curl --request GET \
  --url https://api.wavix.com/v3/10dlc/brands/{brand_id}/campaigns/{campaign_id}/numbers

{
  "brand_id": "B9FXYNH",
  "campaign_id": "CSJ4TV0",
  "numbers": [
    {
      "number": "17029641104",
      "status": "APPROVED"
    }
  ]
}