The following are the Certificate Authorities registered with the Austin Active Directory
| Server | CA Name | Hash | Status | Purpose | Notes |
|---|---|---|---|---|---|
| ca-ext-p01 | Austin External 2015 | SHA256 | Production | External SHA2 certificates | |
| ca02 | austin.utexas.edu External Certificate Authority | SHA1 | Expired | External certificates | |
| ca03 | Austin Root Certificate Authority | SHA1 | Production | Root certificate only | |
| ca04 | Austin Subordinate Certificate Authority | SHA1 | Production | Issuer for normal certificates | |
| ca05 | Austin Disk Certificate Authority | SHA1 | Production | Issuer for disk IPsec certificates | |
| ca06 | Austin External Certificate Authority | SHA1 | Production | External certificates |