Azure Communication Services: German local PSTN numbers unavailable after Pay-As-You-Go upgrade

For German local Azure Communication Services PSTN numbers, these are the supported and documented requirements and acquisition steps:

1. Eligibility requirements
   • A paid Azure subscription is required. Phone numbers cannot be acquired on trial accounts or by Azure free credits.
   • Phone number availability depends on the Azure subscription billing location.
   • For Germany, Local and Toll-Free numbers are eligible on these Azure agreement types: Modern Customer Agreement (Field and Customer Led), Modern Partner Agreement (CSP), Enterprise Agreement, and Pay-As-You-Go.
   • In Germany, Local numbers support Make Calls and Receive Calls as General Availability. Send SMS and Receive SMS are not available for German local numbers.
2. Current acquisition path
   • In the Azure portal, open the Communication Services resource.
   • In the left menu, select Phone numbers.
   • Select Get to launch the purchase wizard.
   • Choose Germany as the country/region.
   • Select the number type as Local.
   • Search for available numbers.
3. Special ordering / enablement path
   • Some countries/regions and bulk number orders require a special order process.
   • If special ordering is required, the documented path is:
     1. Select Request a Special Order in the Phone Numbers section.
     2. Open a new case at new case.
     3. Select Azure Communication Service as the customer profile.
     4. Choose the required Country/Region.
     5. Select New TN Acquisition as the case type.
     6. Submit the request with the required details.
4. About empty search results with HTTP 200
   • The documented material does not list a separate public verification or account-enablement step for Germany beyond subscription eligibility and billing-location eligibility.
   • The documentation does state that for high-volume orders or when the desired phone number is unavailable, further assistance is required through the special-order path.
   • Since the subscription is already Pay-As-You-Go and the resource is active, an empty result can still align with either number unavailability or country/region ordering restrictions that require the special-order flow.
5. What is documented for Germany specifically
   • Germany has a dedicated phone number management page that confirms availability, eligibility, and restrictions for German numbers.
   • That page documents subscription eligibility and capabilities, but it does not provide an additional public list of mandatory documents or identity-verification steps for German local number acquisition in the retrieved material.

References:

• Phone number management for Germany
• Phone number types in Azure Communication Services
• Quickstart: Get and manage phone numbers (platform-azp-new)