Landing Point · IE Ireland
| Cable | Status |
|---|---|
| Rockabill | Active |
RTT measurements to this landing point from 2026-03-09 through 2026-05-10 — live ICMP round-trip time via RIPE Atlas probes. Recomputed daily. ✓ No anomalies detected in the monitored period.
| Probe | Location | Samples | Avg |
|---|---|---|---|
| #30294 | RIPE Atlas | 43 | 20.3 ms |
| #1014589 own probe | Almaty KZ | 6 | 112.6 ms |
| #1014597 own probe | Tbilisi GE | 6 | 72.7 ms |
| #1014969 own probe | Jerusalem IL | 6 | 81.2 ms |
| #1014473 own probe | Minsk BY | 5 | 85.8 ms |
| #1015523 own probe | Moscow RU | 3 | 61.2 ms |
| #1015563 own probe | Saint Petersburg RU | 2 | 75.6 ms |
Portrane is a small coastal village in Fingal, County Dublin, situated in the north of the county approximately three kilometres from Donabate. Its position on the Irish Sea coastline makes it a natural candidate for submarine cable infrastructure, and the village serves as a landing point for one submarine cable connecting Ireland to the United Kingdom. This short cross-channel link places Portrane within the broader network of Ireland's fourteen submarine cable landing points, which together host sixteen cables.
The single cable landing at Portrane, the Rockabill system, provides a direct connection between Ireland and the United Kingdom across a relatively compact corridor. At 221 kilometres in length, it represents one of the shorter submarine cable systems landing in Ireland, suited to a near-neighbour inter-country link rather than an intercontinental route.
Rockabill is a 221-kilometre submarine cable with a ready-for-service date of 2019, listed at draft status. It connects Ireland and the United Kingdom, making it a bilateral cross-channel system. The Rockabill cable is named in reference to the Rockabill lighthouse, a notable landmark off the County Dublin coast. With Portrane as its Irish terminus, this cable establishes a direct data pathway between the east coast of Ireland and the United Kingdom across the Irish Sea.
Among Ireland's fourteen submarine cable landing points, Portrane hosts one cable, placing it alongside several single-cable peers including Ballinesker, Ballygrangans, Castlefreke, and Clonshaugh. Dublin stands as the most connected landing point in the country with three cables, while Kilmore Quay hosts two. Portrane's single-cable status is therefore common within the Irish submarine cable landscape, where most landing points serve a focused rather than aggregated connectivity role.
Portrane functions as a single-cable terminus within Ireland's submarine cable network, hosting the Rockabill system and supporting direct connectivity between Ireland and the United Kingdom. The cable's relatively short length reflects the geographic proximity of the two countries across the Irish Sea, and the route it enables is a bilateral one rather than a multi-country chain. Portrane does not aggregate multiple cable systems in the way that Dublin does, but it contributes a distinct point of entry and exit for Ireland-United Kingdom traffic.
Within the Irish submarine cable graph, the presence of a dedicated landing point at Portrane for a cross-channel cable adds geographic diversity to Ireland's connectivity, distributing landing infrastructure along the east coast rather than concentrating it at a single node. This distribution across multiple landing points, each serving defined bilateral or regional corridors, characterises the overall shape of Ireland's submarine cable connectivity.
View actual submarine cable routing from Portrane, Ireland — with backbone nodes, distance calculations, and latency estimates
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