| OID | Name | Description |
| 1.3.6.1.4.1.6422.1 |
bt-isc |
Root Certification Authority for BT Infrastructure for Secure Communications (ISC), the top level infrastructure that delivers … |
| 1.3.6.1.4.1.6422.1.1 |
isc-root |
BT ISC root Certificate Policy (CP)/Certificate Practice Statement (CPS) |
| 1.3.6.1.4.1.6422.2.1 |
cp-cps |
Radianz Messaging issuing Certification Authority (CA) Certificate Policy (CP)/Certification Practice Statement (CPS) |
| 1.3.6.1.4.1.6422.2 |
bt |
Issuing Certification Authority (CA) of Radianz Messaging Service |
| 1.3.6.1.4.1.6422 |
6422 |
British Telecommunications PLC |