Mobitel 399 Package Sri Lanka: Data Rollover & Free Viber Guide
If you are looking for the Mobitel 399 Package, you are most likely searching for one of SLT-Mobitel’s foundational 30-day value plans. Depending on your day-to-day requirements, this specific price point operates across two popular variations: the official 399 Anytime Data Rollover Pack (offering dedicated web data that carries over if renewed early) or the 398 Any-Network Sachet Pack (which frequently rounds up to Rs. 399 at retail counters to offer a balance of voice calls and texts).

Additionally, activating the data variant instantly unlocks a free messaging perk on Viber, making it an exceptional choice for maintaining active text lines on a budget.
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SLT-Mobitel Rs. 399 / 398 Package Variant Comparison
| Plan Characteristic | Option A: Rs. 399 Anytime Data Rollover | Option B: Rs. 398 Voice & Text Sachet Pack |
|---|---|---|
| Retail Cost (With Taxes) | Rs. 399 | Rs. 398 (Often sold as Rs. 399 over-the-counter) |
| Validity Period | 30 Days | 30 Days |
| Data Allocation | 5 GB Pure Anytime Data | None included |
| Data Rollover Feature | Yes (Unused data rolls over if renewed before expiry) | Not applicable |
| Voice Call Allocation | None included | • 300 Minutes to Any Network • UNLIMITED Mobitel-to-Mobitel Calls |
| SMS Text Allocation | None included | • 50 SMS to Any Network • 50 Bonus SMS Mobitel-to-Mobitel |
| Special Network Perks | FREE Non-Stop Viber messaging (capped at 1Mbps) | None |
Step-by-Step Activation Instructions
Because these options serve entirely different communication needs, pick the correct method below to activate your preferred tier:
- To Activate the 5GB Data Rollover (Option A): Dial the central internet gateway code
#170#, navigate to Internet Plans, select Data Rollover Plans, and opt for the Rs. 399 package. Alternatively, you can reload exactly Rs. 399 through an online banking application or the SelfCare portal. - To Activate the Voice & Call Bundle (Option B): Dial
#147#, head into the Subscription Add-On section, and select the New Voice Plan (Rs. 398). You can also request a direct reload of exactly Rs. 398 at a local communications shop.
Crucial Rollover Rule: To keep your unused data from expiring on the 399 data plan, you must re-activate the identical plan before the exact minute your current 30-day window closes. If the plan expires completely, your accumulated data pool resets to zero.
Official SLT-Mobitel Support Links
To monitor your data consumption, view ongoing TRCSL tariff approvals, or securely process an online reload, check out the official channels below:
