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List the subnets announced by an ASN

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List the subnets announced by an ASN

with Cloudflare

Use Cloudflare: its Cloudflare Accounts API lets you list the subnets announced by an ASN in a single step (GET /accounts/{account_id}/intel/asn/{asn}/subnets). capabilities.work can help you get signed up and connected.

  • Which IP ranges belong to a particular autonomous system?
  • How do I get every subnet an ASN announces?
Say it to your AI assistant
  • List the subnets of ASN {asn} for account {account}.
  • Show the IP prefixes announced by autonomous system {asn}.
For your developer

GET /accounts/{account_id}/intel/asn/{asn}/subnets in Cloudflare Accounts API. Full spec on APIs.io.

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