# Imported Numbers

You can import non-Sinch numbers and enable them for use with Sinch SMS messaging services. For most numbers, the following process outlines the necessary steps:

1. Add numbers using the [Create Batch](/docs/numbers/api-reference/imported-hosting/qualified-numbers/qualifiednumberservice_batchcreatequalifiednumbers) request.
2. Verify ownership of the numbers. This can be done in either the of the following ways:
  - [Request](/docs/numbers/api-reference/imported-hosting/qualified-numbers/qualifiednumberservice_sendvoicechallenge) a voice call to the number and [return](/docs/numbers/api-reference/imported-hosting/qualified-numbers/qualifiednumberservice_verifyvoicechallenge) the OTP code.
  - Email invoices which prove you own the numbers to [orders@sinch.com](mailto:orders@sinch.com).
Ensure the invoices you provide explicitly list the numbers you wish to import.
3. [Text enable](/docs/numbers/api-reference/imported-hosting/qualified-numbers/qualifiednumberservice_textenablenumbers) the qualified numbers. Note that only numbers which have been qualified can be text enabled. The text enablement request will generate a Letter of Authorization (LOA) which will be emailed to the email address you provided in the request. You must e-sign the LOA to text enable the numbers.
4. Once the numbers have been text enabled, they are imported numbers and can be be [provisioned](/docs/numbers/api-reference/imported-hosting/imported-numbers/importnumberservice_listimportednumbers) to SMS plans, linked to campaigns, and used for SMS traffic.


Note:
Only US and Canada numbers can be imported for use with SMS services.

If you have a phone number with a [NetNumber ID already provisioned for Sinch](https://community.sinch.com/t5/10DLC/How-can-you-provision-a-Network-Number-ID-NNID/ta-p/7040), you can import numbers directly and start assigning them to SMS service plans and campaigns.

## Manage in the Dashboard

You can also manage imported and hosted numbers in the Sinch [Build Dashboard](https://dashboard.sinch.com/numbers/hosted-numbers/numbers). The following articles are available:

- [Importing Numbers](https://community.sinch.com/t5/Virtual-Numbers/Importing-Numbers/ta-p/11668)
- [Hosting SMS Numbers for US and Canada](https://community.sinch.com/t5/Virtual-Numbers/Hosting-SMS-Numbers-for-US-and-Canada/ta-p/11649)
- [Managing your Hosted Numbers](https://community.sinch.com/t5/Virtual-Numbers/Managing-your-Hosted-Numbers/ta-p/11656)


## IP addresses for callbacks

To successfully use callbacks with Imported and Hosted Numbers, add the following IP addresses to your allowlist:

- 54.76.19.159
- 54.78.194.39
- 54.155.83.128