Ukraine's Cable Infrastructure: Connectivity, Risks, and Conflict Impact

Geography and Connectivity: Ukraine's Cable Infrastructure

Ukraine is connected to the global internet network through three submarine cables: Kardesa, Kerch Strait Cable, and Energy Bridge Cable. Their combined length totals 1,444 km, positioning the country with a relatively modest submarine cable footprint. Ukraine's isolation index of 60 out of 100 underscores its limited data transmission routes, which could theoretically heighten the risk of connectivity disruptions during external or internal events. The cable landing points are located in Odesa, Kerch, and Osovyny, highlighting the strategic importance of the Black Sea region for the nation's internet traffic.

The longest cable, Kardesa (1,385 km), is planned to become operational in 2027. The shorter Kerch Strait Cable (46 km) and Energy Bridge Cable (13 km) are already functional, but their limited length and geographic positioning make them less impactful for international transit.

Regulation and Censorship: State Control Over Traffic

GeoCables data indicates that the level of DNS censorship in Ukraine remains clean, with 0% of checks showing blocking or poisoning of requests. This suggests that the state does not interfere with internet infrastructure at the DNS level. However, known measures to regulate the information space, such as restrictions on access to certain Russian resources, suggest that censorship is primarily implemented through content filtering rather than direct manipulation of network infrastructure.

It is important to note that GeoCables does not measure censorship levels directly: this assessment is based solely on the absence of registered interference with DNS requests.

Conflict and Its Impact on Connectivity

Ukraine's location in an active conflict zone inevitably influences its internet infrastructure. GeoCables identifies 11 regions classified as conflict zones, including Odesa, Mykolaiv, Dnipro, and Kharkiv. The current maximum alert level is 0.020, reflecting active but not critical conflict-related impacts on network connectivity.

Over the past 60 days, GeoCables tracked events potentially linked to escalation, such as strikes on oil facilities, fuel shortages, and reports of air defense system deficiencies. These developments underscore the vulnerability of infrastructure, particularly in regions intersected by cable routes.

Chokepoints and Connectivity Risks

Ukraine's limited number of submarine cables and landing points represents a critical vulnerability. For instance, damage to or blockage of the Kerch Strait Cable or Energy Bridge Cable could lead to significant connectivity disruptions, especially given their proximity to conflict zones.

Additionally, while Ukraine borders several countries that act as transit hubs for internet traffic, instability in the Black Sea region and the limited number of western border routes amplify the risks of partial or complete isolation in the event of critical line failures.

GeoCables Monitoring: Proactive Observation

GeoCables continuously monitors the status of Ukraine's key submarine cables, including Kardesa, Kerch Strait Cable, and Energy Bridge Cable. Conflict zones associated with these cable routes are under active observation, enabling the detection of potential threats or disruptions in real time. The monitoring system also evaluates geopolitical events, such as strikes on infrastructure facilities, that could impact the country's internet connectivity.

While Ukraine remains in a high-risk zone, the development of new cable routes, such as Kardesa, presents an opportunity to enhance its connectivity and reduce reliance on existing routes.