Billion Connect does not provide Ukraine eSIM plans that include a phone number or SMS capability. The provider offers only data‑only eSIMs for travelers visiting Ukraine.
If a data connection is sufficient, popular VoIP apps such as WhatsApp, Telegram, and iMessage can typically be used over the data link for voice and messaging. Some destinations may block or restrict certain apps or VoIP services, so travelers should verify that the applications they rely on are accessible in Ukraine before purchasing.