Facebook's subsea cable called 2Africa will be the longest subsea cable after it's extended to over 45,000kms with the addition of nine new landings collectively dubbed the 2Africa Pearls. The current longest cable is the  SEA-MEH-WE 3, which stretches up to 39000 kms. The 2Africa Pearls new branches will be in the countries of Bahrain, India, Iraq, Kuwait, Oman, Pakistan, Qatar, Saudi Arabia, and the UAE, connecting over 1.8B more people.