The 14 megahertz of airwaves SpaceX agreed on Thursday to buy were drawn on the federal spectrum map in July 2004, as a fix for a public safety problem. Police and fire radios in the 800 MHz band had been hit by growing interference, which the Federal Communications Commission traced primarily to Nextel’s cellular-style network, along with cellular carriers. The commission’s answer was to move Nextel to the top of the band, at 817–824 MHz paired with 862–869 MHz, behind a guard band that kept it away from first responders.
That same block is what SpaceX now says Starlink Mobile was missing. Until August, some of the licenses were still held by a T-Mobile subsidiary called Nextel West Corp.
Grain Management, the private investment firm that took the licenses from T-Mobile this summer, announced on Oct. 8 a definitive agreement under which SpaceX will acquire 100% of its nationwide 800 MHz portfolio, up to 14 megahertz of paired spectrum. The sale needs FCC approval and has other customary closing conditions. Neither company disclosed a price. The Wall Street Journal, citing people familiar with the matter, reported about $8 billion in cash, according to Broadband Breakfast, and Reuters also put the deal at about $8 billion. Neither SpaceX nor Grain has confirmed that figure.
SpaceX says the block solves a reach problem. Its 2 GHz mid-band spectrum, bought from EchoStar, carries capacity. Low-band signals travel farther and get through buildings, and SpaceX said the new spectrum will let Starlink Mobile’s signal pass “through obstacles, such as walls,” reaching phones indoors. The company also said most existing phones already support the band. In a post on X, SpaceX said the deal would “pave the way for Starlink to become a major mobile carrier in the U.S.” Elon Musk called it “the last critical piece of the spectrum puzzle” for complete phone coverage in America.
The announcement came two days after the FCC, on Tuesday, approved SpaceX’s plan for a 15,000-satellite direct-to-device constellation, with half of it due in operation by Oct. 7, 2032. Shares of AT&T, Verizon and T-Mobile fell between about 5.7% and 7% in overnight and early Friday trading, according to Benzinga and 24/7 Wall St. Those are early-session moves and were still changing at the time of writing.
Twenty-two years from Nextel’s fix to SpaceX
The 2004 order, adopted by the commission on July 8 under Chairman Michael Powell, was blunt about the cause. It called the band an “incompatible mix” of cellular-architecture systems, like Nextel’s, and the high-site radio systems used by public safety. It designated 14 megahertz at the top of the band for systems like Nextel’s and 18 megahertz at the bottom for public safety and other non-cellular users. Nextel had to give up every 800 MHz holding it had below 817/862 MHz. The block has changed hands several times since.
| When | What happened to the block | Record |
|---|---|---|
| July 2004 | FCC designates 817–824/862–869 MHz for Nextel-style systems and moves Nextel out of the spectrum public safety uses. | FCC 04-168 |
| August 2005 | FCC approves Sprint’s purchase of Nextel, including its 800 MHz licenses. | FCC approval, as reported by TV Technology and Fierce |
| 2019–2020 | As a condition of T-Mobile’s purchase of Sprint, the Justice Department requires T-Mobile to divest the 800 MHz licenses, with limits on who can buy them. Dish gets the option, at about $3.59 billion. | FCC DA 26-653; Benton Institute |
| 2023 | Dish pays T-Mobile $100 million for more time to buy. | Benton Institute, citing Fierce; Global Competition Review |
| April 1, 2024 | Dish’s option expires unused. | FCC DA 26-653, citing Dish’s SEC filing |
| March 2025 | T-Mobile agrees to swap the block to Grain for $2.9 billion plus Grain’s 600 MHz licenses. | Broadband Breakfast; FCC DA 26-653 |
| July 1, 2026 | FCC approves the swap, with conditions. | FCC DA 26-653 |
| August 2026 | The swap closes. The FCC separately lets AST SpaceMobile test satellite-to-phone service on these exact frequencies for 30 days. | Grain; Light Reading |
| Oct. 8, 2026 | Grain agrees to sell the portfolio to SpaceX. | Grain; SpaceX |
In the years between, the licenses mostly sat. In its July order, the FCC said that “for years, this 800 MHz spectrum has not been used to its fullest potential” while T-Mobile tried to sell it.
The FCC’s July order already set conditions for whoever owns the block
The July 1 order, signed by the chief of the Wireless Telecommunications Bureau, is the closest thing to a rulebook for what SpaceX is buying. The bureau agreed with concerns in the record, including a petition from the Rural Wireless Association, that Grain might sit on the spectrum. It rejected Grain’s proposed buildout deadlines of six and twelve years and imposed three and eight. It also required those deadlines to be met license by license rather than through a national average.
It also wrote a schedule for a satellite partner. By Aug. 7, Grain had to hire a neutral outside advisor and open a competitive bidding process to all satellite operators. By Nov. 5, it had to finish that process and report the outcome to the FCC, with the advisor certifying under penalty of perjury that Grain followed its own written bidding rules. If complete satellite applications are filed by Dec. 4, the order spells out the performance a satellite service must hit to count as built out. For downlink signal quality, the bar is coverage 70% of the time across 90% of each license area by Nov. 30, 2029, rising to 90% of the time by Nov. 30, 2036.
