Country
—
ASN LANDING PAGE
AS19281
QUAD9-AS-1 - Quad9
Last updated · Apr 4, 2026
Total prefixes
6
IPv4 prefixes
5
IPv6 prefixes
1
ASN summary
How to read the scale of AS19281
QUAD9-AS-1 - Quad9 currently shows 6 prefixes and 15 upstream, downstream, or peer relationships. Larger prefix inventories often indicate broader network footprint, but they should still be read together with country and peering context.
When is an ASN page most useful?
ASN landing pages are more useful than a single IP page when you want cloud provider attribution, routing research, infrastructure comparison, or network topology analysis at the organization level.
How should you read the country, organization, and role of AS19281?
QUAD9-AS-1 - Quad9 is currently associated with an unknown region. Country data is only a starting point; the more important signals are the organization name, website, prefix volume, and peering relationships that reveal whether the network behaves like a cloud platform, ISP, CDN, or enterprise backbone.
What should you inspect next after the AS19281 page?
This page is currently showing live ASN data that can be used for peer, prefix, and network scale analysis. The most useful next step is usually to return to a related IP landing page, then compare that concrete address with this ASN profile and with broader topic pages for routing, cloud attribution, or WHOIS ownership analysis.
Search intents this ASN page helps cover
AS19281 ASN lookupAS19281 BGPAS19281 peersAS19281 prefixesAS19281 upstreamsQUAD9-AS-1 - Quad9 ASNpublic DNS ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
Detailed data for this ASN is not available right now.
Peers
Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 147.72.242.0/24 | AS19281 | — |
| 149.112.112.0/24 | AS19281 | — |
| 149.112.149.0/24 | AS19281 | — |
| 199.249.255.0/24 | AS19281 | — |
| 2620:fe::/48 | AS19281 | — |
| 9.9.9.0/24 | AS19281 | — |
Representative IP lookup pages
Related ASN pages
AS36692 · OpenDNS
Useful for extending public DNS operator and ownership analysis into Cisco OpenDNS ASN data.
AS15169 · Google
A strong reference ASN for Google DNS, Google Cloud, and global network footprint analysis.
AS13335 · Cloudflare
Useful for analyzing CDN, Anycast, WAF, and large-scale edge network behavior.
AS134756 · 114DNS
Useful for extending Chinese public DNS and recursive resolver analysis into ASN ownership.
Related lookups and next steps
9.9.9.9 · Quad9
Return to a representative Quad9 IP page to see how the public resolver maps into this ASN.
Quad9 Primary vs Secondary Guide
Useful for comparing Quad9 primary and secondary nodes inside the same ASN footprint.
Quad9 vs Public DNS Guide
Useful for deciding whether this ASN behaves more like security-focused public DNS or a broader resolver network.
Quad9 vs ISP DNS Guide
Useful for comparing Quad9 with local ISP or carrier DNS behavior.
Quad9 vs Enterprise DNS Guide
Useful for comparing Quad9 with more enterprise-oriented DNS services.
Quad9 vs Security DNS Guide
Useful for comparing Quad9 with the broader category of security DNS services across positioning, blocking style, and policy context.
Frequently asked questions about this ASN page
What does AS19281 represent?
AS19281 is an autonomous system number used to identify an independently operated network. The current page associates it with QUAD9-AS-1 - Quad9 in an unknown region, which helps determine whether it behaves like a cloud provider, ISP, CDN, or enterprise backbone.
What are peers, upstreams, and prefixes useful for on the AS19281 page?
They help explain the scale, interconnection depth, and route structure of AS19281. Richer peering and upstream data often indicate broader network reach, but they should still be interpreted together with prefixes and related IP landing pages.
What should you do after reviewing AS19281?
The best next step is usually to return to a concrete IP landing page to see how a specific address maps into AS19281, then continue into cloud, WHOIS, or routing topic pages to understand the network in a broader context.
Related topics
Quad9 vs Public DNS Guide
Compare Quad9 with Google DNS, Cloudflare DNS, and other public resolvers to understand what kind of DNS service 9.9.9.9 represents.
Quad9 Primary vs Secondary Guide
Compare 9.9.9.9 and 149.112.112.112 across ASN ownership, prefixes, security-focused public-DNS context, and resolver role to understand Quad9 primary and secondary nodes.
Quad9 vs ISP DNS Guide
Compare Quad9 with ISP or carrier DNS across security-focused public-DNS context, threat-blocking behavior, resolver role, and network ownership.
Quad9 vs Enterprise DNS Guide
Compare Quad9 with enterprise DNS across security-focused public-resolver role, policy-control scope, organizational ownership, and usage goals.