End-to-end management of authenticated communications

A computer-implemented method for providing end-to-end call authentication, the computer-implemented method comprising:

• receiving, by one or more computing devices, a verification request from a called party device regarding a call request received by the called party device via a carrier network, the call request reflecting a call initiated from a calling party device to the called party device via an internet communication path different from the carrier network;
• in response to receiving the verification request, verifying, by the one or more computing devices, if a token indicative of the call request is currently stored in a call session registry, wherein the call session registry is configured to store tokens indicative of a plurality of active telephone calls and call requests until the respective active calls and call requests are terminated;
• and
• in response to verifying that the token is not currently stored in the call session registry:
• providing a notification to the called party device via the carrier network indicating that a calling party associated with the calling party device is unverified;
• and
• performing a mitigating action with respect to the call initiated from the calling party device.