For those who just left ZZ and arrived in RKSI, think the next leg is operated by the same aircraft (after unloading whatever containers are not US-bound and loading those container positions with other PANC-bound containers) will become 5X183 departing in about 2.5hrs.
That's just a guess, it's possible that it may not be the same a/c and/or it may be a different flight number because things do change and unexpected issues occur, but the normal pattern is this. En route wx West of JP has a bit of a longer than normal routing so it seems like it'll be into PANC about half an hour late even with an on time departure.
It'll likely spend 3 hrs or so on the ground in PANC and then onward to KSDF for tomorrow night's sort and entry to the domestic package stream just like a normal overnight package at that point (which will likely involve, for most people, some time in Louisville, but those with more involved domestic routings may see it route through Worldport faster to accommodate (for ex, I live in a pretty remote locale so UPS tends to get the package to Denver sooner rather than later b/c it's then got to make it onto a contracted feeder route and then 1.5 hr drive to me).