Lumut, Malaysia: no other cable lands within 50 km.
Pantai Teluk Baharu, Malaysia: no other cable lands within 50 km.
On an island this means losing the submarine link; on the mainland traffic can still go over land.
No alerts from our monitoring on this cable in the last 180 days. Events feed →
Counted: other international cables landing in the same country (domestic cables between points of one country are not a way out), other cables at landing points within 50 km, and whether the country has land links. Not counted: cable capacity, operator contracts and satellite. Use as a first look at dependence, not as a statement of what would happen.
Live Performance
12
measurements
4
probes
45
days monitored
279.6
ms avg RTT
0
anomalies
Monitored from 2026-09-03 through 2026-10-19 - live ICMP round-trip time measurements via our monitoring probes. All values below are recomputed daily from raw probe data. ✓ No anomalies detected in the monitored period.
Measurement sources
Probe
Location
Samples
Avg
Min-Max
Last seen
#6410 own probe
Sao Paulo BR
4
392.5 ms
359.8-456.8
2026-10-19
own probe
Almaty KZ
4
285.4 ms
247.8-368.0
2026-10-19
#6427 own probe
Sydney AU
3
211.4 ms
100.4-287.5
2026-09-18
#6568 own probe
Singapore SG
1
9.7 ms
9.7-9.7
2026-10-19
About the Lumut-Pangkor Island Cable System
Lumut-Pangkor Island: A Short Submarine Cable Connecting Malaysia's Coast
The Lumut-Pangkor Island submarine cable is a 4-kilometer fiber optic link connecting Lumut on the Malaysian mainland to Pantai Teluk Baharu on Pangkor Island. Owned by Telekom Malaysia, it is listed as in service and was recorded as ready for service in 2018 according to GeoCables data. This cable is notable for its short length, serving as a critical infrastructure piece for telecommunications between the mainland and the island.
What makes this cable interesting is its simplicity and the lack of publicly disclosed technical details. Unlike larger regional or transoceanic submarine cables, which often involve complex engineering and high-capacity systems, the Lumut-Pangkor Island cable is a compact installation. Its primary function is likely to provide reliable connectivity to Pangkor Island, a popular tourist destination and residential area. However, public information about its design capacity, fiber count, and supplier is absent, leaving room for speculation about its technical specifications.
The Lumut-Pangkor Island cable connects two landing points: Lumut, a coastal town in the state of Perak on the Malaysian mainland, and Pantai Teluk Baharu, a beach area on Pangkor Island. The short distance of 4 kilometers makes this one of the shortest submarine cables in operation globally. Pangkor Island is known for its tourism and fishing industries, and the cable likely plays a role in supporting local businesses, residents, and visitors with modern telecommunications services.
Why it was built and what it carries
The primary purpose of the Lumut-Pangkor Island cable is to provide reliable connectivity to Pangkor Island. As an island with a growing population and tourism sector, Pangkor requires stable internet and telecommunications infrastructure to support its economic activities and public services. This cable ensures that the island is connected to the mainland network operated by Telekom Malaysia, enabling residents and businesses to access high-speed internet and other telecom services.
Given its short length, the cable is unlikely to be designed for high-capacity international traffic but rather for localized service. Specific data about what it carries, such as bandwidth or traffic volume, is not publicly disclosed.
History: what can be established
GeoCables records the Lumut-Pangkor Island cable as ready for service in 2018. No conflicting dates have surfaced in industry sources, so this year appears to be accurate. The cable's construction aligns with Telekom Malaysia's ongoing efforts to expand connectivity to remote and underserved areas within the country. Publicly available information about its installation process, costs, or challenges is scarce.
Capacity and technology
No details about the design capacity, fiber pairs, or technology used in the Lumut-Pangkor Island cable have been disclosed publicly. Without operator documentation, attributing specific values to these parameters would be speculative. Given its short length and localized purpose, it is reasonable to assume that the cable is designed to meet the modest bandwidth requirements of Pangkor Island rather than serve as a high-capacity link.
Latency: the physics
The theoretical one-way light propagation time over the 4-kilometer wet segment is approximately 0.0 milliseconds, with a round-trip time (RTT) floor also calculated at 0.0 milliseconds. These values reflect the speed of light in fiber, which ranges from 200,000 to 204,000 kilometers per second. However, real-world latency will be higher due to additional factors such as the land-based network tails, terminal equipment, and routing inefficiencies. No live measurements for this cable are currently available.
Redundancy: what happens if it breaks
If the Lumut-Pangkor Island cable were to experience a fault, redundancy would depend on alternative connectivity solutions for Pangkor Island. These could include microwave links, satellite communications, or other terrestrial systems operated by Telekom Malaysia. Repairs for a cable of this length are typically straightforward compared to longer submarine systems, as the short distance makes it easier to locate and fix faults. Standard industry practices involve deploying specialized vessels and equipment to retrieve and repair the damaged section.
Bottom line
The Lumut-Pangkor Island cable is a 4-kilometer submarine link connecting Lumut and Pantai Teluk Baharu in Malaysia.
Owned by Telekom Malaysia, it was recorded as ready for service in 2018 and is currently listed as in service.
Publicly disclosed information about its design capacity, fiber pairs, supplier, and technology is unavailable.
Theoretical latency over the wet segment is negligible, but real-world latency is influenced by additional network factors.
Redundancy for Pangkor Island likely relies on alternative systems like microwave or satellite links.