65,536 routable6 ASes
/16 subnet
209.21.0.0/16
Where this subnet is, who announces it, and what our databases hold in it. Below, every /24 inside it; open one for its addresses.
65,536
routable addresses
65,536
geolocated
1
country
6
announcing ASes
17
announced prefixes
38
anonymous 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.
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.
- VPN IP380.06%
- None here
- None here
- None here
- None here
- None here
- None here
- Hosting IP5,1207.81%
- None here
- Carrier IP32,76850.00%
- None here
- None here
- SSH IP670.10%
- 0.00%
- 0.01%
- Web IP590.09%
- 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 |
|---|---|---|---|---|---|
| 209.21.0.0/18 | AS2914NTT America, Inc. | United States | Valid | 17 | 2026-10-02 |
| 209.21.65.0/24 | AS30477Shorenstein Realty Services | United States | Not found | 17 | 2026-10-02 |
| 209.21.66.0/24 | AS4965Vision Bahn Corp | United States | Not found | 18 | 2026-10-02 |
| 209.21.67.0/24 | AS4965Vision Bahn Corp | United States | Not found | 17 | 2026-10-02 |
| 209.21.68.0/24 | AS4965Vision Bahn Corp | United States | Not found | 17 | 2026-10-02 |
| 209.21.69.0/24 | AS4965Vision Bahn Corp | United States | Not found | 17 | 2026-10-02 |
| 209.21.70.0/24 | AS4965Vision Bahn Corp | United States | Not found | 18 | 2026-10-02 |
| 209.21.76.0/24 | AS4965Vision Bahn Corp | United States | Not found | 18 | 2026-10-02 |
| 209.21.77.0/24 | AS4965Vision Bahn Corp | United States | Not found | 18 | 2026-10-02 |
| 209.21.78.0/24 | AS4965Vision Bahn Corp | United States | Not found | 1 | 2026-10-29 |
| 209.21.79.0/24 | AS4965Vision Bahn Corp | United States | Not found | 1 | 2026-10-29 |
| 209.21.88.0/24 | AS4965Vision Bahn Corp | United States | Not found | 18 | 2026-10-02 |
| 209.21.89.0/24 | AS4965Vision Bahn Corp | United States | Not found | 18 | 2026-10-02 |
| 209.21.91.0/24 | AS4965Vision Bahn Corp | United States | Not found | 18 | 2026-10-02 |
| 209.21.96.0/20 | AS16509Amazon.com, Inc. | United States | Valid | 17 | 2026-10-02 |
| 209.21.112.0/20 | AS22163Texas A&M University System Health Science Center | United States | Not found | 19 | 2026-10-02 |
| 209.21.128.0/17 | AS2828Verizon Business | United States | Not found | 17 | 2026-10-02 |
Every /24 inside it
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