curl --request GET \
  --url https://api.openmic.ai/v2/phone-numbers/{phone_number_id} \
  --header 'Authorization: Bearer <token>'

{
  "id": "<string>",
  "phone_number": "<string>",
  "name": "<string>",
  "inbound_agent_uid": "<string>",
  "outbound_agent_uid": "<string>",
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z"
}