Apparatus, and an associated method, for facilitating selection of a I-WLAN, or other network, by a wireless device. An electronic storage element is provided. A listing of specific network identifiers is stored at the electronic storage element. And, a listing indicia identifier is also stored at the electronic storage element. The listing indicia identifier is configured to identify formatting of the specific network identifiers. Formatting of the information permits compliance with 3GPP TS 31.102 [13] that requires that at least ten WSID entries to be storable at a WSID list.