Plimmiri, Greece

How the Internet Reaches Plimmiri, Greece

Plimmiri is a coastal settlement in southern Rhodes, on the southeastern Aegean island that sits near the maritime boundary between Greece and Turkey. As a coastal location, it serves as a direct submarine cable landing point, meaning international and domestic internet traffic arrives at Plimmiri via an undersea cable that comes ashore here rather than being routed overland from a distant hub.

Plimmiri is served by a single submarine cable, Thetis, which connects it exclusively to other landing points within Greece. This makes Plimmiri a domestic inter-island cable terminus rather than an international gateway — all of the traffic passing through Thetis travels between Greek locations, stitching together islands and mainland points across the Aegean.

The Cable Serving Plimmiri

The Thetis cable spans 660 km and reached ready-for-service status in 2022 (draft). It connects Plimmiri to five other Greek landing points: Aethos, Agios Sostis, Baxedes, Ermoupoli, and Filizi. All of these termini are located within Greece, making Thetis a domestic submarine cable that routes traffic between Greek islands and coastal communities across the Aegean rather than connecting Greece to foreign networks.

Regional Context

Greece hosts 13 submarine cables across 30 landing points, with the first cable in service since 1996 and an average cable length of 3,317 km. Plimmiri sits at the smaller end of this national picture, served by only one cable compared to more connected hubs such as Chania (5 cables) and Athens (4 cables). Among its regional peers, Plimmiri is comparable to Aethos and Agios Sostis, which are also single-cable landing points — and notably, both of those locations also land the Thetis cable, sharing the same network segment as Plimmiri.

What This Means for Connectivity

Because Plimmiri is served by a single submarine cable, all of its submarine-carried internet traffic flows through Thetis. An outage on this cable would sever the undersea connection between Plimmiri and the other five Greek landing points it connects to. The destinations reachable via Thetis are entirely domestic — inter-island and coastal Greek locations — meaning Plimmiri's path to international internet traffic depends on onward routing through those connected Greek nodes, particularly hubs like Ermoupoli, before reaching cables with international reach.

Understanding Plimmiri's position illustrates how domestic submarine cables function as a distinct layer within a country's internet topology — not every coastal landing point is an international gateway, and many serve the equally important role of bridging islands and remote communities to the national network.