Maruyama Cable Landing Station (Maruyama CLS) is located at 2698-19 Shirako, Minamiboso-shi, Chiba Prefecture, Japan. The Maruyama CLS is owned and operated by Softbank.

The Maruyama Cable Landing Station is one of the most popular sites for subsea cables landing in Japan, housing 8 subsea cables including 

  • ASE (Asia Submarine-cable Express)
  • APG ( Asia Pacific Gateway)
  • TPE (Trans-Pacific Express)

The Maruyama CLS is a carrier neutral cable landing station, with open colocations for other carriers. It is also quite close to Chikura, Wada and Emi cable landing stations.

The Maruyama CLS is in fact a cable landing campus with 4 buildings.

Building A is dedicated for domestic terrestrial systems of Softbank.

Building B houses the Japan-US CN. It serves as carrier neutral colocation as well.

Building C houses AJC, NCPTPEASE and APG submarine cable systems. NTT gets colocation facilities in the Building C and rebands it as Shin-Maruyama Cable Landing Station, where houses TPEASE and APG. Softbank BBIX sets a IX point "BBIX Tokyo 6" at the Building C of Maruyama Cable Landing Station.

Building D is a new building completed in the end of 2020, with 3 floors, each with colocation space of 500 ㎡ (5400 sq ft), housing Jupiter and ADC cable systems. Softbank is the landing party in Japan for Jupiter and ADC. Softbank and NTT both have their Jupiter cable system terminated at the Marayama CLS. NTT will extend its Jupiter capacity to it new Minamiboso Cable Landing Station.

There are diverse cable routes connecting Maruyama CLS and Tokyo metro area. Notably, the Aqua Route running through Tokyo-Bay by undersea tunnel “Tokyo-Wan Aqua Line” delivers the shortest latency between Maruyama CLS and Tokyo.  



Station Name:

  • Maruyama Cable Landing Station, or Maruyama CLS


Station Owner:

  • Softbank


Available Backhaul Providers:

  • Softbank, NTT


Cable Systems:

  • ASE (Asia Submarine-cable Express)
  • APG ( Asia Pacific Gateway)
  • TPE (Trans-Pacific Express)