Grain’s announcement says the SpaceX sale “advances the objectives” of that order, including its competitive selection process. It does not say how many operators bid. Bloomberg reported in August that SpaceX and AST SpaceMobile were among the companies interested.
One question is still open at the FCC. Under current rules, the 800 MHz block is not one of the bands where satellite operators may provide “supplemental coverage from space” to ordinary phones. The July order deferred Grain’s request for a waiver and said the FCC would decide it once a satellite partner applies. Approval of the license transfer to SpaceX and approval of satellite service on these frequencies are separate decisions. Grain’s announcement describes the deal as supporting both ground and space service.
What SpaceX and Grain haven’t said
The announcements give no closing date, no price, no launch date for service on the new spectrum, no consumer pricing and no list of supported phones. SpaceX did not say how the 800 MHz service will be split between satellites and ground stations, beyond saying the network will combine its satellite constellation with terrestrial equipment. AT&T chief executive John Stankey has dismissed SpaceX’s cellular plans, citing regulatory hurdles and technical limits, Benzinga reported.
The 2004 rebanding order, FCC 04-168, lays out the band plan in its first pages. The July 2026 order approving the T-Mobile–Grain swap puts the satellite-partner deadlines and performance tables on pages 19 to 21. Grain’s announcement is the seller’s own account of the deal.
Sources
- FCC, Report and Order, “Improving Public Safety Communications in the 800 MHz Band,” FCC 04-168, WT Docket 02-55 (adopted July 8, 2004). Used for: the interference finding, the 14 and 18 megahertz designations, Nextel’s relocation above 817/862 MHz, the guard band.
- FCC Wireless Telecommunications Bureau, Memorandum Opinion and Order, DA 26-653, WT Docket 25-178 (July 1, 2026). Used for: the DOJ divestiture condition, Dish’s expired option, “not been used to its fullest potential,” Nextel West Corp., the buildout deadlines, the satellite-partner schedule and benchmarks, the deferred satellite waiver.
- Grain Management, “Grain Management Announces Definitive Agreement to Sell Nationwide 800 MHz Spectrum Portfolio to SpaceX” (Oct. 8, 2026). Used for: deal terms, closing conditions, the August acquisition from T-Mobile, the link to the FCC’s selection process.
- Via Satellite, “SpaceX Moves to Acquire Nationwide Low-Band Spectrum for Starlink Mobile” (Oct. 8, 2026). Used for: SpaceX’s statement on mid-band capacity and indoor coverage, existing device support, undisclosed terms.
- SpaceX on X (Oct. 8, 2026). Used for: “pave the way” quote.
- Broadband Breakfast, “Earthquake in the Sky – SpaceX Pays $8 Billion for Grain Management Airwaves to Advance Starlink Mobile” (Oct. 9, 2026). Used for: the Wall Street Journal’s $8 billion report, SpaceX’s X post, Musk’s quote.
- MLQ News, “SpaceX Agrees to Buy Nationwide 800 MHz Spectrum From Grain” (Oct. 9, 2026). Used for: Reuters’ $8 billion report.
- Benzinga, via TradingView, “Elon Musk Calls SpaceX’s 800 MHz Spectrum Deal ‘An Earthquake’…” (Oct. 8, 2026). Used for: Musk’s post, overnight share moves, the FCC’s Tuesday approval, Stankey’s comments.
- Techaeris, “SpaceX Starlink Mobile Targets US Carriers With 14MHz Low-Band Spectrum Grab” (Oct. 9, 2026). Used for: Musk’s quote, the combined satellite and ground plan, no service timeline.
- 24/7 Wall St., “SpaceX Climbs 4% on Nationwide Low-Band Spectrum Deal…” (Oct. 9, 2026). Used for: Friday morning share moves.
- iClarified, “SpaceX Strikes Deal to Acquire Nationwide Spectrum for Starlink Mobile” (Oct. 8, 2026). Used for: no pricing, launch date or device list.
- Broadband Breakfast, “FCC Approves SpaceX Request for 15,000 Direct-to-Device Satellites” (Oct. 7, 2026). Used for: the Tuesday approval and the 2032 deadline.
- Broadband Breakfast, “Grain Looking to Market 800 MHz for Direct-to-Cell” (April 1, 2026). Used for: the March 2025 T-Mobile–Grain deal terms.
- Light Reading, “AST SpaceMobile’s 800MHz tests ‘milestone’ for D2D, says AT&T” (August 2026). Used for: AST’s 30-day test on 817–824/862–869 MHz.
- Bloomberg Government, “SpaceX, AST Said Seeking Grain Spectrum Valued at $6 Billion” (August 2026). Used for: SpaceX and AST among interested buyers.
- Benton Institute, citing Fierce, “Dish agrees to pay $100 million to T-Mobile for extension on 800 MHz purchase” (October 2023) and Global Competition Review, “T-Mobile accepts $100 million fee to alter consent decree” (2023). Used for: the $3.59 billion option and the $100 million extension.
- TV Technology, “FCC Approves Sprint-Nextel Merger” (August 2005) and Fierce, “Sprint, Nextel get federal approval for merger” (August 2005). Used for: the 2005 transfer of Nextel’s licenses.