Brunei coverage

What the Brunei numbers mean

Two numbers matter and only one of them is the one every seller quotes. The typical speed, 58 Mbps, tells you what a good moment looks like.

The tenth percentile, 15 Mbps, is the one that matters. It is the speed in the worst tenth of the day, when the cell above the station is full and everybody around you is on it too. A country with a high median and a low floor is a country that works beautifully right up until the moment you actually need it.

If the trip depends on video calls or tethering, plan around the busy figure rather than the typical one.

What happens in Brunei when the network is busy

Congestion is not a fault, it is a Tuesday evening. The question is what your eSIM can do about it, and for most travel eSIMs the answer is nothing: one wholesale agreement per country, one network, and no way out except buying a second eSIM from somebody else while standing in the street.

Here, Orbislo traffic runs over DST and Imagine. When the network you are on degrades we move you to another one, mid trip, without you asking, and tell you afterwards rather than interrupting you at the time.

Mobile operators in Brunei

• Unified National Networks (UNN): From 1 September 2019 the networks of TelBru, DST, Progresif and the international gateway operator BIG were merged into Unified National Networks, a company wholly owned by the Brunei government, which now runs the country's single mobile radio network.
• DST, imagine and Progresif: Brunei's three retail providers, DST, imagine and Progresif, sell mobile plans on top of UNN's wholesale network. Changing provider changes the plan and the customer service, not the towers a phone connects to.
• UNN, network size: UNN runs more than 600 mobile base stations carrying 3G, 4G and 5G, which it says reach 94 percent of populated areas and connecting roads, alongside over 5,000 km of fibre.
• DST, VoLTE: DST offers VoLTE at no charge to its 4G and 5G postpaid customers and its 4G prepaid customers. A VoLTE call that leaves 4G coverage continues on the 3G network, possibly at lower quality, rather than dropping.

Older networks in Brunei

• UNN phased out 2G GSM and completed the shutdown by 1 June 2021, reusing the spectrum for 3G and 4G and later 5G. A phone that only supports 2G cannot connect to any network in Brunei.
• Mobile service in Brunei began in 1989 with analogue AMPS; DST introduced GSM in 1995, 3G arrived in 2005 and 4G in 2014.

5G in Brunei

• 5G went live nationwide on 22 June 2023, announced jointly by the regulator AITI with UNN, DST, imagine and Progresif. At launch, 90 percent of populated areas had 5G ready mobile coverage, and a 5G capable phone is needed to use it.
• By the end of 2022, 92 percent of the country could receive service from 5G ready base stations, the result of a radio network modernisation UNN began in 2020 that added base stations in both populous and rural areas.

Network notes for Brunei

• The regulator's quality code requires 3G voice coverage over at least 80 percent of populated urban areas and 60 percent of populated areas classed as island locations, measured from a moving vehicle, and limits dropped calls to 2 percent per urban cell site and 3 percent in island locations.
• UNN co-owns three submarine cables, SEA-ME-WE 3, Asia-America Gateway and the South-East Asia Japan Cable, and reroutes traffic between them when one is damaged. Planned maintenance on a cable can last one to two weeks, and repairs longer.
• AITI's temporary limits on new mobile entrants ended on 1 January 2025, when the telecom market was fully liberalised. The regulator still expects few infrastructure licences because of the size of the market.