The short version
An NBN Business Fibre Zone is an area where NBN Co will build its premium business product, Enterprise Ethernet, to most premises without charging the provider for the fibre build. Before these zones, a dedicated fibre lead-in could add thousands of dollars and months of negotiation to a quote. Inside a zone, that cost usually disappears.
- What it covers: the fibre build for Enterprise Ethernet at most premises in the zone, plus no connection charge to the provider on a three-year plan.
- What it does not cover: your monthly plan, complex premises, sites already served by another network, data centres, temporary sites and your internal cabling.
- How to check: ask a provider to qualify the exact address. NBN Co’s maps and online check are indicative only.
- What it is not: the free FTTP upgrade for homes and businesses on FTTN or FTTC. That is a separate program for a different product.
If you are considering dedicated fibre, find out whether you are in a zone before you compare anything else. It changes the sums more than any other factor.
What are NBN Business Fibre Zones?
They come from NBN Co’s Business Fibre Initiative, which it describes as an investment of up to $700 million. NBN Co’s current page lists 322 zones, including a presence in 142 regional centres, and its September 2026 business fact sheet gives 323. Either way, at the time of writing (October 2026) there are more than 320.
The zones are mostly business precincts, industrial estates, suburban commercial strips and regional town centres. NBN Co says that for most businesses in them it supplies Enterprise Ethernet “with no up-front build costs, and at our most competitive wholesale service pricing”.
Victoria has a large share. In August 2021 NBN Co and the Victorian Government announced 11 new Victorian zones, taking the state’s total at the time to 72. The new ones were Benalla, Colac, Cranbourne South, Dromana, Hamilton, Lara, Pakenham North, Pakenham South, Portland, Warragul and Wonthaggi-Inverloch. Zones have been added nationally since, so check the current map rather than relying on that list.
What does the “no up-front build cost” offer cover?
NBN Co’s terms are specific, and they are terms between NBN Co and the provider rather than a promise to you.
| Item | Inside a zone (most premises) | Outside a zone |
|---|---|---|
| Fibre build from the network to the premises | No up-front build cost to the provider | A build charge may apply, quoted per address |
| NBN connection charge | No up-front connection cost on a three-year plan | Standard NBN installation charge, waived on a 36-month term under current wholesale discounts |
| Wholesale monthly pricing | NBN Co’s most competitive pricing | Priced by zone; regional zones can cost more |
| Your provider’s monthly plan | You pay it | You pay it |
| Internal cabling beyond the termination point | Yours to arrange | Yours to arrange |
NBN Co’s own wording on the exclusions is that the offer “does not apply to unforeseeably complex premises, premises already served by other providers, data centres, and temporary sites”. It also notes that “in the infrequent event that unforeseeable cost or complexity is encountered, additional charges may apply”.
Two practical points sit behind that table:
- The provider decides what reaches you. NBN Co does not set retail prices. Most Enterprise Ethernet providers advertise $0 installation on 36-month terms, but check that the quote shows no build or connection charge before you sign.
- Three years is the trigger. The free connection depends on a three-year term. Line that up with your lease, because the exit fee on a dedicated fibre service can be large. NBN Co’s own wholesale terms charge the provider 85% of the remaining monthly charges if a service it built is cancelled during the first term, which is one reason retail exit fees on these contracts are substantial.
How do you check if an address is in a zone?
There are three levels of check, and only the last one counts.
- NBN Co’s maps. NBN Co publishes downloadable maps for each zone. They are indicative, and NBN Co says so.
- NBN Co’s online address check. The business fibre campaign page has an address search. NBN Co notes the result is “based on an nbn desktop analysis of available data” and that a small number of premises will differ.
- A provider’s site qualification. A provider that sells Enterprise Ethernet runs the address through NBN Co’s systems and gets the real answer: whether it is in a zone, the price zone, and whether the premises looks standard or complex.
When you ask for a qualification, give the full street address including unit, floor and building name. In a multi-tenant building, also say where the comms room or main distribution frame is. A premises can be in a zone and still be complex if the route from the street to your floor is difficult.
How does this relate to the free NBN fibre upgrade?
The two are often confused because both involve “free fibre”. They are different programs for different products.
| Business Fibre Zones | Full fibre (FTTP) upgrade | |
|---|---|---|
| Product you end up with | Enterprise Ethernet, dedicated fibre | Fibre to the premises, shared fibre network |
| Who it is for | Businesses in a zone | Homes and businesses on FTTN or FTTC in eligible areas |
| What triggers it | Provider orders Enterprise Ethernet, ideally on a three-year term | You order an eligible higher-speed plan through a participating provider |
| Speeds | Symmetrical, up to almost 10 Gbps | Asymmetric, up to 2000/500 on business tiers |
| Typical monthly cost | Hundreds of dollars | Similar to other NBN plans at the same speed |
For a business on FTTN or FTTC, NBN Co lists business fibre plans such as 250/100, 500/200 and 1000/400 among the upgrade options. NBN Co installs its own equipment free in most cases, but complex installations can attract extra charges, and renters need the landlord’s permission because drilling and sometimes digging is involved. Moving the termination point to your comms rack is possible if the rack meets NBN’s installation guidelines.
For many small offices, that upgrade plus a business NBN plan is the sensible first step, and Enterprise Ethernet is the next one. Business-grade NBN vs home NBN covers what business plans add.
Do Business Fibre Zones give you symmetrical speeds?
Indirectly. The zone makes Enterprise Ethernet cheaper to connect, and Enterprise Ethernet is the NBN product with symmetrical speeds. Standard home and business NBN plans are asymmetric. At the time of writing, NBN Co’s business fibre tiers go up to 2000/500, which is a lot of upload for most offices but still not symmetrical.
If you have searched for “NBN symmetrical plans”, what you probably want is either a business fibre tier with high upload, or Enterprise Ethernet. NBN Enterprise Ethernet explained covers the speeds and service levels.
What should you do if you are outside a zone?
Being outside a zone does not rule out dedicated fibre. NBN Co says around 1.6 million business locations can get Enterprise Ethernet, and that for 90% of eligible premises there is no up-front build cost to providers. Fixed wireless and satellite areas are the main exception: NBN Co’s no-build-cost pricing is generally not available there.
Outside a zone, work through these in order:
- Get the Enterprise Ethernet build quoted. Some premises outside a zone still qualify with no build cost. Others get a quote you can weigh against the lease.
- Ask carriers with their own fibre. Where Telstra, Vocus, Superloop or another carrier already passes the building, their build charge may be lower.
- Check business NBN on fibre. If upload needs are moderate, a 500/200 or 1000/400 business plan may do the job at a fraction of the cost.
- Consider 5G. As a primary for a short lease or a light workload, and as the backup in every case. Business 5G vs fibre sets out the full lease comparison.
- Spread the build over the right term. A build charge that makes no sense on a two-year lease can be reasonable over five.
What business fibre costs covers build charges and how to avoid overpaying for them.
Check your address before you choose a building
The best time to check is before the lease is signed, because two buildings in the same street can sit inside and outside a zone. Kookaburra Comms is not a carrier. We qualify the address across NBN Enterprise Ethernet, carrier fibre, business NBN and 5G, confirm zone status and any build charge in writing, and then manage the order, the internal cabling and the router once the service is live. Send us the address through business internet.