How business fiber broadband and Dedicated Internet Access differ on speed, reliability, support and price, and how to choose.
When a business shops for internet, the quotes usually come back in two very different price ranges. One is business fiber broadband. The other is Dedicated Internet Access, or DIA. Both can run over fiber and both can advertise the same speed, so why does one cost so much more?
The difference isn't the cable. It's what the provider promises you about that connection. Here's how to tell which one your business actually needs.
Business fiber broadband is a shared connection. Your traffic travels over the provider's network alongside other customers in your area until it reaches the wider internet. Speeds are listed as "up to" a number, and most of the time you'll get close to it.
It's a good product. Modern fiber broadband is fast, often symmetrical (the same upload and download speed), and much cheaper than dedicated service. For many small and mid-sized offices, it's all they need.
What you usually don't get is a firm guarantee. Service level agreements on broadband, if there are any, are limited. When something breaks, repairs go into the provider's general business queue.
DIA is a circuit reserved for your business alone. The bandwidth you pay for is yours at all times, whatever your neighbors are doing. That's where the price difference comes from. The provider is setting aside capacity just for you and standing behind it in writing.
DIA typically includes:
| Business fiber broadband | Dedicated Internet Access | |
|---|---|---|
| Bandwidth | Shared, "up to" speeds | Reserved for you, guaranteed |
| Upload speed | Often symmetrical on fiber, not always | Symmetrical |
| Service level agreement | Limited or none | Uptime, performance and repair commitments |
| Support | Standard business queue | Priority, with proactive monitoring |
| Installation | Often days to a few weeks | Often weeks to months, especially if construction is needed |
| Contract | Short terms common | Multi-year terms common |
| Price | Lower | Higher, often by a wide margin |
DIA earns its price when an outage or slowdown costs real money. Consider it if:
Business fiber is usually the right choice for small offices, branch locations, and teams whose work can tolerate the occasional slowdown. Many businesses also pair the two: DIA as the primary connection, with fiber broadband as an affordable backup that takes over if the main circuit goes down.
DIA pricing depends on your exact address, whether fiber already reaches your building, the bandwidth you choose, and the length of the contract. Two buildings on the same street can get very different quotes. Prices for the same speed also tend to fall over time, so a circuit signed several years ago may now cost well above today's rates.
That's why it pays to get several quotes, and to recheck the price you're paying before a renewal rolls over automatically.
We compare internet options from multiple providers for your exact address, so you see business fiber and DIA quotes side by side. For AT&T internet circuits you already have, we check your price against current AT&T rate cards and flag circuits that cost more than they should. We also track your contracts and remind you before anything auto-renews.
Shopping for internet or facing a renewal? Request a free quote and we'll compare options for your locations, or book a quick call.