Bitbucket — Atlassian IP ranges (JSON)
Use the Atlassian JSON feed and filter entries whose product list includes “bitbucket” (ingress/egress per Atlassian’s model).
Bitbucket Cloud
Atlassian publishes a JSON feed of cloud IP ranges; filter for the Bitbucket product in ip-ranges.atlassian.com alongside Bitbucket firewall documentation.
Autonomous systems
Network background
Bitbucket Cloud runs on Atlassian’s commercial cloud perimeter; many ranges overlap other Atlassian products. For Pipelines egress, Atlassian also documents AWS EC2/S3 patterns and optional atlassian-ip-ranges—see Bitbucket’s firewall article.
Third-party hosting & clouds
Amazon Web Services (typical)
AS16509
Illustrative—ip-ranges.atlassian.com and Atlassian docs are authoritative.
Published ranges
Official documentation and feeds for each product—open the links for current ranges and verification guidance.