Globe Telecom’s Fiber Optic Backbone Network comprises three parts, i.e. Globe's FOBN and FOBN-2 and Telecphil's National Digital Transmission Network (NDTN), connecting the entire Philippines with more than 12,000 kilometers of submarine and land cables. 

FOBN

In early 2002, Globe Telecom and Fujitsu signed an $80-million contract covering the supply of transmission systems and submarine fiber optic cable system for Globe’s Fiber Optic Backbone Network (FOBN1) project, including the installation of land fiber optic cable, new buildings for equipment, DC power plant, generator sets, and other support facilities needed for the project, on a turnkey basis. This FOBN project connects Globe Telecom’s existing telecom network in Makati, stretching to Nasugbu in Batangas, connecting Mindoro, the islands of Panay and Negros, Cebu province, and Iligan City in Mindanao, with a total cable length length of 1,600 kilometers (combination of submarine and land cables).

FOBN2

In November 2009, Globe Telecom completed the FOBN2, which spanning over 1,900 kilometers of inland and submarine cable, covering most areas of Luzon, Visayas, and Mindanao. The FOBN2 project cost was around $70 million. FOBN2 serves as protection route for FOBN1.

In Septermber 2013,  Globe Telecom completed rollout of a 400km submarine fibre optic backbone connecting Palawan with the main island of Luzon, strengthening Palawan’s connectivity with the entire country and the rest of the world.

NDTN

National Digital Transmission Network (NDTN) was first launched in 1999 and built at an original cost of $70 million.

NDTN was owned the Telecoms Infrastructure Corp. of the Phils. (Telecphil), a seven-member joint venture consortium composed of BayanTel (57% as majority owner), Digitel, Eastern Telecoms (ETPI), Extelcom, Globe, Philippine Telegraph and Telephone Corp. and Smart. Telecphil was the second largest backbone network operator in the Philippines, following PLDT.

Globe Telecom acquired BayanTel in 2013 and 50% of ETPI in 2016, being the majority owner of Telecphil and its National Digital Transmission Network (NDTN). The NDTN backbone has a total length of 2,741 km.