SEAMEWE 3
UPDATE: This cable was retired on December 2, 2024, after more than 25 years of service
The South-East Asia – Middle East – Western Europe 3 (SEA-ME-WE 3 or SMW3) submarine cable is the longest in the world, spanning 39,000 km and linking 39 cable landing stations across 33 countries and 4 continents, including Asia, Australia, Africa, and Europe. Officially launched in 1999, SMW3 continues to be a critical artery for global communications.
The SMW3 cable system, supplied by Alcatel Submarine Networks (ASN) and Fujitsu, initially featured state-of-the-art 8xSTM-16 DWDM technology, which was groundbreaking when it was designed in 1996. The system has undergone multiple upgrades, with its capacity significantly expanded through advanced 10G and 100G DWDM technologies, ensuring it remains at the forefront of global connectivity.
Network Map

System Details

Request For Service (RFS)

Number of Fibre Pairs

Initial system design capacity

Current Capacity
Expanded through multiple upgrades to support 100G DWDM technology

Cable Length

Wavelength technology

Owners
Landing Points





































