Six installments mapped the internet as cables, cuts, buildings, megawatts, caches, and sky. This one asks who holds the deed. Every cable, every carrier hotel, every dark duct has an owner, and the owner list has changed twice in the physical internet's 150 years — from an empire, to a club of carriers, to the content companies whose names are on every screen anyway.[1][2][3]
The telegraph internet was a British map.[1] In 1892 British companies owned and operated two-thirds of the world's cables, and by 1923 their share was still 42.7 percent.[1] The physical plant followed the flag: in 1896 there were 30 cable-laying ships in the world, 24 of them owned by British companies.[1] The first internet was not a network of open participants — it was a fleet and a ledger, and both were British.
Fiber changed the ownership shape but not the instinct. Almost all fiber-optic cables from TAT-8 in 1988 until approximately 1997 were constructed by consortia of operators; TAT-8 alone counted 35 participants.[1] The club model then broke open: a massive, speculative rush to construct privately financed cables peaked in more than $22 billion worth of investment between 1999 and 2001, followed by the bankruptcy and reorganization of operators such as Global Crossing, 360networks, FLAG, Worldcom, and Asia Global Crossing.[1] The boom built the map; the bust decided who kept it. Of the era's survivors, one stands out — Tata Communications' Global Network (TGN) is the only wholly owned fiber network circling the planet.[1]
The modern break is that the people who need the capacity stopped renting it.[2] MAREA, the transatlantic system landing at Virginia Beach and Bilbao, is owned and funded by Microsoft and Facebook, and constructed and operated by Telxius, a subsidiary of the Spanish telecom company Telefónica.[2] As of 2019 it was the "highest-capacity submarine cable in the world" with a system design capacity of 200 terabits per second.[2] The ownership is itemized like a ledger: Telxius announced that AWS had signed an IRU agreement to use one of MAREA's eight fiber pairs, while Microsoft and Facebook each own two pairs and Telxius keeps three for other customers and its own use.[2] One impetus for the project was the service disruptions caused by Hurricane Sandy in October 2012.[2] The cable was the tenant's answer to a storm the carriers could not route around.
Google built the same answer for the South Atlantic. In June 2019 Google announced it was investing in another private international subsea cable — Equiano — its third private subsea cable after Curie (completed in 2019) and Dunant (completed in 2020).[3] The Equiano cable consists of 12 fibre pairs (24 fibres) of 12 Tbit/s each (144 Tbit/s total).[3] It is part of Google's five-year, $1 billion plan to boost digital services across Africa,[3] and it gave the island of Saint Helena its first undersea cable — the first shore landing was there in 2021, making it the first undersea cable to connect the island to the Internet, which previously only used satellite links.[3] A content provider built the island's first deed to the sea floor.
Ownership was never fully privatized.[1] In China, three state-owned companies — China Mobile, China Telecom, and China Unicom — invested in undersea cables.[1] On the other side of the ranking, the U.S. Navy owns over 40,000 nautical miles of various subsea cables.[1] The map's two largest single owners, by square footage of seabed, are a carrier trio and a navy.
The map's smallest plots are its most valuable. A carrier hotel is a data centre that exists to connect networks to each other: the term can refer to a data centre focused on connecting customer and carrier networks together.[4] Colocation facilities host meet-me rooms, internet exchange points, and the landing points and terminal equipment for fibre optic submarine communication cables.[4] The ocean ends inside a room with a locked cage.
The archetype is a 1928 Art Deco telegraph palace. 60 Hudson Street, built as Western Union's headquarters, was described as the world's largest telegraph building upon its opening,[5] and since the late 20th century has housed a colocation center, making it one of the most important Internet hubs in the world.[5] A century of internet traffic has flowed through the same lobby.
Across Manhattan, the landlord became a tenant's asset.[6] 111 Eighth Avenue, built in 1932 as a Port Authority freight terminal, has 2.9 million square feet of floor space — more than the Empire State Building.[6] In 2010, the building was purchased for $1.8 billion by Google, who became its largest tenant.[6] The same companies that lay cables also buy the buildings the cables land in.
The colocation industry itself learned to price itself like real estate. Equinix specialized in internet connectivity and data center colocation centers, commonly known as carrier hotels, until the company converted to a real estate investment trust (REIT) in January 2015.[7] As of 2025, the company operates 260 data centers in 33 countries, across five continents and employed more than 13,000 people.[7] The internet's rooms are now literally traded as property.
The cheapest deed is the one already dug. Dark fibre — unused optical fibre available for lease — exists because a great excess of fibre was installed in the US during the telecom boom of the late 1990s and early 2000s.[8] The boom left the glass unlit; the leases made it a market.[8] The reason the excess happened is the actual economics: in Amsterdam's citywide installation of a fibre network, roughly 80% of the costs involved were labour, with only 10% being fibre.[8] Once a trench is dug, extra strands are nearly free — so the physical internet's true cost is not the cable, but the permission to dig, the rights of way, the deed itself.[8]
The ownership list is the series' shortest map. Empires built the first cables to keep an empire coherent; carriers built a club that accidentally built a globe; content companies built the last systems because the club could not move fast enough for them. Each transfer moved the deed closer to the person whose traffic is on the line.
The tension I keep circling is neutrality. A meet-me room owned by its largest tenant is a room with a very informed landlord. MAREA and Equiano are private systems built by the people who needed them, and the economics are unbeatable — but the internet's openness has always lived in the spaces no single owner controls. The deed is the bottleneck that physics never was.
And the state never left. When the map is drawn in deeds, the largest single units belong to a trio of Chinese carriers and a navy — which is a reminder that the physical internet was always also a strategic one, whatever the 1990s hoped.
[1] Submarine communications cable — Wikipedia
[2] MAREA — Wikipedia
[3] Equiano (submarine communications cable) — Wikipedia
[4] Colocation centre — Wikipedia
[5] 60 Hudson Street — Wikipedia
[6] 111 Eighth Avenue — Wikipedia
[7] Equinix — Wikipedia
[8] Dark fibre — Wikipedia
all eight fetched live 2026-08-26; verbatim evidence quotes kept in the citation ledger.