This help article is dedicated to providing useful information to consider when preparing to submit a porting request for Spain phone numbers to Aircall.

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, then we will be unable to proceed with the porting.

Number Types & Porting Availability

Number Type


Is Porting Available?

Prefix Examples
(+34 “91” - Madrid, +34 “93” - Barcelona, Etc..)

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


Prefix Examples
(+34 “6”, Etc…)

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
(+34 “800”)

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


Prefix Examples
(+34 “902”)

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


NIF (Numéro de Identificacion Fiscal) & CIF (Certificado de Identificacion Fiscal)

For porting within Spain, the NIF or CIF is required to be listed on the porting request. If the numbers being ported are associated to an individuals account the NIF would need to be provided. If the numbers porting are associated to a company account then the CIF would need to be provided.

  • NIF (Numéro de Identificacion Fiscal) - This is the tax ID for Spanish citizens.

  • CIF (Certificado de Identificacion Fiscal) - This is the tax ID for all Spanish companies. The equivalent of a VAT number.

Customer Service Record (CSR)

A Customer Service Record (CSR) is a document detailing account information for a given phone number or numbers.

You can request a CSR from your current carrier and it should have all required information needed to port your numbers.

Submitting a porting request with a CSR in addition to your most recent invoice will often lead to faster port processing and less risk of rejected porting orders from your current provider.

Number Range Vs Single-Line

When porting Geographic numbers there are two main categories, Single-line or Multiline ports.

  • Single Line Port - A port order for an individual number or group of numbers that are not associated to a number range. Single Line numbers are able to be ported freely and individually as single numbers.

  • Multi-Line Port- A port order used when porting a large batch or range of numbers. On occasion numbers can be grouped together in ranges varying in size from 10 to 100+. If the numbers you are looking to port are part of a larger range or have associated numbers all numbers will need to be ported together.

  • If you are uncertain if your number is a single line or part of a range it’s recommended you contact your current carrier to confirm your number configuration before submitting your porting request.

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

  • NIF or CIF associated to your account

Additional Help Articles

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

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