Please Note: Your numbers must remain active with your previous carrier in order to be ported into Aircall. If you cancel your account with your previous carrier before the numbers have been ported, we will be unable to proceed with the porting.

Number Types & Porting Availability

Number Type


Is Porting Available?

Prefix Examples
(+33 “1” - Paris, +33 “4” - Lyon, Etc..)

Geographic numbers are local numbers that are assigned to a specific geographic region.


Prefix Examples
(+33 “6”, +33 “7”)

Mobile numbers are assigned by country and in specific ranges so that they can be quickly identified apart from local numbers.


Toll Free
Prefix Examples
(+33 “805”)

Toll-free numbers are numbers that are free of charge to call from the caller's side.


Prefix Examples
+33 “9”

National numbers are phone numbers that are not region-specific and are designed to be reachable from an entire country at the same cost.



NDI (Numéro de désignation d’installation) - This is single number often referred to as the “Head Number” or “Billing Number”. The NDI is usually associated to other numbers referred to as SDA’s or secondary numbers. The NDI will also usually be listed on the invoice with your current carrier.

SDA (Sélection Directe à l’arrivée) - These are additional numbers often referred to as secondary numbers that are attached to the NDI. They are generally not specified on the invoice, however, the quantity of SDAs will normally be noted.

The NDI and SDA are relevant when porting Geographic/Local French Numbers. It’s recommended to confirm with your current provider the NDI/SDA classifications of your numbers before submitting a porting request. Confirming your NDI and associated SDA before porting will assist our team with ensuring your porting request is submitted correctly on the first attempt.

Types of Porting Requests




(Full port)


Porting the NDI (head number) and all the attached SDAs

Partielle simple
(Partial simple port)

SDA (or a selection)

Porting one or a selection of numbers, the NDI (head number) is not included

Partielle complexe
(Partial complex port)

NDI + one of a selection of SDA

I would like to port only my NDI, or my NDI and a selection (not all) of my SDAs

I must therefore designate a new NDI for my operator, that is chosen among the SDAs that I do not wish to port.

RIO Codes

The term RIO stands for "relevé d'identité opérateur" (statement of operator identity). This is a string of numbers and letters required to validate single line porting requests and mobile porting requests. It’s recommended to contact your current provider and confirm the RIO codes associated to your numbers before submitting a porting request.

Regulatory Requirements

French numbers on Aircall’s network have regulatory requirements that need to be met before they can be fully activated and used. You can read more about why these requirements are necessary here.

It’s recommended to have these required regulatory documents available before submitting a porting request. You can review the requirements for France here and a brief summary below.

⚠️ Please note you will need to have a “Local” address that matches the area code of your number if you plan to port Geographic numbers.

Regulatory Summary

Required Information

Acceptable Documents

For Individual End-User: Proof of Identity & Address

  • Official Passport or National Identity Card of individual

  • Utility bill no older than 3 months showing local address. Must be addresses to individual provided on Passport or ID

For Business End-Users: Extract from the commercial register

  • Official local Business registration certificate listing local French address(KBIS)

Mobile numbers requirements for Business End-Users will require a KBIS and a copy of the passport or Identity Card of the Authorized Representative listed on the KBIS.

Submitting a Porting Request

If you would like to port your existing phone number to your Aircall account, please be prepared to provide the following information:

  • The number you would like to port-in

  • Your current carrier

    * If your current carrier is another VoIP service, please reach out to ask them who is the true underlying carrier/owner of the number(s)

  • Full name of the owner of the number

  • Service address on file with current carrier

  • A copy of your most recent invoice

The Aircall Porting Team will guide you through the rest of the process. You can submit your porting request to our porting team here.

Additional Help Articles

You can submit your porting request to our porting team here.

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