schedule, tell the people you are travelling with if something feels wrong, and do not count on phoning for help, because the highest sections have no signal at all.

Most plans here start when the phone first connects to a network at the destination, so you can install in advance at home and switch it on after landing. Each plan page states its own rule.

No. The eSIM is a second line, so you keep your home number for SMS OTP. Turn off roaming data on the home line and set the eSIM as the data line.