Background: The BeiDou-2 system began offering services for the Asia-Pacific region in December 2012. At this time, the system could provide positioning data between longitude 55°E to 180°E and from latitude 55°S to 55°N.
Question: When did the BeiDou-2 system start offering services?
Answer:<extra_id_0>.
<extra_id_0> December 2012<extra_id_1>