65,536 routable3 ASes
/16 subnet
121.144.0.0/16
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
3
announcing ASes
11
announced prefixes
568
anonymous addresses
Where it is
Addresses IP Geolocation places in each country, as a share of those it places.
- South Korea65,536 · 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 IP3020.46%
- 0.43%
- 0.03%
- 0.01%
- None here
- None here
- Hosting IP12,54419.14%
- None here
- None here
- None here
- SSH IP1900.29%
- 0.01%
- 0.23%
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 |
|---|---|---|---|---|---|
| 121.144.140.0/22 | AS9870DONG-EUI UNIVERSITY | South Korea | not found | 18 | 2026-10-02 |
| 121.144.140.0/23 | AS9870DONG-EUI UNIVERSITY | South Korea | not found | 18 | 2026-10-02 |
| 121.144.142.0/23 | AS9870DONG-EUI UNIVERSITY | South Korea | not found | 18 | 2026-10-02 |
| 121.144.144.0/22 | AS9870DONG-EUI UNIVERSITY | South Korea | not found | 18 | 2026-10-02 |
| 121.144.144.0/23 | AS9870DONG-EUI UNIVERSITY | South Korea | not found | 18 | 2026-10-02 |
| 121.144.146.0/23 | AS9870DONG-EUI UNIVERSITY | South Korea | not found | 18 | 2026-10-02 |
| 121.144.148.0/23 | AS9870DONG-EUI UNIVERSITY | South Korea | not found | 18 | 2026-10-02 |
| 121.144.148.0/24 | AS9870DONG-EUI UNIVERSITY | South Korea | not found | 18 | 2026-10-02 |
| 121.144.149.0/24 | AS9870DONG-EUI UNIVERSITY | South Korea | not found | 18 | 2026-10-02 |
| 121.144.249.0/24 | AS18023Korea Maritime and Ocean University | South Korea | not found | 18 | 2026-10-02 |
| 121.144.250.0/24 | AS18023Korea Maritime and Ocean University | South Korea | not found | 18 | 2026-10-02 |
Every /24 inside it
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