Week of 2026-07-27

Space Exploration Holdings filed an ex parte in docket 22-352 on the 12.7-13.25 GHz band, raising interference coordination and satellite operations issues that touch both satellite operators and fixed microwave operators. The filing marks the sole activity in this proceeding during the week of June 22.

The 12.7-13.25 GHz band sits at the intersection of two operational regimes: satellite downlinks and terrestrial mobile broadband, a pairing that has driven coordination disputes across multiple dockets. Space Exploration Holdings' entry into docket 22-352 signals continued focus on the technical and operational boundaries between these uses. Ex parte filings in spectrum proceedings typically precede or follow formal comments and serve to flag issues for staff attention before the record closes or a tentative decision circulates.

The classifier tagged both interference coordination and satellite operations across the single filing, indicating the submission addressed technical coexistence rather than policy or licensing questions. Fixed microwave operators appear in the affected-parties list, suggesting the filing either directly engaged their concerns or implicitly raised them by addressing the coordination framework. The absence of filings from other satellite operators or microwave interests during this window leaves the full scope of disagreement opaque; a single filer cannot represent a consensus or a dispute.

This filing was the sole activity recorded in docket 22-352 during the period. The concentration of activity in Space Exploration Holdings' hands—100 percent of the week's filings—reflects either the early or late stage of the proceeding, when one major stakeholder may dominate the record, or a narrower window in which only one party found cause to file. Without access to the filing's content or the docket's procedural calendar, the timing and significance of this submission remain unresolved.

Why it matters: A single ex parte on interference and satellite operations in a band shared between two operator classes suggests the technical coexistence rules remain contested, but one filing cannot reveal whether the dispute is bilateral, multi-party, or resolved among most players.

24 GHz and above: Space Exploration Holdings filed an ex parte in docket 14-177 on June 22, addressing interference coordination and satellite operations. The filing touched on both satellite operators and fixed microwave operators, the classifier found. The commission received no other submissions in this band during the week.

Filings in the mmWave proceeding remain sparse. A single actor dominated the period's activity, and the topics it raised—interference coordination between space-based and terrestrial services, satellite operational constraints—reflect the core technical tensions in bands above 24 GHz. Fixed microwave incumbents and satellite entrants occupy overlapping or adjacent spectrum, and coordination frameworks remain central to deployment timelines.

Why it matters: one filer in a week signals either a lull in the proceeding or a concentration of effort among a small set of repeat actors. The pairing of interference and satellite operations suggests ongoing work on coexistence rules, a prerequisite for any new satellite service authorization in these bands.

The 3.55-3.7 GHz band saw three filings in docket 17-258 over the week of July 14–17, all centered on CBRS operations; two-thirds of the submissions addressed spectrum sharing, while a single letter from an educational institution raised spectrum access concerns. The filing cohort split evenly among individual advocates and institutional voices—Norman Fekrat and Spectrum for the Future each filed ex parte comments, while Syracuse University submitted a letter—suggesting the proceeding continues to draw both specialist practitioners and academic stakeholders into the operational and access debates that define the CBRS framework.

Spectrum sharing dominated the week's activity. Two filings carried the spectrum sharing tag, indicating sustained focus on how incumbents, priority access licensees, and general authorized users coordinate use of the band. The classifier identified WISPs as the affected party in two submissions, underscoring their role as a primary constituency in CBRS deployment; wireless carriers and cable operators each appeared in one filing, reflecting the diversity of operators now active in the 3.55-3.7 GHz ecosystem. The concentration of CBRS operations tags across all three filings—100% of the period's submissions—confirms that operational mechanics remain the baseline concern in this docket, even as specific sharing and access questions branch into separate tracks.

Syracuse University's letter introduced an educational institution voice into the record, a minority position among the week's filers but one that signals academic interest in CBRS spectrum access. The university's appearance alongside commercial WISPs and carriers suggests the proceeding is drawing input from constituencies beyond the traditional wireless industry, though the single filing limits any inference about institutional participation trends.

The ex parte format dominated the week, accounting for two of three submissions. Ex parte filings typically signal informal advocacy or technical updates rather than formal objections or requests for relief; the prevalence of this lighter-touch instrument suggests the docket is in a phase of incremental refinement rather than contested rulemaking. No deadlines or next steps are evident from the filing activity alone.

**C-band interference and rural access dominate mid-summer filing surge**

The C band (3.7–4.2 GHz) docket 18-122 drew 38 filings over five weeks ending July 24, with interference coordination and deployment challenges anchoring more than half the record. Ex parte meetings accounted for 28 filings—the dominant form—while letters and comments filled the remainder. The filing cohort split sharply: CTIA led with 6 filings, the Coalition of Rural Wireless Carriers and Spectrum for the Future each filed twice, and 19 additional parties filed once each, together accounting for half the period's submissions.

Interference coordination emerged as the leading topic, tagged in 12 filings (32% of the period's total). Deployment, operations, and transition questions each appeared in 6 filings (16% each), while rural wireless concerns surfaced in 6 filings as well. Power levels and spectrum sharing each drew 4 filings (11%), and aviation safety appeared in 3 filings (8%)—a persistent thread in C-band proceedings tied to potential impacts on aircraft altimetry systems. Spectrum access and rural broadband each drew smaller counts, at 3 and 2 filings respectively.

