Which network actually reaches where you live and travel — and the places where no network does.
Opensignal and TRCSL dataA plan is only as good as the signal behind it. Sri Lanka has near-total 4G coverage on paper — but that figure counts people, not places, and the operators differ far more on reach than on speed.
The colours are what you can buy, not what you will measure. Districts are shaded by the best service commonly available in their main towns. Signal varies far more within a district than between two neighbouring ones.
Population coverage is not land coverage. "4G reaches almost everyone" is a regulator's metric counting inhabitants. Parks, ridgelines and estate valleys are not in that number, and neither is the road between two towns.
Opensignal measures handsets, not maps. Its scores come from real users, so places nobody goes are under-represented — and Hutch's lower score partly reflects a smaller, more urban user base rather than pure network weakness.
Coverage is not capacity. A rural tower often carries too many people. Four bars at 8pm in Monaragala is not the same 4G as four bars in Colombo.
5G barely exists yet. Commercial only since December 2025. Do not pay extra for a 5G plan outside the Western Province without checking that your own street is lit.
| Metric | Operator | Value |
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| District | Tier | Meaning |
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