Subsea Cables & Internet Infrastructure

According to FCC filings Starlink shut down almost 500 Starlink satellites during the first half of 2025. The company had them reenter the atmosphere where they burned up. What is striking is that these satellites were all less than 5 years old. The general consensus is that LEOs have a life expectancy ranging from 5 to 8 years. Shorter than expected life spans for the satellites will hit Starlink's income statement hard by increasing network depreciation and replacement needs. However, Starlink has managed to lower its LEO's manufacturing costs down to $500K versus initial figures around $1 million. So these production economies of scale might offset some of the higher than expected depreciation. However, there are also rocket launch costs as well. It costs Starlink about $3 million to put a satellite into orbit. The Falcon 9 costs $67 million per flight and delivers 23 LEOs into low Earth orbit. As a private company Starlink financials are a bit of mystery. The company press ...

 Amazon announced yesterday it is launching its Kuiper constellation service in 2025. The UK will be the first country to go live. Up to now Starlink, which has 4.6 million customers, has faced no competition. But the huge buzz around Starlink is not really warranted. Yes, it is a great technical achievement particularly given that a customer is being handed off from one service satellite to another approximately every 30 minutes. However, what ultimately matters are financial results. Undoubtedly, Starlink is bleeding lots of cash. There is no way one can build a massive network prior to significant sales and avoid it. Satellites cannot be upgraded. So they must be fully loaded from day one which sharply increases the capex. Furthermore, the key metrics determining profitability and net cash flow are unknown. These metrics include customer acquisition costs. The American CLECs mostly went under during the dotcom era because it cost too much to acquire customers. Starlink has also...

Satellite competes with terrestrial broadband because they are both access technologies. But all satellite networks generate traffic for the terrestrial backbones including the subsea cables. After all, there is little content stored in space! 😃 Hence satellite Internet providers must access data centers just like every other technology in the telecom world. Inter-satellite free space laser communication will bypass the terrestrial backbones to an extent, but this is really just a drop in the bucket. It works mostly for low bandwidth applications like email and instant messaging.  The graph shows the number of objects launched into low earth orbit from 1960 onward. This includes manned space craft, satellites, and unmanned spacecraft. Note that the dominant factor is SpaceX putting Starlink LEO satellites into orbit. As of January 2025, Starlink has 6,932 in space. In addition, Amazon Kuiper is deploying 3,236 LEO birds with the bulk of the fleet flying into orbit in 2025 and 2026...