麻烦帮忙查一下中国邮政挂号信是否已经寄到，单号：RR484773731CN，上海寄望美国，谢谢！

Label/Receipt Number: RR48 4773 731C N
Service(s): Registered Mail™
Status: Processed through Sort Facility

Your item was processed through and left our WALLINGFORD, CT 06492 facility on May 20, 2011 at 5:20 am. The item is currently in transit to the destination. Information, if available, is updated periodically throughout the day. Please check again later.
Detailed Results:

Processed through Sort Facility, May 20, 2011, 5:20 am, WALLINGFORD, CT 06492
Foreign International Dispatch, May 12, 2011, 9:20 am, SHANGHAI, CHINA PEOPLES REP
Foreign Acceptance, May 10, 2011, 10:32 am, PORTEE