Guam Marianas is an IT&E operated cable providing capacity to the Northern Marianas. Originally called the MTC Interisland Cable, it was completed in 1997 by the Micronesian Telecommunications Corporation and originally operated at 622 Mbps. For a time it was owned by Verizon. It was upgraded in 2014 with Ciena equipment to support 10 Gbps of traffic. Redundancy provided by a chain of microwave links operating around 1 Gbps. Outages were the motivation for Docomo Pacific building the ATISA cable.

Lands at:

• Tanguisson, Guam
• Rota, CNMI
• Tinian, CNMI
• Saipan, CNMI

Additional Resources:

• https://web.archive.org/web/20190529074242/https://placesmap.net/MP/It-e-Cnmi-694065324020743/
• https://web.archive.org/web/20190529074444/https://www.saipantribune.com/index.php/9fe12116-1dfb-11e4-aedf-250bc8c9958e/
• https://web.archive.org/web/20190529074434/https://www.saipantribune.com/index.php/a0a73ccd-1dfb-11e4-aedf-250bc8c9958e/