Section: 17.3.3 Provisioning GANC identifier
Content: The Provisioning GANC identifier shall take the form of a fully qualified domain name (FQDN) as specified in IETF RFC 1035 [19] and IETF RFC 1123 [20]. The Provisioning GANC identifier consists of one or more labels. Each label shall consist of the alphabetic characters (A-Z and a-z), digits (0-9) and the hyphen (-) in accordance with IETF RFC 1035 [19]. Each label shall begin and end with either an alphabetic character or a digit in accordance with IETF RFC 1123 [20]. The case of alphabetic characters is not significant. If the (U)SIM is not provisioned with the FQDN or IP address of the Provisioning GANC, the UE derives an FQDN from the IMSI to identify the Provisioning GANC. The UE shall derive such an FQDN as follows: 1. create a domain name as specified in 17.3.1; 2. add the label "pganc." to the beginning of the domain name. An example of an FQDN for a Provisioning GANC is: IMSI in use: 234150999999999; Where: MCC = 234; MNC = 15; MSIN = 0999999999, Which gives the FQDN: pganc.gan.mnc015.mcc234.pub.3gppnetwork.org. NOTE: If it is not possible for the UE to identify whether a 2 or 3 digit MNC is used (e.g. SIM is inserted and the length of MNC in the IMSI is not available in the "Administrative data" data file), it is implementation dependent how the UE determines the length of the MNC (2 or 3 digits).