SOUTH AFRICA · EXPAT GUIDE
Getting online in South Africa is easy once you know the registration rule, which every mobile line must follow.
To get a working phone line in South Africa, you buy a SIM from one of four operators and register it with your passport. Vodacom and MTN are the largest networks, and home internet usually means fibre.
Foreign visitors and new residents face the same rule as citizens. The steps are quick, but they differ slightly at the airport and in a shop.
Key Facts
- —The rule Every SIM, including eSIMs, must be registered under South Africa’s RICA law.
- —The documents Visitors need a passport, and usually proof of address unless they register at the airport.
- —The networks Vodacom and MTN are the largest, with Telkom and Cell C behind them.
- —The speed 5G reaches about 58% of people, but 4G still carries most traffic.
- —The home Fibre starts around R650 (US$39) a month; plan a battery for your router.
In plain English
RICA is the law that makes every SIM card owner prove who they are. Fibre is a fast home internet line laid to your building. Load shedding means scheduled power cuts. ICASA is the telecoms regulator. UPS is a small battery that keeps a router running.
Buying a SIM as a Visitor
You can buy a prepaid SIM at the airport, in mobile shops and in many supermarkets. OR Tambo International Airport in Johannesburg is the easiest place, because the registration can be done at the counter.
Bring your passport, which is the document operators ask foreigners for.
Away from the airport you will usually also need proof of address dated within three months. A hotel or Airbnb booking confirmation that shows your name and the street address is normally accepted.
How RICA Registration Works
RICA is the Regulation of Interception of Communications and Provision of Communication-Related Information Act. It requires every SIM, whether prepaid, contract or eSIM, to be linked to a verified identity.
An unregistered line can be blocked, so do not skip it. Registration is free of charge at the operators’ own outlets, but ask before you pay anyone to do it for you.
Keep a copy of your passport page and your address document on your phone. That makes online registration through an operator’s app or website quicker if you buy elsewhere.
Which Network to Choose
South Africa has four main mobile operators: Vodacom, MTN, Telkom and Cell C. Vodacom and MTN are the biggest and are usually considered to have the best coverage.
Cities and main roads are well covered by all of them. In remote areas such as game reserves and mountain passes, coverage can drop, so check the operator’s map for your route.
Resellers and travel eSIM sellers use these same networks. If you plan to stay for months, a local SIM is usually the simpler long-term choice.
4G, 5G and What to Expect
ICASA says 5G reached about 58% of the population in 2025, up from 46.6% a year earlier. The rollout is concentrated in cities.
4G is still the everyday workhorse. Opensignal data reported by Engineering News show that in the first quarter of 2026, owners of 5G-capable phones spent only 11.1% of their connected time on 5G and 86.1% on 4G.
For a visitor, that means 4G is what you will mostly use. Check that your phone is unlocked before you leave home, and ask your US carrier whether its roaming plan is cheaper than a local SIM.
Home Internet: Fibre
Fibre is the standard for homes and apartments in cities. The main network owners are Vumatel, Openserve (the wholesale arm of Telkom) and Frogfoot, and internet providers sell plans over their lines.
Plans with 50 Mbps start from around R650 (about US$39) a month, depending on the network and provider. We converted at 16.57 rand per dollar, the EODHD market rate on 23 October 2026.
Which network serves your street decides your choices, so check coverage by address before you sign a lease. Some buildings are covered by only one network.
Power Cuts and Your Router
The fibre line itself does not need electricity, but your router and the fibre box in your home do. During local outages and scheduled power cuts, known as load shedding, an unprotected router goes offline.
Eskom, the state power utility, projected no scheduled load shedding in its base case for its winter outlook, April to August 2026. Cable theft and local faults still cause outages, so a small UPS is cheap insurance.
Power costs also matter for your budget, as our report on the Eskom tariff hearing shows.
Remote Workers and Long Stays
Remote workers should test speeds before committing to a rental. Our guide to the South Africa digital nomad visa explains how long you can work from the country.
Budget planners can compare city costs in our Johannesburg and Cape Town cost of living guides. Apartment buildings in Sandton and Sea Point often have fibre already installed.
Everyday Tips for Staying Connected
Prepaid users top up airtime and data through the operator’s app, vouchers sold in shops and supermarkets, or their bank’s app. Set a low-balance alert so that your data does not run out when you need a map or a ride-hailing app.
Many malls, cafés and hotels offer free Wi-Fi, but public networks are not private. Avoid banking on them, and use your own mobile data for sensitive logins.
Phones are also a target for street theft, a risk the US State Department mentions when it describes crime in South Africa. Our safety guide explains how to carry and use a phone in busy areas.
Download offline maps before you travel to rural areas, and save key numbers such as your accommodation and embassy. That way a weak signal does not leave you stranded.
What It Means for You
Register your SIM at the airport, carry your passport, and expect 4G rather than 5G in most places. If you rent, ask which fibre network serves the building and whether the router has battery backup.
More context on settling in is in our South Africa hub and our guide to the best places to live.
What We Could Not Confirm
We did not publish prepaid data prices, because operators change bundles often and we could not verify current rates from an official source. Check the operator’s website or shop before you buy.
Frequently Asked Questions
Can a tourist buy a SIM card in South Africa?
Yes. You must register it under RICA with your passport, and you may also need proof of address such as a hotel booking, unless you register at the airport.
Which network is best in South Africa?
Vodacom and MTN are the largest and are usually seen as having the widest coverage. Check each operator’s coverage map for the places you will visit, because rural areas vary.
Does an eSIM need RICA registration?
Yes. RICA covers prepaid, contract and eSIM connections, so you still need to verify your identity before the line is fully active.
How fast is home internet in South Africa?
Fibre plans on networks such as Vumatel, Openserve and Frogfoot start around 50 Mbps. Speed and price depend on which fibre network serves your street.
Do power cuts stop my internet?
The fibre line itself does not need power, but your router does, and network equipment can fail in long outages. A small battery backup (UPS) keeps your router running through short cuts.
Sources: ICASA (State of the ICT Sector report, March 2026), Opensignal via Engineering News, Eskom winter outlook (April 2026), RICA Act, Vodacom, MTN, Telkom, Cell C, Vumatel, Openserve, Frogfoot, US Department of State. Related: South Africa visa and residency · South Africa hub.