Does a Travel eSIM Give You a Phone Number in Australia or New Zealand?

Usually, a data-only travel eSIM does not give you a phone number. ANZROAM’s Australia and New Zealand eSIMs provide mobile data only. They do not include an Australian +61 number, a New Zealand +64 number, standard mobile calls or SMS.

That does not automatically mean losing your usual number. On a compatible dual-SIM phone, you can normally use the travel eSIM for mobile data while keeping your home line available for calls and messages. The important part is understanding that these are two separate services, with separate settings and possible charges.

What “data-only” means

A data-only eSIM gives apps an internet connection. You can use maps, email, web browsing, messaging apps and internet calling, subject to your plan allowance and network availability.

It does not turn those apps into standard mobile calls or SMS. If a hotel, employer or local contact must reach you through an ordinary Australian or New Zealand phone number, a local mobile service that explicitly includes voice and SMS may suit you better.

For many short trips, a local number is not essential. Bookings, navigation and contact with family can often be handled through data-based apps. The right choice depends on who needs to contact you and how.

Can you keep your home number active?

Yes, if your phone and home carrier support the required dual-SIM setup.

Use the two lines for different jobs:

Keeping the home line enabled does not make its roaming free. Your carrier decides whether receiving or making calls, sending messages, receiving SMS or simply using service overseas attracts a charge. Check those terms before departure.

Also disable automatic mobile-data switching if your phone offers it and you do not want the home line to take over data. Menu names vary by device and software version.

What about bank codes and two-factor authentication?

SMS verification codes still go to the phone number registered with the bank or service. A travel eSIM cannot receive those codes when it has no phone number.

To keep receiving codes on your usual number, the home line must remain enabled and able to register on a supported overseas network. Delivery is not guaranteed: your carrier, the sending service and the type of SMS can all affect whether a message arrives abroad.

Before travelling:

1. Check your home carrier’s roaming and SMS terms.
2. Test a non-SMS backup such as an authenticator app or recovery code where the service supports one.
3. Confirm that important accounts have a current recovery method.
4. Do not assume a data-only eSIM replaces your home line for verification messages.

This preparation matters more than the eSIM brand. It reduces the risk of discovering at checkout, at the airport or during a bank login that SMS is your only recovery path.

How to divide calls, messages and data on your phone

The exact screens vary, but the goal is consistent:

• set the travel eSIM as the mobile-data line;
• leave the home line selected for ordinary calls and SMS if you need them;
• turn off mobile data roaming on the home line;
• follow ANZROAM’s instructions for the travel line, including its required roaming setting;
• confirm which line is selected before making an ordinary mobile call or sending an SMS.

Apple documents using a travel eSIM as a secondary line while retaining a home line. Google Pixel and Samsung documentation likewise allow supported dual-SIM devices to assign calls, texts and mobile data to different lines. Capability still varies by phone model, carrier and region, so check your exact device rather than relying on the model family alone.

If you are travelling through both countries, read Using Separate Australia and New Zealand eSIMs on One Trip. It explains how to manage the home line plus the two country eSIMs without trying to keep every travel line active at once.

Will WhatsApp or other messaging apps change number?

Installing a travel eSIM does not by itself change the number registered to an existing messaging account. The app can use the travel eSIM’s data while the account remains associated with its current number.

If an app asks whether to register a new number, stop and read the prompt. A data-line change and an account-number change are different actions.

When should you choose a local mobile service instead?

Choose a local service that explicitly includes a phone number, calls or SMS when any of these are essential:

• local contacts need to call an Australian or New Zealand number;
• you must make frequent ordinary mobile calls rather than app-based calls;
• a service you use will not accept an overseas number;
• your home carrier cannot keep your usual line reachable on acceptable terms.

Choose a data-only travel eSIM when your priority is mobile internet and you are comfortable using data-based apps, while managing your home line separately for any calls, SMS or verification codes.

Before you buy

First, confirm that your phone is carrier-unlocked and eSIM-compatible. Then decide whether data-only service meets your communication needs.

• View Australia eSIM plans
• View New Zealand eSIM plans
• Check eSIM compatibility before travel
• Read the eSIM FAQ

The simple rule is this: use the travel eSIM for data, keep your home line only for the services you still need, and arrange a local number separately if ordinary local calls or SMS are part of the trip.

Sources and verification

Verified 10 October 2026:

• ANZROAM Australia eSIM and Store API product 132: data only; no Australian phone number, standard calls or SMS.
• ANZROAM New Zealand eSIM and Store API product 407: data only; no New Zealand phone number, standard calls or SMS.
• Apple: Use eSIM while travelling internationally with your iPhone: using a home line and travel eSIM together, with the travel line selected for data.
• Google Pixel: How to use dual SIMs: supported devices can assign calls, texts and data to different SIMs.
• Samsung: How to use or manage dual SIM cards: supported Galaxy devices can select different SIMs for calls, messages and mobile data.