Hey, Thanks for the detailed questions love how you laid everything out clearly. I can help you sort this properly and give you a clear, step-by-step breakdown on what happens after the 10 free numbers limit, whether API-only provisioning is possible or if support enablement is required, how to check US area code availability via API (or best workaround if no direct endpoint), why you're getting 201 without a number sometimes. Whether numberDesiredAreaCode is effectively required What to do when status=active but no number is attached (wait vs retry vs recreate) I’ve handled similar Vapi provisioning flows before, so I can walk you through the clean, reliable setup approach. Happy to help — this would be a paid consult. DM me and we’ll sort it out quickly