The FCC published its annual report on state 911 fees
The report finds that in 2019, states and territories collected more than $3 billion in 911 fees, and more than $200 million of that funding was diverted for uses other than 911.
You can look up your individual state's 911 report here
In case you are interested in Tennessee's 911 service resiliancy:
The project, referred to as NG911, involves utilization of the State’s secure, private, outsourced Multiprotocol Label Switching (“MPLS”) network called “NetTN,” provided by AT&T and managed by Strategic Technology Solutions (“STS”) in the Tennessee Department of Finance and Administration. The new network improves redundancy, reliability, and 911 call delivery. It enhances interoperability and increases the ease of
communication between ECDs, allowing immediate transfer of 911 calls, caller information, and other data on a statewide level. NG911 will also provide alternate paths to process emergency calls in the event of an outage, providing lifesaving capabilities in the event of an emergency that would have been unachievable on the outdated analog network.
In fiscal year 2019, the TECB spent $11,224,726 million implementing and maintaining the NG911 project: $6,974,790 to integrate with and adapt the Net TN system for NG911 purposes; $780,966 for non-recurring start-up costs of the statewide hosted controller or Call Handling as a Service program; $3,451,369 to maintain the twenty-four hour network operations center to assist PSAPs with technical issues; and $17,600 for Esri GIS software licensing.