What the January 2026 test found
| Network | What it led, as reported from Opensignal's January 2026 report |
|---|---|
| Three | Download speed (60.9 Mbps) and 5G download speed (198.9 Mbps); joint coverage lead |
| Vodafone | Joint coverage lead with Three |
| eir | 5G coverage and 5G availability |
The report covers October to December 2025. The figures above are as reported by industry press and the operators; the full award list is on Opensignal's page.
Cheaper brands on the same networks
| Network | Cheaper brand that uses it |
|---|---|
| Three | Tesco Mobile |
| eir | GoMo |
What to check for your own use
- Coverage where you live and travel. Rural Ireland is where the networks differ most; ComReg, the regulator, publishes a coverage map by address.
- Bill-pay or prepay. Prepay needs no credit check, which suits anyone new to Ireland.
- Roaming. Within the EU and the UK, check how your plan treats roaming before you travel.
Questions people ask
Which is the best mobile network in Ireland?
In Opensignal's January 2026 report Three was fastest and shared the coverage lead with Vodafone, while eir led for 5G availability. Check coverage at your own address on ComReg's map.
Is GoMo on the eir network?
Yes. GoMo is eir's brand and uses its network. Tesco Mobile uses Three's.