Send us a GET request with your key.
curl -X GET https://v1.api19.com/dids/cart/list \
-d 'key=your-api-key'
curl https://v1.api19.com/dids/cart/list&key=apitoken
{"status":"ok",
"numbers":
{"number":3038822211, "ratecenter":"DENVER", "STATE":"CO"}
}