Every landing point of this cable has another cable within 50 km.
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
177
measurements
7
probes
226
days monitored
55.4
ms avg RTT
0
anomalies
Monitored from 2026-03-06 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
#329
control probe
108
26.1 ms
1.5-407.8
2026-10-19
#65653
control probe
34
9.4 ms
8.2-13.7
2026-04-12
#6410 own probe
Sao Paulo BR
9
295.5 ms
284.5-328.6
2026-09-15
#6427 own probe
Sydney AU
9
203.3 ms
71.1-233.8
2026-09-15
#6487
control probe
8
108.6 ms
104.1-117.4
2026-06-23
#6923
control probe
8
110.0 ms
109.9-110.1
2026-06-26
own probe
Almaty KZ
1
434.2 ms
434.2-434.2
2026-09-15
About the Atisa Cable System
Atisa: connecting Guam and the Northern Mariana Islands
The Atisa submarine cable system is a regional telecommunications cable owned by Docomo Pacific, linking Guam with multiple landing points in the Northern Mariana Islands. With a total length of 279 kilometers, it enables connectivity between Piti (Guam), San Jose, Sasanlagu, and Sugar Dock (all in the Northern Mariana Islands). The cable has been recorded as ready for service (RFS) in 2017 according to GeoCables data, though corroborating industry sources are not readily available.
What makes Atisa notable is its role in providing critical connectivity for the Northern Mariana Islands, a U.S. territory with limited options for international bandwidth. However, key technical specifications such as design capacity, fiber pair count, supplier, and technology remain undisclosed, leaving room for speculation about its operational characteristics.
Quick facts
Name
Atisa
Length
279 km
Ready for Service (RFS)
2017 (GeoCables database)
Owner
Docomo Pacific
Status
In service
Design Capacity
Not disclosed
Fiber Pairs
Not disclosed
Supplier
Not disclosed
Technology
Not disclosed
Landing Points
Piti (Guam); San Jose (Northern Mariana Islands); Sasanlagu (Northern Mariana Islands); Sugar Dock (Northern Mariana Islands)
Atisa was constructed to enhance connectivity between Guam and the Northern Mariana Islands, addressing the growing demand for reliable telecommunications infrastructure in the region. As a U.S. territory, the Northern Mariana Islands rely heavily on submarine cables for internet and data services, given their geographic isolation and lack of terrestrial alternatives. The cable likely carries a mix of internet traffic, private data, and potentially government communications, although specific details about its traffic composition are not publicly disclosed.
History: what can be established
GeoCables data records Atisa as ready for service in 2017, and it is currently listed as operational. No alternative dates have been identified in publicly available industry sources, suggesting that the 2017 RFS date is accurate. However, without detailed operator documentation, it is challenging to confirm the exact timeline of its construction and commissioning.
Capacity and technology
Public sources do not disclose Atisa's design capacity, fiber pair count, or the technology employed in its construction. While modern submarine cables typically utilize dense wavelength division multiplexing (DWDM) technology to maximize data transmission capacity, attributing this to Atisa without documentation would be speculative. Similarly, the number of fiber pairs, which determines the cable's potential throughput, remains unknown.
Latency: the physics
The theoretical one-way light propagation time over Atisa's 279-kilometer wet segment is approximately 1.4 milliseconds, with a round-trip time (RTT) floor of 2.7 milliseconds. Real-world latency measurements are generally higher due to additional factors such as land tails, terminal equipment, and routing inefficiencies.
GeoCables live measurements show significant variability in latency. For example, the average RTT between Piti and Sugar Dock is 32.9 milliseconds, far exceeding the theoretical floor. Notably, a minimum latency of 1.3 milliseconds was recorded for this path, but this value is below the physical floor and should be treated as a measurement artifact caused by rate-limited ICMP replies from intermediate routers. A careful analyst would disregard such artifacts when assessing cable performance.
Redundancy: what happens if it breaks
If Atisa were to experience a fault, redundancy would depend on alternative cables landing at Piti, Guam. These include Bulikula, Echo, HANTRU1 Cable System, Japan-Guam-Australia North (JGA-N), Japan-Guam-Australia South (JGA-S), PIPE Pacific Cable-1 (PPC-1), SEA-US, and Tata TGN-Pacific. However, redundancy for the Northern Mariana Islands is more limited, as Atisa is one of the few cables directly serving this territory. Repair operations would likely involve specialized cable-laying vessels and could take weeks, depending on the nature and location of the fault.
Bottom line
Atisa is a 279-kilometer submarine cable connecting Guam to the Northern Mariana Islands.
Owned by Docomo Pacific and recorded as ready for service in 2017.
Key technical details such as design capacity and fiber pair count are not publicly disclosed.
Theoretical latency floor is 2.7 milliseconds RTT over the wet segment; real-world measurements are higher.
Redundancy for Guam is strong, but options for the Northern Mariana Islands are limited.