JamboSim eSIM Data Plans for Sri Lanka

JamboSim does not offer a truly unlimited data eSIM for Sri Lanka. The plans that carry the “Unlimited” label provide a high‑speed data allowance of 3 GB per day; once that daily cap is reached the speed is reduced to 1000 kbps.

If a traveler needs a larger data allocation with no speed throttling, JamboSim provides fixed‑data options such as the 100 GB plan for 180 days, the 50 GB plan for 90 days, and the 20 GB plan for 30 days, all of which have unrestricted high‑speed data throughout their validity.

Yes, JamboSim sells Sri Lanka data plans that include a phone number and SMS functionality. The available plans range from 1GB for 7 days to 20GB for 365 days and are priced between $11.99 USD and $105.99 USD. Each plan supplies a phone number with the dialing code +1, allowing outbound calls and outbound SMS messages; inbound voice and SMS are not supported. The numbering is a US-based phone number rather than a local Sri Lankan number. Travelers who need specific call or messaging features should verify the details directly with JamboSim before purchasing.

JamboSim provides 6 single‑country plans specifically for Sri Lanka and an additional 48 multi‑country plans that include Sri Lanka as one of the covered destinations. The plans span a price range from $1.99 to $125.99 and data caps from 200 MB up to 100 GB, with validity periods that can extend from 1 to 365 days. The single‑country offerings typically feature fixed data amounts, while the multi‑country options can be dedicated either to fixed data caps or, for some choices, apply a daily data limit rather than a total cap. Both sets of plans commonly permit tethering, though a reduced speed of 1000 kbps may apply in certain cases.