API to get usage record returning blank []

I am trying to use this below API but it is not returning anything.
Could you please help me out as it is not showing any error.

Usage records


GET https://na.airvantage.net/api/v1/systems/3c12547b613740adb686271bdc8f097c/usages/records?to=1348836330000

Hi dasp,

It seems that the API does not exist. You can follow the link below to contact AirVantage support: