PC-1 submarine cable system is owned and operated wholy by Pacific Crossing, an NTT Communications Corporation company. This trans-pacific submarine cable system PC-1 netowrk consists of 4 optical fiber pairs, uses the state-of-the-art technology for optical transmission and submarine cable system, forms protected network rings, connecting the U.S. and Japan. The 21,000km PC-1 submarine cable system offers the highest reliability and the lowest latency across the Pacific. Supported by extensive backhaul into major U.S. and Japanese cities, Pacific Crossing’s infrastructure offers seamless interconnection to virtually every major international network operator for onward global access. With PC-1 network, Pacific Crossing delivers state-of-the-art capacity and managed network services at competitive prices to a growing customer base of carriers and media and information transport-intensive enterprise customers. PC-1 offers protected trans-pacific capacity up to 10Gbps (SDH and wavelength), as well as Ethernet services up to 10G LAN PHY and 10G WAN PHY. In July 2013, the PC-1 network was upgraded with 100G coherent technology, offering 100GE connections from Japan to the USA.