Overview of CBRS Radio Deployment Trends

This chart tracks the cumulative number of CBRS (Citizens Broadband Radio Service) radio device deployments over time, spanning from early 2021 archive samples (when the Key Bridge SAS commercial service was underway) through 2026-07-22.

CBRS is a shared spectrum band (3.5 GHz) in the U.S. used for private LTE and 5G networks, often in enterprise, industrial, and neutral-host scenarios.

The chart shows a sustained upward trajectory with a known mid-2024 reporting correction, then renewed expansion through 2025 and into 2026. Deployments stand at 446,349 as of 2026-07-22.

Updates and changes since the last review

• Data window: previous narrative centered on growth through mid-2025 (~“approaching 450k”); this review extends through July 2026.
• Headline changes: latest total is 446,349 CBSDs. From the series start (165,422 on 2021-08-31) that is about 2.7× growth over ~4.9 years (CAGR ≈ 22.5%), not the prior “23× / ~195% CAGR” framing.
• Trend continuity: long-term growth remains positive; monthly additions in late 2025–mid 2026 are typically a few thousand devices, not the 15k–20k monthly rates implied for earlier boom years.
• New or revised findings: after the Oct 2024 correction, year-end 2024 closed at ~396k; 2025 finished at ~432k; 2026 YTD has added roughly 14k devices by late July.
• Corrections: the 2024 dip (~20k devices removed between Sep and Oct 2024) remains explained as a SAS reporting purge of double-counted legacy records, not a real market contraction.

Overall Growth

From 165,422 on 2021-08-31 to 446,349 on 2026-07-22 (~2.7× over ~4.9 years; CAGR ≈ 22.5%). Growth is best read as a multi-year commercial expansion that has moved from rapid early scaling into a steadier mature-growth phase, not as unbounded exponential takeoff toward 1M units overnight.

Phase Breakdown

• 2021–2022 (Establishment): From ~165k (Aug 2021) to ~191k by end-2021 and ~287k by end-2022—strong early commercial adoption as certified devices and enterprise pilots scaled.
• 2023 (Expansion): Reached ~365k by year-end (+~78k YoY), still a healthy absolute build-out year for private and industrial networks.
• 2024 (Growth + correction): Peaked near ~410k in Sep 2024 before the reporting correction cut the series by about 20k in October. Year closed at ~396k. The affected period reflected double-counting when a major SAS provider failed to purge legacy records after radio upgrades/replacements (roughly Jan–Sep 2024; ~20k accumulated mis-count).
• 2025 (Steady commercial growth): Climb from the corrected base to ~432k by year-end (+~36k YoY)—positive but slower than 2022–2023.
• 2026 YTD (Continued expansion): 446,349 as of 2026-07-22. Monthly moves are generally modest (often 1k–6k), with occasional small pullbacks (e.g., March 2026).

Anomalies and Insights

The 2024 Dip: The only large downward step (~20k over one month) stands out against the otherwise upward path. That correction followed discovery of a reporting fault at a major SAS provider that had not purged legacy radio records after upgrades or replacements. The double-counting window was approximately January through September 2024; the mis-count had accumulated to roughly 20,000 units. Post-correction growth through 2025–2026 confirms the underlying market resumed its climb rather than reversing.

Growth Drivers Inferred from Trend

• Velocity: Early years added tens of thousands of devices annually; 2025 added ~36k and 2026 YTD ~14k through late July—still material, but consistent with a market past its steepest ramp.
• Implications: CBRS remains a core mid-band option for private wireless, FWA, and industrial use. Stakeholders should plan on continued net adds, not on the extreme “double every year” curves sometimes used in early commentary.

Strategic & Market Implications

Ecosystem Maturity

• Near 450,000 radios implies a large installed base of connected industrial, enterprise, and access networks.
• CBRS is no longer a pure experiment: it is production infrastructure for Industry 4.0, rural broadband, and neutral-host style deployments.

This chart paints a constructive picture of CBRS as a durable spectrum play—deployments have grown about 2.7× since the August 2021 archive baseline, with growth still positive into 2026 after a transparent 2024 reporting cleanup. The ecosystem is positioned for measured, ongoing expansion rather than a one-time spike.