Mobile Country Code (MCC) and Mobile Network Code (MNC)
together identify a GPRS PLMN of an operator. PLMN Ids
other than home PLMNs are considered as foreign. There
will be some situations where some foreign PLMNs has to
be treated as trusted PLMNs.
This table contains the list of PLMNs, there can be one
home PLMN entry and multiple trusted PLMN entry.