Submitting a service request for local number porting
Skype for Business Online will be retired on July 31, 2021. If you haven't upgraded your Skype for Business Online users to Microsoft Teams before that date, they will be automatically scheduled for an assisted upgrade. If you want to upgrade your organization to Teams yourself, we strongly recommend that you begin planning your upgrade path today. Remember that a successful upgrade aligns technical and user readiness, so be sure to leverage our upgrade guidance as you navigate your journey to Teams.
If you need to transfer more than 999 phone numbers (for users, or service numbers including toll or toll-free) to Skype for Business Online, see Manage phone numbers for your organization.
If you need to get more telephone numbers than this, please contact support for business products - Admin Help