Top IP Transit Providers

The Top IP Transit Providers Powering the Internet Backbone

When you stream a movie, send an email, or access a website across the world, you’re relying on the robust, often invisible infrastructure known as IP transit. This service allows networks to pass data traffic from one point to another via the internet. Behind the scenes, a select group of IP transit providers are responsible for keeping global data moving smoothly, securely, and efficiently.

Here’s a look at seven of the top IP transit providers shaping the digital world in 2025.

1. Lumen Technologies

Lumen is one of the largest Tier 1 networks in the world, offering expansive global coverage. Its IP backbone, AS3356, is consistently ranked among the top in terms of size and performance. With extensive peering relationships and low-latency routes, Lumen is a go-to provider for enterprises, content delivery networks, and ISPs.

Highlights:

• One of the largest IP networks globally

• A strong presence and fiber footprint in North America

• Focus on secure edge computing and fiber infrastructure

2. Arelion (Formerly Telia Carrier)

Arelion, known for its AS1299 backbone, is a favorite among performance-focused network engineers. With more than 70,000 km of fiber across Europe, North America, and Asia, Arelion is renowned for speed, reliability, and extensive global reach.

Highlights:

• High-capacity, low-latency network

• Heavy investments in automation and routing optimization

• Strong in Europe and expanding in Asia-Pacific

3. GTT Communications

GTT offers IP transit with a value proposition focused on network reach, scalability, and flexible pricing. It operates one of the largest Tier 1 IP networks (AS3257) and has grown through numerous acquisitions over the past decade. While known for aggressive pricing, GTT is also recognized for solid performance and global reach.

Highlights:

• Global Tier 1 status with strong North American and European coverage

• Integration with SD-WAN and cloud networking services

• Flexible commercial terms for enterprises and service providers

4. Hurricane Electric

Hurricane Electric (AS6939) is a unique player with one of the most aggressive peering strategies in the world. It has over 10,000 BGP sessions and presence at 280+ Internet Exchanges. While often chosen for its affordability and expansive IPv6 support, it also provides excellent global connectivity for hosting companies and smaller ISPs.

Highlights:

• Largest IPv6 backbone globally

• Extensive peering and IX connectivity

• Competitive pricing for high-volume transit

5. Cogent Communications

Cogent (AS174) is known for its cost-effective transit services. While it has a reputation for less generous peering and occasional disputes with other networks, it remains a favorite for budget-conscious customers who need stable performance. Cogent’s global fiber backbone spans North America, Europe, and parts of Asia.

Highlights:

• Low-cost transit options

• Global footprint

• Popular with small ISPs and hosting providers

6. Windstream Wholesale

Windstream offers IP transit as part of its broader telecom and transport services portfolio. While not traditionally a Tier 1 provider, Windstream has grown its backbone substantially in the U.S. and is a strong regional choice, especially in underserved areas. Its services are often bundled with optical transport and wavelength offerings.

Highlights:

• Focused on North American backbone and last-mile access

• Strong play in rural and edge markets

• Integrated with SD-WAN and cloud enablement platforms

7. Zayo Group

Zayo operates a large fiber network across North America and Europe and offers IP transit via its AS6461 network. Known for dark fiber and wavelength services, Zayo has become a top-tier transit provider for hyperscalers, data centers, and cloud providers. Its extensive on-net building presence makes it a solid choice for urban data transport.

Highlights:

• Deep metro and long-haul fiber assets

• Popular with cloud and data center providers

• Strong in North American Tier 1/2 city connectivity

Final Thoughts

Choosing an IP transit provider depends on your business’s priorities: global reach, price-performance ratio, support for IPv6, or access to underserved regions. The providers above represent the elite of the industry — each with unique strengths and a significant role in how the internet operates today.

When evaluating providers, always consider factors such as network routes, latency, SLAs, peering arrangements, and redundancy. In many cases, blending multiple transit providers is the best strategy for optimizing performance and resilience.  Full Span Solutions has extensive experience in evaluating both the technical and commercial considerations with IP transit providers.