> For the complete documentation index, see [llms.txt](https://cortex-docs.paloaltonetworks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cortex-docs.paloaltonetworks.com/cortex-xpanse/reference/scanning-activity.md). # Scanning activity Cortex Xpanse scanning activity on listed ranges is CFAA-compliant Cortex Xpanse at Palo Alto Networks takes an outside-in approach to network security and asset management. We continuously scan the global internet to monitor our customers' internet-facing attack surface and discover emerging threats. Our scanning activity on the ranges below is CFAA-compliant. You can mark our ranges as non-malicious in your system so that you stop getting alerts, or configure your firewall to drop traffic from our ranges. ```programlisting 35.203.210.0/23 144.86.173.0/24 147.185.132.0/23 162.216.149.0/24 162.216.150.0/24 172.105.147.0/24 198.235.24.0/24 205.210.31.0/24 216.25.88.0/21 2604:a940:300:5b6:0:0:0:0/64 2604:a940:301:225:0:0:0:0/64 2604:a940:302:118:0:0:0:0/64 ``` If you believe you have discovered abuse associated with Cortex Xpanse scans, please contact us at . --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation by asking a question. Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters: ``` GET https://cortex-docs.paloaltonetworks.com/cortex-xpanse/reference/scanning-activity.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.