44 submarine cable systems entered service since 2020, adding over 200,000 km of verified new fibre under the sea

Asked:

“Map every submarine internet cable that entered service since 2020: name, landing points, length, owners, and capacity.”

This inventory covers 44 cable systems with a verified ready-for-service date between January 2020 and the research cutoff of 1 September 2026, deduplicated from 345 source pages. Lengths are in kilometres and capacity is design capacity in Tbps; a blank means no verified figure was found. Colour marks the RFS year.

RFS year

Lines connect stated landing points along schematic great-circle paths — they do not depict the seabed route. 31 of the 44 systems had named landing points that could be placed; the rest appear in the table only.

2021 was the busiest year, with nine systems entering service, from Google's 250 Tbps Dunant across the Atlantic to the 170 km Skagen Fiber West between Norway and Denmark. submarinenetworks.com

The largest single system is 2Africa — 45,000 km reaching 46 landing stations in 33 countries — whose core infrastructure was activated in November 2025. submarinenetworks.com

Hyperscalers dominate the big trunks: Google (Dunant), Meta and Microsoft (Amitié), and Amazon, Facebook and SoftBank (JUPITER) all co-own new transoceanic systems in the period. submarinenetworks.com

The scale runs from the 15 km Coral Bridge across the Gulf of Aqaba (RFS August 2025) to JUPITER's 14,600 km trans-Pacific trunk — a thousand-fold span in a single five-year cohort. submarinenetworks.com

Inventory of the 44 qualifying systems

Filter:

Cable	RFS	Length (km)	Owners	Design capacity (Tbps)	Landing points	Source

Method: 44 submarine cable systems with a verified actual ready-for-service / entered-commercial-service date from 2020-01-01 through the research cutoff 2026-09-01, deduplicated by system name from 345 source pages (mainly submarinenetworks.com, cross-checked against TeleGeography's cable index and API records). Systems described only as planned, expected or under construction were excluded, as were upgrades or new segments of pre-2020 systems. Length is stated system length in km; capacity is design capacity in Tbps — blanks mean no verified figure was found, not zero. Landing-point connections on the map are schematic great-circle lines between stated landing points, not seabed routes; 13 systems lacked placeable landing points and are listed in the table only.

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