On-net and off-net are labels from a provider’s own inventory that describe how it reaches a location. A building is on-net when the provider classifies it as served from its own network footprint. It is off-net when the provider reaches it by ordering access that it does not classify as its own, often called a Type II circuit, then connects that access to its network. Providers draw the line differently: some count leased or wholesale facilities as on-net, and terminology varies, so the label tells you how the provider sees the location, not who supplies or repairs each segment. Between the two is near-net, where the provider’s network is close by and a short build would bring the building on-net. Which one applies to your address drives price and lead time, and it shapes, but does not settle, who handles repairs and whether two circuits share a path.
At a glance
- On-net: the provider classifies the location as served from its own network footprint.
- Off-net: the provider reaches you by ordering access it does not classify as its own, usually from another carrier.
- Near-net: the provider’s network is nearby and needs a short build.
- On-net service often has shorter lead times and lower costs; off-net adds a second carrier to installs and repairs.
- Providers classify differently, and some count leased or wholesale facilities as on-net, so verify whether any third party supplies or repairs each segment.
What problem it solves
Buyers often compare quotes for the same circuit and see very different prices and install dates. Much of that difference comes from how each provider would reach the building. A provider that is already on-net can often activate service with equipment and cross-connects alone. A provider that is off-net must order access from a local carrier, wait for that carrier’s install, and coordinate between two networks.
Knowing a building’s on-net status for each provider helps you read quotes, set realistic move-in dates and plan redundancy. It also gives a first clue about who will be involved when service fails: off-net circuits add a second carrier for the last mile, while on-net circuits usually keep the access within the provider’s own operations. Even on-net, parts of the path, such as building risers or a leased lateral, may belong to someone else, so ask who repairs each segment.
How it works
On-net. The provider’s inventory lists the building as served from its network footprint, often with fiber terminating in a telecom room near the minimum point of entry. The underlying facilities vary: the provider may own the fiber, lease it, hold it under an indefeasible right of use (IRU), use wholesale access it classifies as part of its footprint, or rely on the building’s own riser infrastructure. Two providers may label the same arrangement differently. Ordering usually means installing equipment, activating a port and running cabling to your suite.
Near-net. The provider’s fiber passes nearby. Bringing it into the building means a lateral build: permits, construction, building access and sometimes landlord agreements. Providers may waive or charge build costs depending on the contract value and their interest in the building.
Off-net. The provider orders access it does not classify as its own, typically a local access circuit from another carrier that serves the building, such as an incumbent or a competitive local exchange carrier, and connects it to its own network at an interconnection point. You see one bill and one contract, but two carriers handle the physical path.
Serviceability checks. Providers keep databases of their on-net buildings and near-net distances. Aggregators and advisors can check many providers at once and compare on-net, near-net and off-net options for an address.
Diversity. Two providers that are each on-net can still share a building entrance, conduit, lateral or even underlying fiber, so on-net status alone does not establish carrier diversity. It does improve the odds compared with two providers that both rely on the same off-net carrier for access. Ask each provider for its route, entrance and demarcation point.
To compare on-net options for your address, see our Network Aggregation solution page.
When it matters for buyers
- Choosing a new office. A building with several on-net providers usually gives you more choice and faster installs; check routes before counting on diversity.
- Reading quotes. Ask each provider whether the quote is on-net, near-net or off-net before comparing price and lead time.
- Planning redundancy. Two circuits, on-net or off-net, can share the same underlying carrier, entrance or conduit.
- Troubleshooting. On off-net circuits, expect longer repair coordination between carriers.
- Renewals. A provider that has since built into your building may offer lower on-net pricing.
Questions to ask vendors
- Is our address on-net, near-net or off-net for you?
- If on-net, do you own the fiber into the building, or do you lease it or use another party’s lateral or risers?
- If off-net, which carrier provides the local access, and how do you handle repairs across both networks?
- If near-net, what build is needed, who pays for it and what is the realistic lead time?
- Which building entrance, conduit and riser will the circuit use, and where will your demarc be?
- Does the SLA cover the whole path, including any off-net access or third-party segments?
- If we buy from you and another provider, will both circuits share any carrier, conduit or building entrance?
How it differs from dedicated internet access
Dedicated internet access is a type of service; on-net and off-net describe how a provider reaches the building to deliver it, or any other service. The same DIA product can be delivered on-net, from what the provider classifies as its footprint, or off-net, over access it orders from another carrier. The product name and SLA may look identical, but install time, repair coordination and diversity can differ, so ask how each quote would be delivered.