Crown Castle has officially closed the books on one of the most significant strategic transformations in U.S. telecommunications history, completing its $8.5 billion sale of fiber and small cell businesses on May 1, 2026, receiving aggregate cash proceeds of approximately $8.4 billion after preliminary purchase price adjustments.
The Deal Structure
Crown Castle sold its fiber solutions business to Zayo Group Holdings Inc., an investor group led by DigitalBridge, while Arium Networks, an EQT Active Core Infrastructure fund company, acquired its small cells assets. Each business was valued equally, with Zayo acquiring the fiber solutions business for an enterprise value of $4.25 billion and EQT acquiring the small cells business for an enterprise value of $4.25 billion.
A Strategic Pivot Years in the Making
The deal was first announced on March 17, 2025, as Crown Castle revealed it was selling its long-haul fiber assets to Zayo and its small cell business to private equity firm EQT. The company’s board of directors approved the sale following a strategic review that assessed offers from both financial and strategic buyers proposing a variety of transaction structures.
The sale includes 90,000 route miles of fiber located in the largest U.S. markets, along with Crown Castle’s focus on its 40,000 U.S. towers. Former CEO Steven Moskowitz acknowledged that fiber “has a different business model and different customer base than towers and requires different operational capabilities.”
What Happens to the Proceeds
Crown Castle plans to use $1.0 billion of the proceeds for share repurchases under a stock buyback program approved by its Board of Directors, effective May 1, 2026, and expects to reduce outstanding debt by more than $7.0 billion.
A New Chapter for All Three Companies
Crown Castle’s new CEO Chris Hillabrant stated that the company is now the only U.S.-focused, large publicly traded pure-play tower company and is well-positioned to become a best-in-class operator in the world’s strongest wireless market.
For Zayo, the acquisition is transformative. The deal marks Zayo’s 50th and largest acquisition to date, bringing its fiber network to 224,000 route miles across North America. Zayo noted the acquisition expands its ability to deliver capacity for AI, cloud, and enterprise ecosystems.
On the small cells side, Crown Castle’s sale of its small cell assets to EQT has led to the creation of Arium Networks, a standalone company focused on the deployment of small cells, in-building, and venue-based networks across the U.S.
A Costly Lesson in Diversification
The deal does raise eyebrows among industry analysts. Crown Castle’s cumulative investment in its fiber business totaled approximately $17.5 billion — meaning the company sold those assets for less than half of what it originally spent building them. One analyst noted it was “a very good deal for Zayo strategically” if the company can finance and integrate the assets without disruption.
Looking Ahead
With the transaction now closed, Crown Castle joins a focused group of pure-play tower operators, shedding years of diversification strategy to double down on its core wireless infrastructure business. For Zayo and the newly formed Arium Networks, the real work of integration and growth now begins. The bottom line: the tower business is performing largely as expected—if you adjust for churn.
