E.164 is an ITU-T recommendation which defines the international public telecommunication numbering plan used in the PSTN and some other data networks. It also defines the format of telephone numbers. E.164 numbers can have a maximum of fifteen digits and are usually written with a + prefix. To actually dial such numbers from a normal fixed line phone the appropriate international call prefix must be used.
Which of the following is not the part of the e.164 number in the ITU-T numbering plan for geographic areas?

A.
SANC.SPID

B.
national destination code

C.
station code

D.
country code

E.
subscriber number