Why doesn't changing my IP fix Error 1005?

Because 1005 bans an entire ASN, not one address. An ASN is the whole network block belonging to your ISP, cloud host, or VPN provider — thousands to millions of IPs. Reconnecting your VPN to the same provider or spinning up a new server in the same cloud gives you a different IP inside the *same* ASN, which is still banned. Only a genuinely different network (a different ASN) gets through.

How is 1005 different from 1006/1007/1008?

1006, 1007, and 1008 ban your specific IP address. 1005 bans the autonomous system your IP sits in, which is far broader. 1009 is a country ban and 1010 is a browser-signature ban. They look alike on the page, but only 1005 is keyed to your network operator.

I'm a normal home user getting 1005. What now?

That's unusual and worth reporting. Residential ISP ASNs rarely get banned wholesale; if yours has, it's likely collateral damage from abuse on the same network, or an overly broad rule. Note the Ray ID and time from the error page and contact the site owner — only they can lift it. Cloudflare support can't override a customer's own block.

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Error 1005 Access Denied: ASN Banned (Cloudflare)

Error 1005 means a site banned your ASN, not just your IP — switching IPs won't help. Find your ASN and why it's flagged. Free instant check, no sign-up.

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Problem

Cloudflare serves an Error 1005 page with the text “Access Denied: The owner of this website has banned the autonomous system number (ASN) your IP address is in.” The HTTP status is 403.

Symptoms

The block is immediate and total — every page on the site returns 1005, no challenge or CAPTCHA.
Changing your IP doesn’t help. A new VPN session with the same provider, or a fresh cloud instance in the same region, still gets blocked.
Switching to a completely different network does work — mobile data instead of Wi-Fi, or a home connection instead of a datacenter.
It commonly hits traffic from cloud providers, VPNs, proxies, and scraping infrastructure; occasionally a mobile carrier or corporate egress.

What Error 1005 Actually Means

An ASN — autonomous system number — is the identifier for a whole network operated by one organization: an ISP, a cloud host like a major IaaS provider, a mobile carrier, a VPN company, a large enterprise. Every IP address belongs to exactly one ASN. Error 1005 means the site owner (or, less often, Cloudflare’s own reputation system) has banned that entire number — every address the operator controls, in one stroke.

That’s the distinction that matters, because Cloudflare’s other block pages look nearly identical and need different fixes:

1005 — your whole ASN is banned. The block follows your network operator, not your address.
1006 / 1007 / 1008 — your specific IP address is banned.
1009 — your country or region is banned (IP mapped to geo).
1010 — your browser’s signature is banned (headers, user-agent, TLS fingerprint), independent of IP.
1015 / 1020 — you’re rate limited, or hit by a custom WAF rule — usually temporary or path-specific.

Owners ban an ASN when the whole network has a bad reputation. Datacenter and hosting ASNs are the usual targets: the vast majority of legitimate traffic comes from residential and mobile networks, so a site fighting scrapers or credential-stuffing can block entire cloud and VPN ASNs with little collateral damage — to their audience. If you’re browsing through a VPN, a cloud desktop, or a corporate proxy that egresses via a hosting provider, you are the collateral damage. The site never banned you; it banned the neighborhood you’re routing through.

So the fix is rarely “get a new IP.” It’s “get onto a different ASN” — or, if you’re on a normal residential network that shouldn’t be banned, treat it as an over-broad rule and tell the owner.

Diagnose with DechoNet

ASN Lookup to find which ASN your current IP belongs to and what kind of operator it is. If it comes back as a cloud, hosting, or VPN provider, that alone explains the 1005 — you’re on exactly the kind of network owners block.
IP Check to see how your address is classified (VPN / proxy / datacenter vs residential), corroborating whether you’re on the type of network that draws ASN bans.
HTTP Check to confirm the failing response really is a Cloudflare-served 403 carrying error 1005, and not a similar-looking 1006 or 1010 you’re misreading.

Resolution Checklist

Read the exact number on the page. 1005 (ASN), 1006–1008 (IP), 1009 (country), and 1010 (browser) look alike but don’t share a fix.
Look up your ASN. If it’s a datacenter, hosting, or VPN operator, the ban is expected — that’s the network being blocked, not you personally.
If you’re a visitor on a VPN/cloud/proxy: connect through an ordinary residential or mobile network instead. A different ASN is the reliable way through; a new IP on the same one is not.
If you’re a visitor on a normal home/mobile network: don’t try to route around it. Note the Ray ID and time and contact the site owner — a residential ASN ban is usually a mistake only they can correct.
If you own the site: open Security Events and find the rule matching the ASN (an IP Access Rule scoped to the AS number, or a WAF rule on ip.geoip.asnum). Confirm it isn’t catching real users before you widen or keep it.

When to Escalate

If you own the site and legitimate visitors are hitting 1005, an ASN ban is a blunt instrument — narrow it to specific IP ranges, pair it with a challenge instead of a block, or scope it to sensitive paths only. Use the Ray IDs from complaints to trace exactly which rule fired.
If you run sanctioned automation against a site you don’t control and its owner has banned your cloud ASN, the answer is an agreement with the owner (an allowlisted ASN, an API path, a documented source range) — not swapping providers to dodge the block, which just moves the problem to the next ASN.