Crown Castle’s Fiber Solutions business

Name

Crown Castle’s Fiber Solutions business

Legal name

Crown Castle International Corp

Website

https://zayo.com

Company type

Private

Founded year

2007

Operating status

Acquired

Headcount range

1,001–5,000 employees

Ownership category

akta.pro rank

Product category

Telecommunications Infrastructure / Fiber Network Services

NAICS

Wired and Wireless Telecommunications Carriers (except Satellite) (51711)

SIC

Telephone Communications (No Radiotelephone) (4813)

akta.pro primary industry

Wholesale Wavelength, Spectrum & Dark Fiber Providers (IRU/Leases) (HDAIALAI)

Keywords

• Fiber infrastructure services
• Dark fiber leasing
• Metro fiber networks
• Small cell backhaul
• Wavelength services

Headquarters

HQ city

Houston

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Infrastructure, Operations, Personnel, Technology or R&D, Marketing or Sales

Revenue model

1. Fiber Infrastructure Services: Crown Castle's Fiber Solutions business generated recurring revenue through long-term IRU (Indefeasible Right of Use) contracts and lease arrangements for metro and long-haul fiber infrastructure serving carriers, enterprises, and hyperscale customers.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels4 records

Core offering

Crown Castle's Fiber Solutions business provides fiber-based connectivity services, including dark fiber leases, wavelength services, small cell backhaul, and private fiber networks to carriers, enterprises, data centers, and government customers. The business operates approximately 90,000 metro-dense route miles of fiber across major U.S. metropolitan markets.

Product overview

Zayo operates a platform-plus-modules architecture for fiber and network infrastructure. The core platform is built on an extensive physical fiber network spanning over 240,000 route miles and 34 million fiber miles across North America and Europe. Crown Castle's Fiber Solutions business was acquired in May 2026, adding 90,000 metro-dense route miles. The product portfolio is organized into four layers: (1) Fiber & Transport — Dark Fiber, Private Networks, Wavelengths, and Wireless Infrastructure providing the physical connectivity substrate; (2) Network Connectivity — CloudLink, DDoS Protection, Dedicated Internet Access, DynamicLink, Ethernet, IP Transit, STARLINK, and WANs delivering lit services and cloud integration; (3) Managed Edge — Managed SD-WAN, SASE, and Managed Firewall providing security and network optimization; and (4) Voice & Collaboration — Zayo SIP Solutions and Zayo UC+ (integrating RingCentral) delivering communications services. ENA by Zayo extends the platform to K-12 education sectors.

Differentiator

Problem solved

Functional benefit

Products and services

• Dark fiber services Leased unlit optical fiber pairs on metro routes, allowing carriers and enterprises to self-provision their own optical transport equipment. Targeted at buyers that need dedicated, scalable capacity over predictable long-term contracts.
• Wavelength services High-capacity, lit optical wavelength transport between locations. Designed for customers requiring turn-up of dedicated high-bandwidth links (e.g., 10G/100G/400G-equivalent) without operating their own optical line systems.
• Small cell backhaul Fiber backhaul connectivity for outdoor small cell and 5G densification nodes in urban venues. Sold to mobile network operators and neutral-host deployers that need fiber-deep connectivity in metro corridors.
• Private fiber networks Dedicated private fiber network connectivity for enterprises, data centers, and government agencies requiring secure, isolated transport between sites.
• Metro fiber connectivity Lit managed connectivity (Ethernet, IP, and optical services) delivered over the metro-dense fiber footprint for enterprise and carrier customers across major U.S. markets.

Quantifiable outcome

• Adds 90,000 metro-dense route miles to Zayo's network
• +1 more outcomes

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Partnerships

Nine partnerships are on record, tiered core, strategic and minor.

