Meta's petabit cable makes the bandwidth buyer the Atlantic's landlord

Meta orders the biggest capacity jump in cable history

Meta announced Petal↗ on Monday, 21 September 2026: about 7,000 km of cable between the United States and France, designed for 1 petabit per second, in service in 2029 ¹. Meta calls it the largest generational capacity increase of any transoceanic cable system, ever ¹. Meta funds and operates the system, NEC handles design and construction, Sumitomo Electric supplies the two-core fiber, and Orange supports the French landing ¹². No announcement puts a price on the build ¹².

Twice the data, the same steel

One petabit is 1,000 terabits per second, twice the maximum capacity of any subsea cable operating today ³. Petal gets there with two light paths, or cores, inside each fiber: 48 core-pairs, against the 24 fiber-pairs of Anjana, Meta's own transatlantic cable at roughly half a petabit ²⁴⁸. The cost logic is the story. Thicker cable means more steel and copper, and heavier cable may need more lay vessels in an industry already short of ships, NEC's Takahiro Kashima said at the company's Tokyo news conference on 24 September↗ ³.

Three firms, the whole ocean

NEC, SubCom and Alcatel Submarine Networks control more than 90% of the global subsea market, and the cables they build carry 99% of international internet traffic by the ITU's count ³. NEC holds 25% and wants 35% by 2030; Petal is its third Atlantic job in a corridor the other two have traditionally owned ³. The demand pulling capacity is AI: transoceanic data traffic is expected to surge with AI's rapid growth, and hyperscalers increasingly finance and build the networks that link their overseas data centers, a role telecoms once dominated ³. Sumitomo Electric closed up 5.8% on Thursday, 24 September, the day of the briefing; Meta rose more than 10% after its Monday statement, though other news may have helped ³.

The payer of last resort

The payer is Meta, whose quarterly capital spending hit $30.1 billion in Q2 2026, up 82% on the year, while free cash flow fell to $1.7 billion ⁷. Petal's budget sits somewhere in that line. Webscale players now make up about half the subsea market, by Alcatel's own sales chief's count, and new-cable investment should reach about $13 billion between 2025 and 2027, nearly double the prior three years ⁵.

Carriers still land the thing

The counterpoint is real: Orange, a carrier, calls petabit on a transatlantic link a breakthrough 25 years after the terabit milestone ⁴. Meta is blunter about why it pays: without connectivity between its data centers, "what you have are really expensive warehouses" ⁵. The buyer became the landlord, and carriers farm what is left.

The renters are buying the ocean floor

Landing points on both coasts stay undisclosed ¹³. Watch NEC's climb toward 35%, Japan's cable-ship subsidies under review ³, and transatlantic wholesale prices. The companies that used to rent the ocean floor are buying it.