Belong SIM: what the plans cost, how roaming works and which network it uses

A note on what we could read

Belong's website was offline when we tried it on 10 November 2026; every page, including its plans and roaming pages, showed a maintenance notice. The plan details below come from Belong's Mobile Critical Information Summary (version 5.6), which is hosted separately and did load. The roaming pack details come from Belong's own roaming and terms pages as quoted in search results, because we could not open them directly. We say where each figure comes from, and we would check Belong's site again before buying.

This is desk research from Belong's own documents. We have not bought or tested a Belong SIM.

What Belong mobile plans are available?

Belong's summary lists five SIM-only plans, all on one-month terms with no lock-in. National standard calls, texts and voicemail are included on all of them.

If you use your whole allowance, Belong does not charge you more: it slows you to 1Mbps until the allowance resets. You can buy a 5GB top-up for $10, up to 40 a month. Unused data is banked with no upper limit and kept if you change plan, and you can gift data to other Belong customers up to five times a month. The summary does not list any current promotions, as it excludes special offers.

Is Belong prepaid?

No, although people often search for Belong prepaid plans. Belong's summary describes its plans as post-paid on month-to-month contracts. You pay by direct debit from a Visa, Mastercard or PayPal account on roughly the same day each month, starting from the day you activate. Belong says it does not accept prepaid cards. You can cancel from your Belong account; ask at least 24 hours before your next payment to avoid being charged for another month.

How do you get and activate a Belong SIM?

You need a Belong account, which you use to sign up and manage the service through the app or website. Belong sends a SIM free to an Australian address when you order online. You can also buy a SIM in store; Belong says what you pay in store is added as credit when you activate. The summary does not name the stores, so we could not confirm the Woolworths or Coles listings people search for. Your first payment is taken when you activate the SIM.

We could not confirm Belong eSIM support from the documents we could open. Belong's site was the place to check, and it was down.

Which network does Belong use?

Belong is a division of Telstra, and its summary says the service runs over parts of the Telstra Mobile Network, which it also calls the Telstra wholesale mobile network. You need an unlocked 4G or 5G phone that supports 4G on 700MHz (band 28), Voice over LTE and VoLTE emergency calling. Belong warns that some older and overseas-bought phones may not work. For the widest coverage it recommends a phone that uses Telstra's 4G 700MHz and 5G 3.6GHz frequencies. Our Telstra guide covers the parent network.

Does Belong have international roaming?

Yes, as a one-off pack added to an active Belong mobile service. Belong's summary confirms the pack exists and that it is charged at the time you buy it. The pack details below are from Belong's roaming and terms pages as quoted in search results:

According to those pages, there are no excess or pay-as-you-go charges on the pack, data-only plans cannot add it, and you need an eligible service without an overdue bill. Belong also said it was trialling roaming in Bulgaria, Estonia, Luxembourg and Romania, where service may work but is not guaranteed. We could not open the destination list.

When is a travel eSIM cheaper than Belong roaming?

For data, nearly always. Belong's pack works out at $10 a gigabyte. Our verified prices, read on each seller's site in August 2026, were:

Belong's pack makes sense when you need your Australian number for calls: 150 minutes is a generous allowance for a fortnight. A practical setup is a travel eSIM for data, with the Belong line kept on for calls and data roaming switched off. Our data roaming guide explains the setting, our New Zealand guide covers the most common short trip, and the cheapest eSIM table ranks plans by cost per gigabyte.

Who does Belong suit?

Belong suits someone in Australia who wants Telstra-network coverage at a lower price, no lock-in, and data that keeps banking. It is less suited to a visitor, because it is post-paid, takes a card or PayPal by direct debit and does not accept prepaid cards. Visitors should compare the options on our cheap SIM card for Australia page.