Today, StarHub issued a single-line media statement stating that iPhone 5 users of StarHub can now connect to its 4G network. However, do note that it is now available only in selected areas.
Here is the official statement
StarHub’s iPhone 5 customers can now connect to StarHub’s 4G network
Singapore, 12 November 2012 – Starting today, iPhone 5 customers will be able to connect to StarHub’s fast LTE network.
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Some other information which I think is important for your reference.
StarHub’s iPhone 5 customers can now connect to StarHub’s 4G network. Carrier settings will update for customers over the course of a few weeks to enable 4G. If a customer wants to do this immediately, instructions can be found here: http://support.apple.com/kb/
After installing this update, StarHub’s iPhone 5 customers will be able to enjoy StarHub’s 4G service in key areas such as the Central Business District (including City Hall, Orchard Road, Raffles Place, Shenton Way and Tanjong Pagar), as well as in Changi Airport, Sentosa and Singapore Expo. By end-2012, StarHub’s 4G service will be available in more than half of the island, and throughout Singapore in 2013.