Originally Posted by ACflyerDE

However there is no rule that codeshare flight numbers could not be used, i.e. to collect SQ PPS miles/segments on non-SQ but *A operated flights. There are also flights which have to be booked with a codeshare number to be eligible for RTW tickets, I am thinking of the TG BKK-TLV-BKK operated by LY (El Al).