Frequently Asked Questions

All Questions

Use the search box to filter questions, or browse all questions below. For plan-specific questions, refer to the selection matrix.

• What is a QR code in the context of eSIM?

  A QR code (Quick Response code) is a machine-readable barcode that encodes your eSIM activation data. Scanning it with your device camera initiates the eSIM download and installation process.

• What is carrier unlocking?

  Carrier unlocking is the process of removing network restrictions from your device so it can be used with SIM cards or eSIMs from any provider. Most devices sold outright (not on contract) are already unlocked.

• What is an APN?

  APN (Access Point Name) is a gateway between a mobile network and the internet. For most eSIM plans, the APN is configured automatically. If you experience connectivity issues, you may need to set the APN manually.

• What is data throttling?

  Data throttling is the intentional slowing of internet speeds after a certain usage threshold is reached. Some plans offer full-speed data up to a limit, after which speeds are reduced. Check your plan details for throttling policies.

• What is a dual-SIM device?

  A dual-SIM device can hold two SIM profiles simultaneously — typically one physical SIM and one eSIM. This allows you to use two different numbers or data plans on the same device.

• What is roaming?

  Roaming refers to using your mobile device on a network other than your home network, typically when travelling abroad. eSIM plans are designed to provide affordable data without traditional roaming charges.

• What is a validity period?

  The validity period is the time window during which your data plan is active. It begins from the date of first use and ends after the specified number of days, regardless of remaining data.

• What is a top-up?

  A top-up is an additional data purchase that extends your data allowance on an existing active plan. Top-ups are available for select plans and can be purchased through the Airlo Mobile Site portal.

• What is network coverage?

  Network coverage refers to the geographic areas where a mobile network provides service. Our coverage maps show which countries and regions are supported by each plan.

• What is an IMEI number?

  IMEI (International Mobile Equipment Identity) is a unique identifier for your mobile device. Some eSIM providers require your IMEI for activation. You can find your IMEI by dialling *#06# on your device.

Glossary of eSIM Terms

eSIM

Embedded SIM — a digital SIM card built into your device that can be programmed remotely without a physical card swap.

QR Code

A machine-readable code used to download and install an eSIM profile onto your device.

MVNO

Mobile Virtual Network Operator — a company that provides mobile services by leasing capacity from physical network operators.

MNO

Mobile Network Operator — a company that owns and operates physical mobile network infrastructure.

APN

Access Point Name — a gateway setting that connects your device to the internet through a mobile network.

LTE

Long-Term Evolution — the technical standard for 4G mobile networks, offering speeds typically between 10–100 Mbps.

Dual SIM

A device capability allowing two SIM profiles (typically one physical SIM and one eSIM) to be active simultaneously.

Data throttling

The intentional reduction of internet speeds after a data usage threshold is reached.

Validity period

The time window during which a data plan is active, beginning from the date of first use.

Top-up

An additional data purchase that extends the allowance on an existing active plan.