Hi Over The Planet •,
Thanks for reaching out to Microsoft Q&A.
To acquire a phone number, you need to be on a paid Azure subscription. Phone numbers can't be acquired on trial accounts or by Azure free credits.
Phone number availability is currently restricted to Azure subscriptions that have a billing address in supported regions. To see all the supported billing locations, visit the subscription eligibility page.
Please check more details here on this page- https://learn.microsoft.com/en-us/azure/communication-services/concepts/telephony/plan-solution
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