List of mobile network codes in the United States
- List of mobile network codes in the United States
This is a list of Mobile Network Codes (MNC)s in the United States, used by GSM and other wireless networks using the IMSI format to uniquely identify wireless subscribers indifferent of device or phone number. The MNC is the series of digits immediately following the mobile country code, or MCC. For a full list of MCC/MNC combinations worldwide, see the Mobile Network Code page.
Considerations
Whereas the rest of the world uses two-digit MNCs, the United States nominally uses three-digit MNCs. However, due to this uniqueness, and a lack of support in international networks, carriers which are only uniquely identified via a three-digit MNC are not compatible with international roaming. As a result, in practice, most major US 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.
Also, due to expectations in competition and regulation, plus the potential for IMSI use outside of GSM networks (such as in some satellite telephone systems), the US is allocated 7 different MCCs (310-316). As a result, it is theoretically possible for up to 7 different carriers in the U.S. to have the same MNC. However, since not all international networks honor more than one MCC per country, most major providers are within MCC 310 to ensure international compatibility. Furthermore, the GSMNA, which allocates MNCs, has attempted to ensure that MNCs do not overlap anywhere within North America (telephone country code 1) -- see Global Title.
MNCs by code
Below is a list of known mobile network codes in use within the United States (MCC 310-316), divided by mobile country code (MCC) and ordered by MNC. Note that "discontinued" simply means that the carrier is not currently assigning IMSIs with that code; discontinued MNCs still in use by legacy subscribers can be found in the wild, and even old SIMs with such MNCs can be activated.
MCC 310
ee also
* Mobile Network Code
References
* [http://www.howardforums.com/archive/topic/657335-1.html "The Ultimate MCC-MNC List for the USA"]
* [http://www.csoft.co.uk/nox8/coverage_list.pl?ISO=US "United States SMS Mobile Networks"]
* [http://users.zipworld.com.au/~rmills/MCCandMNCValues.htm "List of MCC and MNC values"]
* [https://www.numberingplans.com/?page=analysis&sub=imsinr "Analysis of IMSI numbers"]
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