104.27.0.0/16
Where this subnet is, who announces it, and what our databases hold in it. Below, every /24 inside it; open one for its addresses.
Where it is
Addresses IP Geolocation places in each country, as a share of those it places.
- United States65,536 · 100.00%
Who announces it
Each /24 counted for the AS announcing most of it, as a share of the routable addresses.
- AS13335Cloudflare, Inc.36,864 · 56.25%
What the databases see
Addresses each address-keyed database holds in this block, as a share of its routable addresses. Counts overlap: one address can be in several.
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- Hosting IP36,86456.25%
- CDN IP65,536100.00%
- None here
- None here
- Anycast IP36,86456.25%
- None here
- None here
- None here
- Web IP36,86456.25%
- None here
Announced prefixes
Every prefix inside this block that BGP Route saw announced, with its origin and RPKI status.
| PREFIX | ORIGIN | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|---|
| 104.27.0.0/20 | AS13335Cloudflare, Inc. | United States | Valid | 17 | 2026-10-02 |
| 104.27.16.0/20 | AS13335Cloudflare, Inc. | United States | Valid | 17 | 2026-10-02 |
| 104.27.32.0/20 | AS13335Cloudflare, Inc. | United States | Valid | 17 | 2026-10-02 |
| 104.27.48.0/20 | AS13335Cloudflare, Inc. | United States | Valid | 17 | 2026-10-02 |
| 104.27.64.0/20 | AS13335Cloudflare, Inc. | United States | Valid | 17 | 2026-10-02 |
| 104.27.80.0/20 | AS13335Cloudflare, Inc. | United States | Valid | 17 | 2026-10-02 |
| 104.27.96.0/20 | AS13335Cloudflare, Inc. | United States | Valid | 17 | 2026-10-02 |
| 104.27.112.0/20 | AS13335Cloudflare, Inc. | United States | Valid | 17 | 2026-10-02 |
| 104.27.192.0/20 | AS13335Cloudflare, Inc. | United States | Valid | 17 | 2026-10-02 |
Every /24 inside it
Test the real build first.
An evaluation license puts a full current build in your hands, with no sampling, so you can measure it against your own traffic before anyone talks about terms.