Overview[1]#

Mobile Network Code (MNC) is a three digit code (North America) or two digit code (Everyone else) that is used in combination with a Mobile Country Code (MCC) to identify a Mobile Network Operator uniquely

The combination of Mobile Country Code and Mobile Network Code is called Home Network Identity (HNI) and is the combination of both in one string.

The combination of the Home Network Identity (HNI) with the Mobile Subscriber Identification Number (MSIN) the result is the so called International Mobile Subscriber Identity (IMSI).

North America#

North America nominally uses three-digit Mobile Network Codes whereas the rest of the world uses two-digit Mobile Network Code. Due to this uniqueness, and a lack of support in international networks, carriers which are only uniquely identified via a three-digit Mobile Network Code are NOT compatible with international roaming. As a result, in practice, most major United States carriers have MNCs ending in 0, so that they are uniquely identified by the first two digits, thereby providing their subscribers with compatibility on international networks.

More Information#

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« This page (revision-7) was last changed on 15-Aug-2016 15:55 by jim