SSL Certificates

infoIf you manually store our SSL or Intermediate SSL certificates in a trust store, any future certificate changes will be communicated at least five weeks in advance via a scheduled maintenance post on our status page. We recommend subscribing to our status page to ensure you receive these notifications.

Current SSL Certificate

Note: we recommend using Intermediate CA certificates in your Trust Store

The CURRENT SSL Cert for *.sms.optus.com.au (made active on 2026-02-27) is as follows (in PEM format):

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Additional certificate info:

  • Serial Number: 0b:46:ad:6a:f5:93:85:aa:7e:8d:ec:a4:15:93:48:5d
  • Validity:
    • Not Before: Feb 26 00:00:00 2026 GMT
    • Not After : Sep 12 23:59:59 2026 GMT

Intermediate CA Certificate

The CURRENT Intermediate CA certificate (made active on 2026-02-27) is as follows (in PEM format):

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Additional certificate info:

  • Serial Number: 0c:f5:bd:06:2b:56:02:f4:7a:b8:50:2c:23:cc:f0:66
  • Validity:
    • Not Before: Mar 30 00:00:00 2021 GMT
    • Not After: Mar 29 23:59:59 2031 GMT