CADMOS

Overview

CADMOS is a short regional submarine cable connecting Cyprus and Lebanon across the eastern Mediterranean. Spanning 230 km, it links two landing points in Lebanon with one in Cyprus, serving a corridor that bridges the eastern Levantine coast with the broader Mediterranean network.

Route and Landings

In Cyprus, the cable lands at Pentaskhinos. In Lebanon, it reaches two separate landing points: Beirut and Jdaide. No laying order between these sites is implied by the route designation.

Ownership and Operators

CADMOS is jointly owned by a consortium of eight stakeholders: A1 Telekom Austria, AT&T, Cyta, Deutsche Telekom, the Lebanese Ministry of Telecommunications, Orange, Sparkle, and the Syrian Telecommunications Establishment. The breadth of ownership reflects the multinational character of submarine cable investment during the mid-1990s, bringing together national telecoms ministries alongside major European and American carriers.

Technical Profile

No capacity, fiber pair count, or supplier information is available for CADMOS. Given its 1995 ready-for-service date, the cable predates the large-scale dense wavelength-division multiplexing (DWDM) deployments that became standard on later systems in this corridor.

Status and Timeline

CADMOS entered service in 1995. Now operating for approximately three decades, it is one of the older submarine cable systems still active in the eastern Mediterranean.

Regional Context

The Cyprus–Lebanon corridor that CADMOS serves has seen substantial expansion in submarine cable infrastructure since the cable first entered service. More recent systems operating in this wider region include Hawk (2011), MedNautilus (2001), Blue (2023), and PEACE Cable (2022), as well as IMEWE (2010), which lands in Lebanon, and the forthcoming Medusa Submarine Cable System planned for 2026. These later cables are considerably longer and carry higher capacities than CADMOS, reflecting the growth in bandwidth demand over the intervening years.

Measured performance over the last 60 days, based on 105 ping tests, shows an average round-trip latency of 170.5 ms, with a best recorded latency of 118.1 ms. For a cable of only 230 km, this average is relatively high and may reflect routing or network path factors beyond the cable segment itself.

Strategic Role

CADMOS provides direct submarine connectivity between Cyprus and Lebanon, a short but geographically distinct crossing of the eastern Mediterranean. With two landing points in Lebanon at Beirut and Jdaide, the cable offers some degree of geographic redundancy on the Lebanese side. Despite its age, CADMOS remains part of the cable infrastructure available to operators and institutions in both Cyprus and Lebanon for traffic exchange across this corridor.