Thanlyin, Myanmar: 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
254
measurements
8
probes
227
days monitored
89.4
ms avg RTT
0
anomalies
Monitored from 2026-03-06 through 2026-10-20 - 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
#62122
control probe
79
51.5 ms
35.8-155.2
2026-10-20
#1033
control probe
72
50.3 ms
27.0-105.9
2026-10-01
#61198
control probe
69
106.8 ms
57.9-250.3
2026-07-09
#6410 own probe
Sao Paulo BR
11
357.0 ms
315.4-389.8
2026-09-18
own probe
Almaty KZ
11
277.4 ms
259.5-359.6
2026-09-18
#6487
control probe
10
29.3 ms
0.8-58.1
2026-08-03
#6427 own probe
Sydney AU
1
315.5 ms
315.5-315.5
2026-09-18
#6477
control probe
1
58.0 ms
58.0-58.0
2026-08-20
About the UMO Cable System
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.
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.