# A new mobile service. A familiar number.

Let subscribers bring an eligible mobile number into their plan. Turn account requirements, approvals and the network move into a journey they can follow, with a clear next action when something needs attention.

## Check the number and the account.

Confirm that the selected service supports porting from the donor provider. Collect the account holder’s authorization and the precise information required for that market and number.

### Match the donor’s records

A name, account number or transfer credential can be required. Explain where the subscriber obtains each item and check it against the requested porting path.

### Keep the current service active

Follow the agreed porting procedure before canceling the old plan. Ending the donor service prematurely can interfere with the number move.

## Make the port a visible part of onboarding.

Show the request state and any confirmed scheduling information. Keep the subscriber informed about the next action without turning an estimate into a guaranteed completion time.

### A declined request can be recoverable

Explain the reported reason, such as an account mismatch or transfer protection. Let the entitled subscriber correct the required details before resubmission.

### Prepare the receiving service

Connect the new plan, profile and inbound service to the intended number. The profile installation and the number transfer are related steps with distinct outcomes.

## Verify the service people rely on.

Check incoming and outgoing calls, messages and data according to the plan. Confirm the number shown in the account and help the subscriber understand the final billing relationship with the previous provider.

### Test the important paths

Use representative calls and messages and verify the services the subscriber actually bought. A completed port status is the start of that operational check.

### Make leaving understandable too

Provide the requirements for an eligible future port-out. Separate moving the number, ending service and settling the final bill so the subscriber knows what remains.

## Build with the right reference

- [Mobile number porting guide](/docs/guides/esim/number-porting): Follow the setup, requirements and operational checks.
- [Get started with eSIM](/esim-api/getting-started): Choose an offer and follow a controlled purchase-to-first-use journey.
- [Plans and pricing](/pricing/esim): Review coverage, allowance, validity and the published terms.

## Mobile number porting questions

### Can every number be ported?

Eligibility depends on the country, number type and providers involved. Confirm the supported porting path before accepting a customer commitment.

### Should subscribers cancel their old plan first?

Follow the porting procedure for the service. Keeping the donor line active is commonly necessary; an early cancellation can prevent a successful move.

### How long does a port take?

Timing depends on the market, donor provider, required information and the request outcome. Use confirmed scheduling information and communicate changes rather than promising a universal duration.

### Is mobile number porting the same as buying an SMS sender?

No. A mobile subscription and an application messaging sender have different purposes and eligibility. Use the mobile plan’s porting process for a subscriber’s phone service.

## Connect the complete service

- [Mobile plans](/esim-api/features/mobile-plans): Offer recurring data, calls and SMS with renewals and number portability.
- [eSIM installation](/esim-api/features/installation): Help customers install on their device and get connected with clear guidance.
- [Connectivity operations](/esim-api/features/operations): Bring orders, billing, network status and support into one service history.
- [eSIM resource library](/esim-api/resources): Browse practical guides, explained answers and technical references.

## Évoluez sans perdre le contrôle.

Organisez vos équipes en espaces de travail, contrôlez l'accès à l'API et tracez les modifications via les journaux d'audit.

[Espaces de travail](/docs/guides/workspaces)[Rôles d’équipe](/docs/guides/users-teams-roles)[Authentification API](/docs/guides/authentication)
[Découvrez Enterprise](/enterprise)

## Start with eSIM. Build across channels with Bird.

[Get Started](/dashboard/signup?returnTo=%2Fdashboard%2Fw%2Fesim) · [Contact Sales](/demo?product=esim)

[Email](/email-api) · [SMS](/sms-api) · [WhatsApp](/whatsapp-api) · [Apple Messages](/apple-messages-api) · [Voice](/voice-api)



## Related resources

- [eSIM connectivity guide](/docs/guides/esim/overview) (docs)
- [What is an eSIM?](/explained/esim/what-is-an-esim) (answer)

[Get an implementation brief](/learn/workspace?topic=esim)