Ethernet Private Line Pricing: The Ultimate Guide for 2026

When your business needs to move large volumes of data between two fixed locations with guaranteed performance, Ethernet Private Lines and Wavelength circuits are the connectivity products built for the job. 

Unlike standard internet access, these dedicated wide area network (WAN) connections create a private link between an "A" location and a "Z" location, delivering predictable throughput, low latency, and security for high-priority operations.

But how much do these services actually cost? And which type of circuit makes sense for your business? Pricing for Ethernet Private Lines and Wavelength circuits can vary widely depending on factors like distance, bandwidth, and whether your locations are already connected to a carrier's network. 

Here we’ll break down current pricing benchmarks using real data from Lightyear's 2026 State of Connectivity Report, explain what drives costs up or down, and help you understand when to choose one product over the other.

Ethernet Private Line Definition

An Ethernet Private Line (also called Ethernet Point-to-Point or Ethernet P2P) is a dedicated, fiber-based connection that privately transmits data between two locations using Ethernet protocol across a static fiber route. Think of it as a private highway between two buildings: no other traffic, no shared bandwidth, and no detours. 

This makes Ethernet Private Lines ideal for connecting offices to data centers, linking data centers together, or establishing reliable backhaul between key network locations.

Because the connection is dedicated, you get symmetric bandwidth (the same speed in both directions), consistent performance, and reliability backed by SLAs.

What Is a Wavelength Circuit?

A Wavelength circuit (often called a "Wave") uses Dense Wavelength Division Multiplexing (DWDM) technology to transmit data over fiber. Instead of dedicating an entire fiber strand to a single connection, DWDM splits light into multiple wavelengths, each carrying its own data stream. The result is much higher bandwidth capacity over the same physical infrastructure.

For enterprises that need to move massive amounts of data between locations, Waves offer several advantages over traditional Ethernet Private Lines: higher bandwidth capabilities, a cheaper cost per megabit of service, and more predictable latency. If your business needs 100 Gbps or more of dedicated bandwidth, a Wavelength circuit may be your only option, as Ethernet Private Lines typically max out at lower bandwidth tiers.

According to Lightyear's 2026 State of Connectivity Report, Wavelength circuits have been steadily overtaking Ethernet Private Lines as the preferred method for dedicated point-to-point data transmission. As enterprise WAN bandwidth needs continue to rise and ISPs upgrade their networks, Waves have become increasingly attractive for organizations that prioritize both performance and cost efficiency.

What Drives Ethernet Private Line and Wavelength Pricing in 2026?

Several factors influence what you'll pay for an Ethernet Private Line or Wavelength circuit. 

Distance between locations

Unlike dedicated internet access (DIA), where the connection terminates at a single site, private line and wavelength circuits connect two specific locations. The farther apart your A and Z endpoints are, the more fiber infrastructure is required to complete the connection, and the higher your monthly recurring cost will be. A circuit connecting two buildings in the same metro area will cost far less than one spanning hundreds of miles.

On-net vs. off-net connectivity

Just like with DIA, whether your locations sit on an existing carrier network matters enormously. If both your A and Z locations are "on-net" (meaning the carrier already has infrastructure in place), provisioning is faster and cheaper. If one or both endpoints are "off-net" and require construction or a last-mile buildout, expect higher costs and longer lead times. Circuits quoted between data centers tend to produce the most competitive pricing, since many ISPs maintain a strong on-net presence in colocation facilities.

Bandwidth tier

Higher bandwidth means higher cost. A 10 Gbps Ethernet Private Line will cost less than a 100 Gbps Wavelength circuit, though the cost per megabit drops sharply as you scale up. This is one of the key reasons enterprises are gravitating toward Wavelength circuits. The economics improve as bandwidth requirements grow.

Route value and demand

Certain routes carry premium pricing due to high demand or strategic importance. For example, routes offering the shortest latency path to a major financial exchange will command higher prices than a comparable circuit on a less trafficked corridor. Similarly, routes in data center-dense markets may see different pricing dynamics than those in secondary or tertiary markets.

Contract term

As with most telecom services, longer contract terms generally yield lower monthly costs. The ISP is amortizing its service delivery costs over a longer period, which translates to savings for the buyer. Most enterprise WAN circuits are quoted on 36-month terms.

Want live 2026 Ethernet Private Line and Wavelength pricing for your specific locations? Lightyear's platform delivers real-time quotes from 1,200+ carriers. Get quotes now through our questionnaire, or schedule a demo today.

2026 Ethernet Private Line and Wavelength Pricing Benchmarks

To give you a realistic picture of what these circuits cost today, we've pulled summary data from the Lightyear dataset covering quotes from the past 12 months. These quotes span a diverse mix of U.S. geographies, ISPs, and on-net vs. off-net situations, providing a useful range of what you can expect depending on the specifics of your deployment.

Most of the circuits in this dataset were quoted between data centers, or between a data center and a business facility, which means on-net pricing is reflected on one or both ends in most cases. These figures largely reflect what you'll see for regional Ethernet Private Line and Wavelength circuits. Outliers have been removed to keep the benchmarks representative.

Keep a few things in mind when interpreting this data. If you're sourcing a circuit in a well-connected colocation facility with multiple on-net carriers, expect your pricing to land near the low end of the distribution. If you're connecting locations in a complex geography or along a high-demand route, expect pricing at or above the median.