• NokiacoreTechnology or Integration · 29 October 2025Nokia is deploying next-generation IP network architecture to enhance Zayo's leading IP network infrastructure. This partnership focuses on future-ready network technology upgrades across Zayo's combined fiber footprint including Crown Castle assets.
• EquinixcoreStrategic or Co-development Partner · 25 September 2025Zayo and Equinix co-developed the AI Infrastructure Blueprint, an industry-first joint architecture framework defining how next-generation infrastructure powers AI workloads. The companies have also conducted successful 400G data center connectivity trials connecting London and Paris sites.
• RingCentralstrategicTechnology or Integration · 9 September 2025Zayo integrated RingCentral's RingEX and RingCX solutions into its Zayo UC+ offering for unified communications and contact center capabilities, enhancing managed communications services on the combined network.
• NetskopestrategicTechnology or Integration · 3 September 2025Zayo partnered with Netskope, a Secure Access Service Edge (SASE) leader, to integrate Netskope's best-in-class Security Service Edge (SSE) capabilities into Zayo's Managed Edge portfolio, delivering edge-to-core-to-cloud security solutions.
• Starlink (SpaceX)strategicTechnology or Integration · 25 February 2025Zayo became an authorized Starlink reseller, offering Managed Starlink LEO satellite connectivity to extend availability and resilience for organizations in remote, mobile, and high-risk environments. This complements the terrestrial fiber network post-acquisition.
• InfineracoreTechnology or Integration · 18 February 2025Infinera provided its ICE7 seventh-generation coherent optical engine for Zayo's record-breaking 1 Tb/s transmission trial over 1,391 km on Zayo's live North American network, demonstrating industry-leading optical performance on the combined network.
• VolteraminorStrategic or Co-development Partner · 24 January 2024Voltera, a developer and operator of charging infrastructure for zero-emission vehicle fleets, partnered with Zayo to bring high-bandwidth connectivity to EV fleet charging infrastructure, leveraging Zayo's fiber network for reliable, low-latency connectivity.
• Kao DataminorStrategic or Co-development Partner · 26 June 2023Kao Data, a specialist developer and operator of high-performance data centers for enterprise, cloud, HPC and AI, partnered with Zayo to expand lit and dark fibre connectivity options at its Harlow data center campus.
• Fermaca NetworksstrategicStrategic or Co-development Partner · 11 May 2023Zayo and Fermaca partnered to deliver the most advanced cross-border connectivity between the U.S. and Mexico in 20 years, with connections to the growing data center hub of Queretaro. This partnership enhances cross-border connectivity on Zayo's expanded network.

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Cogent Communications: Cogent is a wholesale-focused IP transit and fiber operator serving carriers, enterprises, and content providers globally. Closely comparable business model in dedicated fiber and wavelength services to similar enterprise/carrier customers.
• ExteNet Systems: ExteNet is a Crown Castle-owned (via sale from DigitalBridge) provider of fiber and small-cell infrastructure for wireless carriers and enterprises. Directly comparable in the small-cell densification and fiber-to-the-tower use case that Crown Castle Fiber Solutions served.
• Zayo Group: Zayo is the acquirer of Crown Castle Fiber Solutions and operates the most directly comparable U.S. metro and long-haul fiber footprint. Both provide dark fiber, wavelengths, and managed services to carriers, enterprises, and hyperscalers under similar IRU/lease economics.
• FiberLight: FiberLight operates metro dark fiber networks across major U.S. cities serving carriers, enterprises, and data centers. Highly comparable in scale and customer mix to Crown Castle's Fiber Solutions metro-dense footprint.
• Lightpath (Crown Castle subsidiary): Lightpath is the remaining Crown Castle-owned fiber business focused on enterprise customers in the Northeast U.S. Historically part of the same Crown Castle Fiber Solutions portfolio and offers nearly identical enterprise metro fiber services.

Broad incumbents

• AT&T Business: AT&T Business offers a national fiber backbone plus metro connectivity for enterprises and carriers. While broader in scope, it directly competes for wholesale IRU, wavelength, and enterprise managed services contracts.
• Verizon Business: Verizon operates one of the largest U.S. fiber footprints and provides enterprise dark fiber, wavelength, and managed services. Competes directly for large enterprise and carrier wholesale contracts while also serving its own wireless network needs.
• Lumen Technologies: Lumen is a large incumbent U.S. fiber and managed services carrier with significant metro and long-haul assets, including the former Level 3 footprint. Competes head-to-head for enterprise, carrier, and hyperscale fiber contracts.

Regional players

• Frontier Communications: Frontier operates a significant U.S. fiber footprint with both residential and enterprise/business services. Comparable as a fiber-based service provider to enterprises and carriers, though more weighted to retail broadband than pure wholesale.

Emerging players

• Bandwidth IG: Bandwidth IG is a fast-growing metro dark fiber provider focused on hyperscale data center connectivity in U.S. tier-2 and tier-3 markets. Overlaps with Crown Castle Fiber Solutions on hyperscale DCI and enterprise dark fiber.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/CrownCastle
• LinkedInlinkedin.com/company/crown-castle

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Crown Castle’s Fiber Solutions business