Before you start

Passport or Macao SAR Resident Identity Card — registration is mandatory
An unlocked phone
An idea of how often you will cross into Hong Kong or Zhuhai

Step-by-step

1
Register the SIM — it is a legal requirement
Macau's cybersecurity law, in force since 22 December 2019, requires all prepaid card users to register their name and identification. Buy at an official CTM or China Telecom store or the airport counter and register with your original document. There is a cap on how many prepaid cards one person may register.
In personWho: You~15 minSIM from a few dozen patacas
2
Choose CTM unless you have a reason not to
CTM is the incumbent, holds the large majority of the mobile and almost all of the broadband market, and has the most developed 5G footprint. China Telecom Macau is the main alternative and is worth considering if you spend a lot of time on the mainland side.
In personWho: YouMinutesFree to choose
3
Get a tri-area plan if you cross borders
Macau, Hong Kong and mainland China are separate networks. Operators sell tri-area prepaid and postpaid plans covering all three, which is far cheaper than roaming if you commute to Hong Kong for work or cross to Zhuhai for the weekend. Decide this before you buy, not after your first roaming bill.
In personWho: YouAt purchaseModest premium over a Macau-only plan
4
Sort home broadband through the building
CTM dominates fixed broadband and most residential buildings are already wired. Ask the landlord what is installed and whether the account can simply be transferred — it usually can, and that is much faster than a new installation.
In personWho: You (with your landlord)DaysBroadband packages from a few hundred patacas a month
5
Note the operator consolidation
SmarTone ceased Macau operations in November 2024 and CK Hutchison sold 3 Macau to CTM in January 2026, with 3 continuing to operate under a separate licence. Older guides listing four independent operators are out of date, and some legacy plans have been migrated.
OnlineWho: YouWorth five minutes before choosingFree

Documents you’ll need

Original passport or Macao SAR Resident Identity Card
Your phone, unlocked
Macau address, for postpaid plans and home broadband
Payment card or cash

Things most newcomers don’t know

SIM registration is a legal requirement here, under the cybersecurity law.

Macau's Cyber Security Law has been in force since 22 December 2019 and requires prepaid card users to register their name and identification, with a cap on the number of cards one person may register. This is not a shop policy you can talk your way around, and an unregistered or wrongly registered SIM causes problems the moment you need it for banking two-factor authentication.

Source: Macao SAR Cyber Security Law; operator registration terms

Macau, Hong Kong and Zhuhai are three separate mobile markets an hour apart.

The Hong Kong–Zhuhai–Macau bridge and the Gongbei crossing make border-hopping routine, but your Macau SIM roams the moment you cross either. Operators sell tri-area plans precisely because so many people live across two or three of these jurisdictions. If your life spans the delta, buy one of those rather than paying roaming twice a week.

Source: CTM / SmarTone tri-area plan documentation

The operator market shrank, and older guides are wrong about it.

SmarTone withdrew from Macau in November 2024, and CK Hutchison sold 3 Macau to CTM in January 2026 for MOP 10 million, with 3 retaining a separate licence. What was a four-operator market is now effectively two groups. Guidance written before 2025 that tells you to compare four carriers is describing a market that no longer exists.

Source: Macau Post Daily; Macau Business on the CTM–Hutchison transaction

CTM's broadband dominance means the landlord's existing line is usually the fastest route.

CTM holds the overwhelming majority of Macau's fixed broadband market and most residential buildings are already served. Transferring an existing account into your name typically takes days; arranging a fresh installation in an older building can take considerably longer and needs the owner's cooperation. Ask at the viewing.

Source: CTM market position; community-reported

Common mistakes to avoid

Buying an unregistered SIM and finding it fails bank verification
Using a Macau-only plan while commuting to Hong Kong and paying roaming twice a week
Following a pre-2025 guide that assumes SmarTone or an independent 3 Macau still operates
Arranging a new broadband installation when the flat already has a transferable line
Assuming a Hong Kong SIM covers Macau — it roams

Some of this may be out of date. Spotted something inaccurate? Help us keep it right for the next newcomer.