UMO: Myanmar-Singapore submarine cable
The UMO submarine cable, owned by Campana Group, connects
Thanlyin in Myanmar to
Tuas in Singapore over a distance of 2227 km. It is listed as in service, with a recorded ready-for-service (RFS) year of 2023 according to the GeoCables database. This cable enhances Myanmar's connectivity to Singapore, a major regional hub for internet traffic and data centers.
Despite its operational status, several technical details about UMO remain undisclosed in public sources, including its design capacity, fiber pair count, supplier, and specific technology employed. These gaps in information make it challenging to fully assess its capabilities or compare it directly to other cables in the region.
Quick facts
| Cable name | UMO |
| Length | 2227 km |
| Ready-for-service year | 2023 (GeoCables database) |
| Owner | Campana Group |
| Status | In service |
| Design capacity | Not disclosed |
| Fiber pairs | Not disclosed |
| Supplier | Not disclosed |
| Technology | Not disclosed |
| Landing points | Thanlyin (Myanmar), Tuas (Singapore) |
Route
The UMO cable spans 2227 km between Thanlyin, Myanmar, and Tuas, Singapore. Thanlyin serves as a gateway for Myanmar's international connectivity, while Tuas is a well-established landing site in Singapore, hosting numerous other submarine cables. The route traverses the Andaman Sea and the Strait of Malacca, which are common corridors for regional submarine cables due to their strategic location and proximity to dense population centers.
Why it was built and what it carries
UMO was likely built to address Myanmar's growing demand for international bandwidth and reliable connectivity to global internet hubs. Singapore, as a major data center and interconnection hub in Southeast Asia, provides access to a wide range of international networks. By linking Myanmar directly to Singapore, UMO reduces reliance on terrestrial routes or indirect submarine paths that may introduce higher latency or complexity.
The cable's role in Myanmar's connectivity ecosystem is significant, but without publicly disclosed design capacity or fiber pair information, its exact contribution to the country's bandwidth capacity remains unclear.
History: what can be established
The GeoCables database lists UMO's ready-for-service year as 2023, and it is currently marked as in service. Publicly available industry sources do not provide conflicting dates, but the absence of detailed announcements or operator documentation makes it difficult to confirm the timeline with certainty. Possible reasons for discrepancies in RFS dates in similar cases include delays in construction, regulatory approvals, or updates to database records.
Capacity and technology
The design capacity, fiber pair count, supplier, and technology of the UMO cable are not disclosed in public sources. Without operator documentation, attributing these specifications would be speculative. The cable's ability to support Myanmar's growing data demands depends on these parameters, which remain unknown to external analysts.
Latency: the physics
The theoretical one-way light propagation time for UMO's 2227 km length is approximately 10.9 ms, with a round-trip time (RTT) floor of 21.8 ms. These calculations assume light traveling through fiber at speeds between 200,000 and 204,000 km/s. Real-world latency measurements, however, are influenced by additional factors such as terrestrial network segments, routing decisions, and equipment processing delays.
Live measurements from remote probes show significantly higher RTTs. For instance, the average RTT between Thanlyin and Tuas is 96.8 ms, far exceeding the theoretical floor due to the inclusion of land tails and intermediate network hops. Similarly, the reported minimum RTT of 0.9 ms between Singapore and Tuas is flagged as a measurement artifact, likely caused by rate-limited ICMP replies from an intermediate router. This value is below the physical floor and should not be interpreted as the cable's performance.
Redundancy: what happens if it breaks
Tuas is a major landing site with numerous alternative cables, including
Apricot,
Asia Direct Cable (ADC),
Bifrost,
i2i Cable Network (i2icn), and others. These cables provide redundancy for Singapore's connectivity. However, Myanmar's international connectivity is more limited, and disruptions to UMO could have a significant impact, depending on the availability and capacity of alternative routes. Repairing submarine cables typically involves deploying specialized cable ships to locate and fix faults, a process that can take days to weeks depending on the location and severity of the issue.
Bottom line
- UMO is a submarine cable connecting Myanmar (Thanlyin) to Singapore (Tuas) over 2227 km.
- Owned by Campana Group, it is listed as in service with a recorded RFS year of 2023.
- Key technical details, including design capacity, fiber pairs, supplier, and technology, are not publicly disclosed.
- Theoretical RTT floor is 21.8 ms, but real-world measurements show higher latency due to network factors.
- Redundancy is strong at Tuas but limited for Myanmar, making UMO important for the country's connectivity.