A MAN is optimized for a larger geographical area than a LAN, ranging from several blocks of buildings to entire cities. MANs can also depend on communications channels of moderate-to-high data rates. A MAN might be owned and operated by a single organization, but it usually will be used by many individuals and organizations.

MAN-Metropolitan Area Network......

Many lans are connected to form a MAN.If a lan runs for a few kms(may be within an organization) a MAN can run upto many kms and even can cover a city...the most common example of MAN is LOCAL CABLE NETWORK......