While all information is copied during a migration to make authentication and data flow unchanged, it is necessary to retarget each device and gateway to the new ClearBlade IoT Core offering. Information regarding that change is here.
us-central1-mqtt.clearblade.com
europe-west1-mqtt.clearblade.com
asia-east1-mqtt.clearblade.com
ports 443 and 8883
https://us-central1.clearblade.com
https://europe-west1.clearblade.com
https://asia-east1.clearblade.com
port 443
The ClearBlade IoT Core environments leverage DigiCert root certificates for SSL / TLS termination. The current root CA from DigiCert can be downloaded here.
ClearBlade is providing SDKs for drop-in replacement.