WAN stands for wide area network; LAN stands for local area network. A LAN connects devices within a limited area, such as a home or office. A WAN spans a larger area and can connect separate LANs. The internet is one example of a WAN, not another name for every WAN.
What does WAN stand for?
WAN means wide area network. It describes a network that covers a larger geographic area or links networks in separate locations. A WAN can connect individual users, multiple LANs, or other networks. Cisco describes the internet as the world’s largest WAN, which makes it an example of a WAN rather than the definition of one. Cisco’s WAN explainer covers the term and its scope.
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What does LAN stand for?
LAN means local area network. It connects devices within a limited physical area, such as a home, office, or building. A LAN can serve one user or many devices in a larger setting such as a school or office; “local” describes its scope, not a fixed device count. See Cisco’s LAN explainer.
What is the difference between WAN and LAN?
The main distinction is the network’s geographic scope and what it connects. Wired versus wireless does not determine whether a network is a LAN or WAN.
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| Feature | LAN | WAN |
|---|---|---|
| Meaning | Local area network | Wide area network |
| Scope | A limited area, such as a home, office, or building | A larger area; can link networks in separate locations |
| What it connects | Devices within a local network | Users, LANs, or other networks |
| Example | Devices sharing a home or office network | The internet, or an organization-wide network linking separate sites |
| Possible connections | Wired and wireless devices | Leased lines, cellular, satellite, or other links |
These definitions follow Cisco’s LAN, WAN, and computer networking explainers.
Is WAN the internet?
No. WAN is a category of network defined by its broad scope and connections. The internet is a prominent example: it links networks around the world. An organization can also operate a WAN that connects its own offices without that private network being the internet.
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Is LAN the same as Wi-Fi?
No. A LAN may include devices connected by Ethernet, Wi-Fi, or both. Wi-Fi is a wireless way for devices to connect; LAN describes the local network they join. Likewise, WAN does not mean “cable”: wide-area links can use different media, including cellular and satellite connections.
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In a common home setup, phones, computers, and other devices join the local network. The router connects those devices and manages traffic between them and the network beyond the home. A modem connects to the internet access provided by the ISP, and the router connects to the modem or WAN. Cisco explains these conceptual roles in its router explainer. Equipment can combine functions, so a household does not necessarily have a separate box for each role.
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In router settings, a port or setting labeled “WAN” usually refers to the connection toward the wider network or internet service, while “LAN” refers to connections for local devices. The labels describe the roles of those connections, not a guarantee that a specific cable type is involved.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Do a router and modem do the same job?
No. In the common arrangement, the router connects devices into a local network and routes traffic; the modem connects that network equipment to the ISP’s internet access. Some devices combine both functions, but the roles remain distinct. A router by itself does not provide an internet subscription or ISP connection.
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