SEA-ME-WE 5

Overview

SEA-ME-WE 5 — short for South East Asia–Middle East–Western Europe 5 — is a major international submarine cable system operated by a multi-party consortium. It entered service on 15 December 2016, extending a lineage of SEA-ME-WE systems that have formed one of the world's most strategically significant cable corridors for decades.

Capacity and Design

The system carries a design capacity of 36.6 Tbit/s, with each fibre pair rated at 12.2 Tbit/s. That figure placed SEA-ME-WE 5 among the higher-capacity systems on its route at the time of its commissioning, reflecting the sustained growth in bandwidth demand between Asia, the Indian subcontinent, the Middle East and Europe — a corridor that carries a substantial share of intercontinental internet traffic.

Route and Significance

The SEA-ME-WE designation signals a cable that traverses one of the longest and most complex routes in the global cable network, crossing multiple ocean basins and connecting regions with distinct traffic profiles. The corridor links the high-growth internet markets of Southeast and South Asia with the large incumbent networks of the Middle East and Western Europe, meaning the system serves both consumer broadband and enterprise traffic across a diverse set of national markets.

Ownership and Build

Ownership rests with a consortium structure — the standard model for cables of this scale and geographic reach, where multiple carriers and operators share capital expenditure and capacity rights. Specific membership details and build contractor information are not documented in the available record.

Regional Context

SEA-ME-WE 5 sits within a broader family of same-named systems stretching back to the 1990s, each successive cable adding capacity as the previous generation saturated. Together, these systems form a layered backbone across a route where cable cuts and congestion carry immediate consequences for connectivity across multiple continents.