The Snowflake application endpoint is an ELB (elastic load balancer), which is a CNAME. Amazon Web Services (AWS) controls the IP ranges that we use. Additionally, the S3 repositories accessed by Snowflake customers are also out of our control.
AWS publishes its current IP address ranges:
For Snowflake's certificate revocation list (CRL), Cloudflare publishes its current IP ranges:
Keep in mind both are wide ranges and are subject to change.