Unfortunately, there are no mobile networks in Turkmenistan that currently support eSIM for travelers. Turkmenistan is known for its highly restricted internet access and limited telecommunications infrastructure, which impacts the availability of modern services like eSIM. This means you won't find a "Turkmenistan eSIM" option for seamless connectivity from providers like MTS Turkmenistan, Altyn Asyr TM, or AŞTU AGTS.
Travelers to Turkmenistan should plan for significantly limited internet and mobile access. Your best option for communication may involve procuring a local physical SIM card upon arrival, if available to foreigners, or relying on Wi-Fi where it can be found, often in hotels. This unique situation highlights the challenges of staying connected in this particular destination.