Called 800 227 4262 and selected seats for a US Airways award travel reservation. Seat availability determined via Asiana web site. Agent indicated check in at 48 hours but otherwise no options via web site for noted reservation. Seats selected immediately displayed on US Airways web site where previously nothing was displayed.

Thanks for providing the number. I couldn't find it on the Asiana site (although I have no doubt it's there; I'm just blind sometimes...)
My UA award booking now shows the chosen seats.

No option to pick seats online pre-48-hrs for bookings made through another airline? That's disappointing and inconvenient.

Old Booking numbers may not be valid on new system?

I DO have a booking (new one booked today) that DOES show up on the guest input here:

http://us.flyasiana.com/I/EN/Login.do

An older booking made is NOT showing up; so assuming PNR's may have changed from old system to new??

I have a UA award reservation that had an LH segment. I can log into to my reservation through LH and select seats. Couldn't do this before the change over.

Unfortunately, most seats in F seem to be blocked on ICN-JFK. It'd be nice to snag a window.

OZ told me that the old alpha/numeric record locators have now become an 8 digit number. While I have the new number, over the weekend the site would still not recognize either the old or new locators, and currently the site is currently down. The agent was hopeful all would be finalized by later Monday.

And the estimated live time keeps slipping. This morning it was 20:00 KST, then 21:00, now 23:00.

I'll probably have to grab the new reservation number, but I'm guessing there's still plenty of time before the site goes live.

i can report that SQ website can actually assign seats for OZ, since they're both on Amadeus now (my itinerary is SIN-SQ-ICN-OZ-JFK)

I sent an email earlier to Asiana about getting a new confirmation number for my award itinerary booked through UA and they replied:

"Dear LTabi,
Thank you for contacting Asiana Airlines. We have received your inquiry and would be happy to assist you.

Unfortunately, for online seat assignment only passengers holding Asiana Airline ticket numbers will have access to do so. For prio seat selection, please call our US Reservation Center at 1-800-227-4262 and our agents will be happy to assist you.

Thank you for your patronage of Asiana Airlines.


Sincerely,

Customer Relations
Regional Headquarters, The Americas
Asiana Airlines"

sigh...

Wait a bit; the US call center is always 5 steps behind Korea HQ. I've had over the years thoroughly wrong info from them

Ive tried the link and the mobile site with no luck. I tried the 8 digit number (with and without the dash) and the 6 digit alpha numeric. I entered my name as per the email confirmation letter from Asiana and every permutation i have been given my airline reservation systems and no luck. It comes up with all segments just fine on checkmytrip and on Thai Airways website. Not that it matters anyways as all seats show as blocked per checkmytrip

The service you are trying to reach is temporarily unavailable due to system maintenance.
We apologize for any inconvenience this may cause. Please try again later. Thank you.
Period(KST) : 22:00~23:00 on November 27

no answer to 800 number, no web site, no staff at airport (SIN)

I called this like 12 hrs before you posted to get seat assignments. it was working fine.

1-800-227-4262

keep giving me an error msg
"Reservation Information is incorrect"

Called noted US customer service center and rep provided 8 digit confirmation code to use online check-in. Email received in process included 6 digit confirmation code. 8 digit code works on Asiana web site. 6 digit code works on checkmytrips dot com. Agent indicated inability to change seat but able to change seat online. Process worked via IE 11 and without log on to frequent flyer account. Noted itinerary not associated with frequent flyer account.

I called the Asiana customer service center and I got my new 6 digit alphanumeric confirmation and a 8 digit numeric confirmation also. Also able to pull up reservation at checkmytrip with the 6 digit alphanumeric confirmation. However, still no luck in pulling my reservation on the Asiana site with either number. I think it may have something to do with the fact that my reservations were booked using United Miles.