Originally Posted by jjpb3
Intra-Asia may begin sooner, as SQ70s are SIN-MNL. Unless SQ coded the flights while the Philippines was still under US rule, and never bothered to change the numbers.

Actually BKK flights start even sooner: SQ60s.
Currently I see the numbers like this:
SQ001-030 USA/Canada
SQ060-199 South East Asia
SQ2xx Australia & NZ
SQ3xx Europe
SQ4xx West Asia & Africa
SQ8xx North Asia (excl. Japan)
SQ9xx Japan