The Pacific Crossing (PC-1) cable system is a private transpacific subsea cable owned and operated wholly by PC Landing Corp. (PC Landing), an indirect subsidiary of NTT Corporation.

PC-1 is 13,076 miles (21,000 km) long and is comprised of four segments in a ring configuration connecting cable landing stations located in

• Grover Beach, California;
• Harbour Point (City of Mukilteo), Washington;
• Shima, Japan; and
• Ajigaura, Japan.

The PC-1 cable system forms a self-healing ring architecture, consists of four fiber pairs in each of its four segments:

• Segment PC-1 N connects the cable stations at Harbour Pointe, Washington and Ajigaura, Japan;
• Segment PC-1 W connects the cable stations at Ajigaura, Japan and Shima, Japan;
• Segment PC-1 S connects the cable stations at Shima, Japan and Grover Beach, California; and
• Segment PC-1 E connects the cable stations at Grover Beach, California and Harbour Pointe, Washington

The PC-1 cable system was originally designed with 64*10 Gbps DWDM technology and ready for service in January 2001, upgraded to 100 Gbps DWDM technology for a system capacity of 8.4 Tbps in 2013.

PC-1's original FCC cable landing license was expired on December 28, 2024. Upon PC Landing's application, the FCC has granted a new 10-year license term for the PC-1 cable system, to be expired on May 20, 2035.