LAN vs MAN vs WAN: Network Types Explained
These three describe networks by geographic scope: a LAN covers one building or campus, a MAN spans a city, and a WAN connects sites across regions, countries or the whole internet.
Side by side
| Factor | LAN | MAN | WAN |
|---|---|---|---|
| Scope | One building/campus | A city | Countries/global |
| Ownership | Usually one org | Often a provider/city network | Multiple providers/carriers |
| Speed | Very high (1-10+ Gbps) | High | Varies, often lower per link |
| Example | Office network | City fibre ring linking campuses | The internet itself |
The details that matter
Most networking study focuses on the LAN (switches, VLANs, one organisation's control) because that's where most engineers work day to day. A MAN is less commonly discussed today — historically a city-wide fibre network connecting multiple LANs (e.g., a university's campuses across a city) — the term has partly been absorbed by generic "WAN" or ISP terminology. A WAN connects distant sites, classically over provider circuits (MPLS, leased lines), now increasingly over the internet with VPN or SD-WAN overlays. See LAN and WAN for depth on each.
Frequently asked questions
What is the difference between LAN, MAN and WAN?
LAN covers a single building or campus, MAN spans a city, and WAN connects sites across regions or countries — the distinction is purely geographic scope.
Is the internet a LAN, MAN or WAN?
A WAN — actually the largest WAN in existence, interconnecting countless individual networks worldwide.
Is MAN still a commonly used term?
Less so today — most real-world discussion uses LAN and WAN, with MAN-scale networks usually just described as part of a WAN or provider network.
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