Lingao, China

Lingao, China: Submarine Cable Landing Point

Lingao is a coastal location in Hainan province, China, where one submarine cable makes landfall. Hainan is an island province, and Lingao County sits along its northern coastline, giving it a position relevant to cable connections within and around the island. The single cable landing here, the Haikou-Beihai Cable, connects Lingao to other points on the Chinese mainland, forming part of the intra-national coastal submarine cable infrastructure that links Hainan to the rest of China.

With one submarine cable, Lingao represents a more modest presence in China's overall submarine cable network compared to several busier landing points elsewhere in the country. Nevertheless, its role in supporting connectivity between Hainan Island and the Chinese mainland via undersea infrastructure is a distinct and documented function within the national cable map.

Cables Landing at Lingao

The Haikou-Beihai Cable is the sole submarine cable landing at Lingao. Spanning 198 km, this cable reached ready-for-service (RFS) status in 1999 and is currently recorded in draft status. Both endpoints of this cable are located within China, making it a domestic submarine cable rather than an international one. The Haikou-Beihai Cable connects locations along the coastal corridor linking Hainan Island to the Guangxi region on the Chinese mainland, specifically referencing the city of Beihai. At 198 km, it is a relatively short cable by the standards of China's broader submarine cable network, where the average cable length reaches approximately 10,860 km.

Regional Context

Within China's submarine cable network, which encompasses 24 landing points, Lingao hosts one cable and ranks in the top 63% of Chinese landing points by cable count. Major Chinese landing points such as Chung Hom Kok and Tseung Kwan O each host six cables, while Chongming and Nanhui each host four, and Shantou hosts three. Lingao, along with a number of other single- or dual-cable points across China, forms part of the broader distributed network that extends submarine cable access beyond the country's primary hub locations.

Network Role

Lingao functions as a single-cable terminus in the submarine cable network, serving the specific corridor between Hainan Island and the Chinese mainland via the Haikou-Beihai Cable. This domestic cable provides a direct undersea link covering the short maritime distance between the island province and the Beihai coastal area, supplementing other forms of connectivity across the Qiongzhou Strait region. The cable's 1999 RFS date places it among the earlier entries in China's submarine cable history, which began in 1997.

As a terminus for a single domestic cable, Lingao does not function as a multi-cable hub, but its position on Hainan Island's coastline gives it a defined role in ensuring that the island's connectivity infrastructure includes an undersea component linking it directly to the mainland. In the broader map of China's 24 submarine cable landing points, Lingao represents the category of specialized, lower-volume landing points that collectively extend the reach of the national submarine cable network to island and coastal communities.