Cloudflare: Error 1005: ASN banned
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Error 1005: Access Denied: Autonomous System Number (ASN) bannedWhat it means
Error 1005 means the site owner has banned the autonomous system number (ASN) your IP belongs to. An ASN identifies a network operator, such as an ISP, a cloud provider or a hosting company, so the block covers every IP that network announces, not just yours.
This is one of the most common Cloudflare errors for automation, because site owners often block the ASNs of large cloud and hosting providers to cut down on bot traffic. A job running on a cloud virtual machine, a serverless function or a CI runner can get 1005 while the same request from a home connection succeeds.
For the site owner, the rule is an IP Access rule or custom rule matching on ASN.
What it looks like
Error 1005
Ray ID: 8a1b2c3d4e5f6789
Access denied: Autonomous System Number (ASN) bannedWhy it happens
- The owner blocks the ASN of your cloud, hosting or VPN provider.
- Your ISP's ASN was blocked because of abuse from other customers.
- A corporate network egresses through a provider the site blocks.
How to fix it
- Visitors: send the site owner a screenshot of the 1005 page, as Cloudflare recommends.
- Identify your ASN (for example from /cdn-cgi/trace or an IP lookup) so the owner can see what was blocked.
- Ask the owner for an allowlist entry or API access for your integration.
- Do not switch networks specifically to get around the block.
- Site owners: consider a challenge or a narrower rule instead of blocking an entire ASN, and add skip rules for known partners.
How to stop it recurring
Integrators: before running automation from cloud infrastructure, confirm the target allows it, and arrange access in advance. Site owners: ASN blocks are blunt; combine them with allowlists for legitimate partners and a custom response that explains how to request access.
Official documentation: developers.cloudflare.com/support/troubleshooting/http-status-codes/cloudflare-1xxx-errors/error-1005. See all Cloudflare error messages.
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Quick answers
What does "Error 1005: ASN banned" mean in Cloudflare?
Error 1005 means the site owner has banned the autonomous system number (ASN) your IP belongs to. An ASN identifies a network operator, such as an ISP, a cloud provider or a hosting company, so the block covers every IP that network announces, not just yours.
How do I fix "Error 1005: ASN banned"?
1. Visitors: send the site owner a screenshot of the 1005 page, as Cloudflare recommends. 2. Identify your ASN (for example from /cdn-cgi/trace or an IP lookup) so the owner can see what was blocked. 3. Ask the owner for an allowlist entry or API access for your integration. 4. Do not switch networks specifically to get around the block. 5. Site owners: consider a challenge or a narrower rule instead of blocking an entire ASN, and add skip rules for known partners.
Retries and timeouts without writing the loop
Autonoly's HTTP Request node and browser steps have per-node retries, timeouts and continue-on-fail, so a transient 429 or 503 can back off instead of failing the run. It has no proxies or IP rotation: if a site blocks automated traffic, that block applies to Autonoly too.
Also see Error handling in workflows.