SpaceX (SPCX.US) takes another step in its wireless ambitions: in talks to acquire Boost Mobile, aiming to become the fourth-largest U.S. carrier

SpaceX (SPCX.US) is in talks with EchoStar Corporation Class A (ECHO.US) to acquire its wireless service brand Boost Mobile or obtain access to its network. If the deal materializes, SpaceX would gain approximately 7.38 million wireless subscribers and a ready-made distribution platform in one stroke, paving the way for it to build a satellite-terrestrial hybrid network through Starlink Mobile and challenge the three major U.S. wireless carriers. According to reports, SpaceX is in negotiations with EchoStar Corporation Class A to acquire its wireless service Boost Mobile or obtain access to its network. Boost Mobile currently leases network capacity from AT&T (T.US) and T-Mobile (TMUS.US). The transaction consideration has not been disclosed, and neither SpaceX nor EchoStar Corporation Class A immediately responded to requests for comment. The report said SpaceX has held discussions with EchoStar Corporation Class A in recent months about launching its own branded wireless service through a transaction. People familiar with the matter said Musk himself participated in the deal discussions and met with EchoStar Corporation Class A Chairman Charlie Ergen last month. Following the news, EchoStar Corporation Class A shares rose about 7% in premarket trading, while T-Mobile, AT&T and Verizon (VZ.US) all fell more than 2%. For SpaceX, acquiring Boost Mobile or accessing its network means directly obtaining a ready-made subscriber base and distribution platform. As of the end of the second quarter, EchoStar Corporation Class A had 7.38 million wireless subscribers, primarily Boost Mobile and Gen Mobile customers. This would serve as an important springboard for SpaceX to accelerate its wireless plans. But the deal still faces practical obstacles. The report noted that Boost Mobile's existing network leasing agreements may not be transferable to a new owner without approval from AT&T and T-Mobile, so the proposed service may require consent from both carriers. This also means SpaceX's wireless ambitions depend not only on negotiations with EchoStar Corporation Class A but also on restructuring existing network leasing relationships. Strategic thrust: a "combination punch" of spectrum, satellites and ground sites Acquiring Boost Mobile is just one piece of SpaceX's wireless strategy. Its larger goal is to build a hybrid mobile network combining satellite and ground infrastructure to challenge AT&T, Verizon and T-Mobile through Starlink Mobile. On the spectrum front, SpaceX previously acquired 800MHz low-band spectrum licenses for approximately US$8 billion. Low-band signals have strong penetration and wide coverage, making them suitable for deep indoor and remote-area coverage. SpaceX also previously obtained approximately 65MHz of nationwide spectrum from EchoStar Corporation Class A, covering the AWS-3, AWS-4 and H-Block bands. The FCC has approved the related transactions and allowed flexible deployment in terrestrial, space or hybrid architectures. Analysts estimate that after the transactions, SpaceX will hold a total of approximately 80MHz of spectrum. Although still far smaller than the three major carriers, the bands are highly complementary in function: the 2GHz band handles core capacity, the 800MHz low band is responsible for coverage and indoor penetration, and the AWS-3 uplink enhances device-to-network uplink capability. On the satellite front, the FCC has approved SpaceX's second-generation Starlink Mobile constellation, allowing it to launch up to 15,000 dedicated satellites. SpaceX President Gwynne Shotwell has said the company plans to begin launching next-generation satellites in 2027, with a goal of starting commercial service by the end of 2027 or early 2028, and said service performance based on the next-generation satellites and EchoStar Corporation Class A spectrum will be "100 times better" than current service. On the ground network front, SpaceX is in talks with infrastructure companies including Crown Castle Inc. (CCI.US), American Tower Corporation (AMT.US) and Vertical Bridge to secure at least 80,000 sites across the United States for deploying cellular equipment. Musk has also proposed a more cost-effective approach: installing small cellular radios on existing Starlink user terminals, using terminals residential and commercial buildings to provide connectivity to nearby phones. If feasible, this approach could reduce the capital expenditure of building a ground network. It is worth noting that SpaceX previously attempted to lease network capacity from the three major carriers as a mobile virtual network operator (MVNO), but reportedly did not receive a positive response. This is seen as one of the backdrops for its shift toward building its own ground network and seeking to acquire subscriber channels. Market impact and execution challenges SpaceX's string of moves has already put pressure on telecom stocks. Investors are assessing how a new satellite-driven wireless competitor will change the landscape of the U.S. mobile communications market. SpaceX executives have publicly said the goal is to become a major U.S. mobile carrier and to capture a share of the roughly US$600 billion in combined annual revenue of the three major carriers. But analysts and industry experts point out that SpaceX still faces considerable challenges in building a network that could become the fourth-largest U.S. wireless carrier. The rocket and satellite company will likely need to invest heavily in ground infrastructure, customer service, handset subsidies and promotional activitiesprecisely the high-cost areas of the wireless business where the three major carriers already have extensive operating experience. If the deal to acquire Boost Mobile or access its network ultimately materializes, SpaceX will simultaneously hold spectrum, satellites, ground sites and subscriber channels, forming a "space-ground integrated" wireless network puzzle. But whether it can integrate this puzzle into a profitable nationwide network still depends on regulatory approvals, transfer of leasing agreements and ground operations execution.