You have mentioned in Starhub community that the Router(Singtel) has to be registered in Starhub. Any Routers can be use on Starhub ONT Fibre broadband, provided it is not locked in any way.

Singtel
Singtel is arguably the fastest data provider in the country with the best coverage. Starhub (www.starhub.com) – The second fastest data provider in the country with second best coverage, Starhub services close to 2 million mobile customers and has almost 30% of the Singapore market.

Watch all your favourite shows from Netflix with your SingTel TV set-top box. A SingTel broadband connection is required.

There are three major Internet service providers in Singapore, namely, Singtel, StarHub, and M1 and other growing providers like MyRepublic and ViewQwest.

While the average download and upload speeds reported by our TPG users — 21.8 Mbps and 4.8 Mbps, respectively — are reasonable by international standards, they fall a long way short of the blisteringly fast speeds observed by our Singtel and StarHub users.

If you have an average or large household of four people or more but do not use a computer for work and only one or two of you use services such as computers, smartphones and streaming TV at the same time, 250MB should be enough, though you may struggle at peak times if you’re often all home together.

Unless you’ve been living under a rock, existing cable TV customers would have been reminded — several times over by now — to switch to StarHub’s fibre TV service in order to continue enjoying their favourite TV programmes. The cable TV termination will see StarHub join Singtel as the only two providers of fibre TV services in Singapore.

Broadband internet commonly refers to high-speed internet access that is faster than traditional dial-up access. One of the most common broadband plans which you can get in Singapore is fibre broadband, which gives the fastest internet speed and most uninterrupted connection.

Starhub has stopped its Cable TV service, as of 30 September last year, marking the end of cable TV in Singapore. You now have two choices for a fibre TV package plan: Starhub or Singtel.

The streamed content is viewed through a website or native application that gives the viewer access to a live stream or library of television shows and movies. With a steady Internet connection and compatible device, there is little difference from what traditional broadcast options offer. What are Singaporeans spending their money on?