Last 12 Months WAN Circuit Pricing ($MRC) by Bandwidth and Product

Source: Lightyear 2026 State of Connectivity Report. Data reflects U.S.-based quotes over the past 12 months across a diverse mix of geographies, ISPs, and on-net vs. off-net situations.

What the Data Tells Us

Wavelength circuits are meaningfully cheaper than Ethernet Private Lines at equivalent bandwidth tiers. At 10 Gbps, the median monthly recurring cost for a Wavelength circuit is $1,385, compared to $1,807 for an Ethernet Point-to-Point connection. That's a roughly 23% cost advantage for the Wave, and the gap widens at the upper end of the pricing spectrum ($1,891 vs. $2,157 at the 90th percentile). For businesses running dedicated connections between data centers or between a data center and a major office, that savings adds up quickly over a multi-year contract term.

In addition, 100 Gbps Wavelength circuits are more affordable than many businesses expect. With a median price of $2,050 per month, a 100 Gbps Wave comes in roughly in line with 10 Gbps DIA pricing (which carries a median of $1,987 per the same Lightyear report). That means you can get 10 times the dedicated bandwidth on a private connection for a similar monthly cost to what you'd pay for dedicated internet access. 

For enterprises managing AI workloads, large-scale cloud migrations, or high-volume data replication between facilities, this cost efficiency makes 100 Gbps Waves an increasingly practical option.

Finally, the pricing spread between the 10th and 90th percentiles on 100 Gbps Wavelengths ($1,850 to $3,881) is wider than on lower-tier circuits. This reflects the outsized impact that distance, route complexity, and on-net availability have at higher bandwidth tiers. Businesses sourcing 100 Gbps circuits should be especially diligent about comparing multiple carrier options and understanding the underlying delivery infrastructure.

The 400G Wavelength Market Is Going Mainstream

According to Lightyear's 2026 State of Connectivity Report, the 400G IP transit and wavelength services market is growing rapidly, driven by AI workloads, hyperscale cloud deployments, and 5G backhaul and fronthaul requirements. 400G is now a mainstream option that more carriers are offering in more geographies, with prices dropping accordingly.

Zayo's 2025 Bandwidth Report puts the momentum in context, noting that over 50% of total wavelength capacity purchased in the prior year was via 400G waves. Many carriers now expect a proliferation of 800G optics within the next few years as well.

That said, buyers should exercise some caution when sourcing 400G services. Many service providers, particularly regional carriers, don't yet offer 400G wavelength products. 

And even among carriers that do, it's important to conduct due diligence on the actual delivery point of the underlying service. Lightyear's report notes that carriers sometimes backhaul 400G IP transit services from a true delivery point that's farther away than ideal, which can introduce latency and diversity issues. In other words, 400G service quality varies widely, and "true" 400G connectivity is less widely available than the marketing might suggest.

For enterprises in the tech vertical, this trend is already reshaping network architecture. Lightyear's report observes that software, hardware, cloud, and startup customers are increasingly purchasing 100G and 400G bandwidth for their network backbones, standing up compute-intensive data centers at latency-optimized edge locations, and leveraging high-bandwidth direct cloud connectivity where public cloud deployments exist. 

Average circuit bandwidth purchased across Lightyear's dataset is growing at approximately 20% compound annual growth rate (CAGR), and 100 Gbps (with some 400 Gbps) connectivity is now making up a real share of enterprise bandwidth procurement.

Outside of the tech sector, bandwidth growth follows the same trajectory at a slower pace, though AI-driven network demands may accelerate it.

When to Choose Ethernet Private Line vs. Wavelength

Ethernet Private Lines still serve a purpose, but the range of situations where they're the best option is narrowing.

Ethernet Private Lines remain a solid choice for businesses that need dedicated point-to-point connectivity at bandwidth tiers below 10 Gbps, or in situations where the carrier's network doesn't support DWDM infrastructure between your locations. They're well understood, widely available, and come with familiar SLA structures. For a 1 Gbps connection between an office and a data center in the same metro area, an Ethernet Private Line is likely the simplest and most cost-effective solution.

Wavelength circuits become the clear winner when bandwidth requirements reach 10 Gbps and above. The economics and performance data covered earlier only widen in Wavelength's favor at higher tiers, making them a strong fit for demanding workloads like real-time data replication, AI model training, high-frequency trading, and large-scale backup and disaster recovery.

A few questions can help clarify which product fits.

• How much bandwidth do you need today, and how much do you anticipate needing in the next three to five years? If growth is part of the plan, starting with a Wavelength circuit gives you more room to scale.

• Are both of your endpoints in well-connected data centers? If so, Wave pricing will likely be very competitive.

• Does your workload demand the lowest possible latency? Wavelength circuits can offer more predictable latency performance, particularly over longer distances.

Get Started with Your Ethernet Private Line or Wavelength Procurement

WAN circuit pricing varies enough that sourcing the right connection takes more than a single phone call. 

Despite the complexity, connectivity is a commodity, and it should be procured and managed like one. Lightyear's platform lets you define what you need and collect quotes from carriers across the country, giving you the pricing transparency and vendor-agnostic comparison that this industry has historically lacked.

If your company needs help procuring, implementing, managing, or rebidding your telecom services, learn how Lightyear automates this process while delivering significant savings.