Wireless carriers dominated the affected-party roster, appearing in 28 filings (74%). Aviation stakeholders filed in 6 filings (16%), satellite operators in 3 (8%), and rural carriers in 2 (5%). Public-interest groups, cable operators, and fixed wireless operators each appeared in 1–2 filings. The FCC itself was tagged in a single filing, suggesting the period's activity was largely inter-party rather than directed at agency action.

The concentration of ex parte activity—28 of 38 filings—indicates ongoing bilateral engagement with the commission over unresolved technical and operational questions. Interference coordination's prominence signals that sharing frameworks and protection distances remain contested, even as deployment timelines advance. Rural wireless and rural broadband tags in 6 and 2 filings respectively suggest persistent concern over access equity in the band's transition. Aviation's steady presence across three filings underscores the altimetry debate's durability in the C-band record.

The filing pattern reflects a proceeding in active technical refinement rather than major procedural motion. No single filer dominated beyond CTIA's 16% share, and the long tail of one-time filers (19 parties) indicates broad stakeholder engagement. The absence of major orders or notices in the verified data prevents assessment of what specific commission action, if any, prompted this filing wave; the activity itself—concentrated on coordination, deployment mechanics, and rural access—tracks the known contours of C-band implementation.

**Upper C-band — docket 25-59**

Interference coordination dominated the Upper C-band docket over six weeks ending July 24, with 31 of 69 filings—45 percent—tagged to the topic, signaling that wireless carriers remain locked on coexistence frameworks as the band moves toward deployment. CTIA filed eight times in the period, more than any other party, followed by NCTA – The Internet & Television Association with five filings and ARCTEK Satellite Productions with four. The 12 most active filers accounted for 35 filings, or 51 percent of the period's total; 34 additional filers contributed the remaining 34 filings. Ex parte meetings dominated the filing mix, with 57 of 69 submissions taking that form, reflecting the iterative, back-channel nature of technical and operational problem-solving in the docket.

Wireless carriers and satellite operators were the primary voices. Filings tagged to wireless carriers numbered 31, or 45 percent of the total; satellite operators appeared in 15 filings, or 22 percent. Aviation stakeholders filed eight times, concentrated on safety concerns; cable operators filed seven times, focused on operational impacts. Tribal nations appeared in six filings, or 9 percent of the period's activity.

The classifier identified seven distinct topic clusters beyond interference coordination. C-band deployment and satellite operations each drew 13 filings, or 19 percent apiece. Spectrum access appeared in nine filings; C-band operations and aviation safety each in seven; rural wireless in six; and cable operations in five. C-band interference itself was tagged separately in five filings, suggesting distinct technical and policy threads within the broader coexistence conversation.

The concentration of activity among a small set of repeat filers—CTIA, NCTA, and satellite operators—indicates that the Upper C-band proceeding remains a venue for established industry players to refine technical positions and coordinate with the agency. The breadth of the long tail, 34 filers in a single period, points to sustained engagement from smaller carriers, regional operators, and sector-specific coalitions. The persistence of aviation safety filings, despite the band's terrestrial focus, reflects ongoing concern about potential impacts on aircraft systems throughout this six-week window.

Why it matters: the filing pattern shows the docket is in a technical-refinement phase, with wireless carriers and satellite operators iterating on coexistence rules rather than contesting the band's basic allocation. The sustained presence of aviation and rural wireless voices suggests the FCC will face pressure to address secondary-user impacts before or during deployment, and the long tail of smaller filers indicates that regional and niche operators view the proceeding as material to their spectrum access.

Supplemental Coverage from Space

A single reply filing dominated this week's activity in the direct-to-cell proceeding, concentrated entirely on the technical interface between satellite and terrestrial networks. Satelio IoT Services USA filed in docket 23-135, the SpaceX/T-Mobile supplemental coverage from space authorization track, addressing satellite-terrestrial coordination and interference mitigation — the two technical domains that have anchored the most recent phase of this proceeding.

The filing's focus on coordination and mitigation reflects the maturation of the direct-to-cell framework past initial policy questions and into implementation detail. Both satellite operators and wireless carriers remain engaged parties in the record, a pairing that signals the proceeding continues to balance the interests of the space-based service layer against terrestrial network protection. The reply posture — rather than an initial comment or petition — suggests Satelio was responding to an earlier submission, though the specific target and the substance of the response are not available from the filing metadata alone.

Interference mitigation has been a persistent technical requirement in supplemental coverage from space authorizations, driven by the need to protect incumbent terrestrial operations in the same or adjacent bands. Satellite-terrestrial coordination mechanisms — whether through power limits, exclusion zones, or dynamic frequency assignment — remain the operational centerpiece of any direct-to-cell deployment. A reply focused on both topics in tandem suggests the record is now working through the practical mechanics of how those protections will function in real-world network operations.

The single-filer, single-filing window offers no evidence of broader coalition activity or shifting positions among the carrier or satellite operator communities. Satelio's participation alone does not indicate whether other parties have paused filings, reached consensus on outstanding technical issues, or are preparing larger submissions for a later deadline. The proceeding's next public milestone — whether a further notice, a draft order, or a comment deadline — will determine whether this week's quiet activity represents a lull or a genuine narrowing of the open record.