Internet availability terms, explained plainly.

Address check

An address check is a provider or checker tool that tries to determine what internet service may be available at a specific address. It is usually more useful than a city, ZIP-code, postal-code, or postcode search, but it still may not guarantee installation success.

Address qualification

Address qualification is the process a provider uses to decide whether a service can be offered at a particular address. It may consider local network records, building type, distance, wiring, technology, capacity, and installation rules.

Backhaul

Backhaul is the network connection that carries traffic from a local access area, tower, node, exchange, or aggregation point back toward the larger internet. A region may have local access problems even when broader backhaul exists, and backhaul limits can affect rural or remote service quality.

Broadband

Broadband is a general term for high-speed internet service. It is especially common in the United Kingdom, Australia, New Zealand, Ireland, and many official policy contexts. Exact definitions can vary by country and regulator.

Cable internet

Cable internet uses cable television-style coaxial or hybrid fibre/coax infrastructure for the final connection to many homes and buildings. It can be widely available in urban and suburban areas, but availability still depends on the exact network footprint and address.

Coax / coaxial cable

Coaxial cable is the round cable historically used for cable television networks. Many cable internet services use coax for the final connection into the home, often as part of a larger hybrid fibre/coax network.

CPE

CPE means Customer Premises Equipment. It is a broad term for equipment located at the customer’s site, such as a modem, gateway, router, Optical Network Terminal, fixed wireless receiver, or satellite terminal.

DSL

DSL is internet service delivered over copper telephone-line infrastructure. Performance can depend on distance, line condition, local equipment, and provider policies. In many places, DSL is a legacy option and may be slower or less reliable than newer technologies.

Fibre / fiber

Fibre or fiber refers to optical fibre networks that carry data using light signals. The spelling varies by country: “fiber” is common in the United States, while “fibre” is common in Canada, the United Kingdom, Australia, New Zealand, and Ireland.

Fixed wireless

Fixed wireless delivers internet to a fixed location using a wireless link, often from a tower or nearby access point to an outdoor or indoor receiver. It can be important in rural, edge-of-town, or hard-to-wire locations.

FTTB

FTTB means Fibre to the Building or Fibre to the Basement. Fibre reaches a building, but the final connection to individual units may use another technology or building wiring.

FTTC

FTTC can mean Fibre to the Curb, Fibre to the Cabinet, or a similar mixed network design depending on country and context. It usually means fibre reaches part of the way, with another technology used for the final segment.

FTTN

FTTN means Fibre to the Node or Neighbourhood. Fibre reaches a local node, but the final connection to the home may use copper or another technology.

FTTP / FTTH

FTTP means Fibre to the Premises, and FTTH means Fibre to the Home. These terms usually indicate that fibre reaches the customer premises or home, although the exact provider implementation should still be checked.

Gateway

A gateway is a device that often combines modem and router functions in one provider-supplied unit. Some gateways also provide Wi-Fi, firewall features, voice service support, or other provider-managed functions.

HFC

HFC means Hybrid Fibre Coax. It is a network design that uses fibre for part of the network and coaxial cable for part of the connection closer to the home or building.

Last mile

The last mile is the final part of the network that reaches a customer’s home, apartment, business, or building. It is often the part that determines what internet service is actually available at an address.

Latency

Latency is the delay between sending data and receiving a response. It matters for video calls, online gaming, remote work, and interactive applications. Speed and latency are related but not the same thing.

LEO satellite

LEO means Low Earth Orbit. LEO satellite internet uses satellites much closer to Earth than traditional geostationary satellites, which can reduce latency and improve performance in some locations.

Mesh Wi-Fi

Mesh Wi-Fi uses multiple Wi-Fi nodes or pods to extend wireless coverage inside a home or building. It can help in larger homes or difficult layouts, but it does not change the quality of the internet connection entering the home.

Modem

A modem connects a home or building to a specific internet access technology, such as cable or DSL. In some modern services, modem functions may be built into a gateway or replaced by other equipment such as an Optical Network Terminal.

Mobile home internet

Mobile home internet uses a cellular network, such as 4G or 5G, to provide internet service to a fixed home location. It is different from ordinary mobile phone data, although it may use related network infrastructure.

nbn

nbn is Australia’s national broadband network context. Availability and performance can depend heavily on the specific nbn access technology available at the address, such as FTTP, FTTN, FTTC, HFC, fixed wireless, or satellite.

ONT

ONT means Optical Network Terminal. In fibre/fiber internet, it converts the optical fibre signal into a network connection that a router or gateway can use.

Postal code

A postal code is used in Canada and some other countries for mail routing and location identification. For internet availability, it can be a useful starting point, but it is not proof that a specific address can receive service.

Postcode

A postcode is used in the United Kingdom, Australia, New Zealand, and other countries. Broadband or internet checkers may use postcodes, but actual availability can still depend on the exact premises.

Premises

Premises is a term often used in broadband and telecom contexts to mean a specific serviceable location, such as a home, flat, apartment, unit, business, or building.

Router

A router manages traffic between the internet connection and devices inside the home or building. Many routers also provide Wi-Fi, though routing and Wi-Fi are not exactly the same function.

Satellite internet

Satellite internet uses a dish or terminal to connect through satellites rather than a wired local network. It can be important in rural, remote, island, or hard-to-serve locations.

Serviceability

Serviceability means whether a provider can actually provide service at a specific address. It may depend on network records, wiring, building access, technology, capacity, and installation conditions.

UFB fibre

UFB means Ultra-Fast Broadband in New Zealand. It is commonly used in the context of New Zealand fibre broadband availability and local fibre company infrastructure.

Wi-Fi

Wi-Fi is the wireless network inside a home or building. It is not the same as the internet connection entering the property. A weak Wi-Fi signal can make internet feel poor even when the provider connection is working properly.

ZIP code

A ZIP code is used in the United States for mail routing and location identification. For internet availability, a ZIP code may be useful for a broad search, but it is not proof that service is available at a specific address.