65,536 routable9 ASes
/16 subnet
121.100.0.0/16
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
6
countries
9
announcing ASes
48
announced prefixes
413
anonymous addresses
Where it is
Addresses IP Geolocation places in each country, as a share of those it places.
- China32,768 · 50.00%
- South Korea16,384 · 25.00%
- Indonesia6,144 · 9.38%
- Japan4,096 · 6.25%
- Singapore4,096 · 6.25%
- Afghanistan2,048 · 3.13%
Who announces it
Each /24 counted for the AS announcing most of it, as a share of the routable addresses.
- AS18334Gyounggidongbu cable tv co., Ltd.14,336 · 21.88%
- AS38258Sony - ASN for Asia Pacific4,096 · 6.25%
- AS10036DLIVE2,048 · 3.13%
- AS18097D.C.N. Corporation2,048 · 3.13%
- AS23776NEC Corporation2,048 · 3.13%
- AS38158PT. Cyberindo Aditama2,048 · 3.13%
- AS38742Afghan Wireless Communication Company2,048 · 3.13%
- AS38761PT. Sakti Putra Mandiri2,048 · 3.13%
- AS9341PT INDONESIA COMNETS PLUS1,536 · 2.34%
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 IP790.12%
- 0.51%
- 0.00%
- 0.03%
- None here
- None here
- None here
- None here
- None here
- Carrier IP2,0483.13%
- None here
- None here
- SSH IP520.08%
- 0.01%
- 0.05%
- Web IP1080.16%
- 0.17%
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 |
|---|---|---|---|---|---|
| 121.100.0.0/21 | AS38158PT. Cyberindo Aditama | Indonesia | Valid | 18 | 2026-10-02 |
| 121.100.0.0/22 | AS38158PT. Cyberindo Aditama | Indonesia | Valid | 18 | 2026-10-02 |
| 121.100.2.0/24 | AS38158PT. Cyberindo Aditama | Indonesia | Valid | 17 | 2026-10-02 |
| 121.100.4.0/22 | AS38158PT. Cyberindo Aditama | Indonesia | Valid | 18 | 2026-10-02 |
| 121.100.6.0/24 | AS38158PT. Cyberindo Aditama | Indonesia | Valid | 17 | 2026-10-02 |
| 121.100.8.0/21 | AS23776NEC Corporation | Japan | Not found | 17 | 2026-10-02 |
| 121.100.16.0/22 | AS9341PT INDONESIA COMNETS PLUS | Indonesia | Not found | 17 | 2026-10-02 |
| 121.100.16.0/24 | AS9341PT INDONESIA COMNETS PLUS | Indonesia | Not found | 17 | 2026-10-02 |
| 121.100.17.0/24 | AS9341PT INDONESIA COMNETS PLUS | Indonesia | Not found | 17 | 2026-10-02 |
| 121.100.18.0/24 | AS9341PT INDONESIA COMNETS PLUS | Indonesia | Not found | 17 | 2026-10-02 |
| 121.100.19.0/24 | AS9341PT INDONESIA COMNETS PLUS | Indonesia | Not found | 17 | 2026-10-02 |
| 121.100.22.0/23 | AS9341PT INDONESIA COMNETS PLUS | Indonesia | Not found | 17 | 2026-10-02 |
| 121.100.22.0/24 | AS9341PT INDONESIA COMNETS PLUS | Indonesia | Not found | 17 | 2026-10-02 |
| 121.100.23.0/24 | AS9341PT INDONESIA COMNETS PLUS | Indonesia | Not found | 17 | 2026-10-02 |
| 121.100.24.0/24 | AS38761PT. Sakti Putra Mandiri | Indonesia | Valid | 17 | 2026-10-02 |
| 121.100.25.0/24 | AS38761PT. Sakti Putra Mandiri | Indonesia | Valid | 17 | 2026-10-02 |
| 121.100.26.0/24 | AS38761PT. Sakti Putra Mandiri | Indonesia | Valid | 17 | 2026-10-02 |
| 121.100.27.0/24 | AS38761PT. Sakti Putra Mandiri | Indonesia | Valid | 17 | 2026-10-02 |
| 121.100.28.0/24 | AS38761PT. Sakti Putra Mandiri | Indonesia | Valid | 17 | 2026-10-02 |
| 121.100.29.0/24 | AS38761PT. Sakti Putra Mandiri | Indonesia | Valid | 17 | 2026-10-02 |
| 121.100.30.0/24 | AS38761PT. Sakti Putra Mandiri | Indonesia | Valid | 17 | 2026-10-02 |
| 121.100.31.0/24 | AS38761PT. Sakti Putra Mandiri | Indonesia | Valid | 17 | 2026-10-02 |
| 121.100.32.0/20 | AS38258Sony - ASN for Asia Pacific | Singapore | Not found | 17 | 2026-10-02 |
| 121.100.40.0/21 | AS38258Sony - ASN for Asia Pacific | Singapore | Not found | 17 | 2026-10-02 |
| 121.100.48.0/21 | AS38742Afghan Wireless Communication Company | Afghanistan | Valid | 18 | 2026-10-02 |
| 121.100.48.0/24 | AS38742Afghan Wireless Communication Company | Afghanistan | Valid | 17 | 2026-10-02 |
| 121.100.49.0/24 | AS38742Afghan Wireless Communication Company | Afghanistan | Valid | 17 | 2026-10-02 |
| 121.100.50.0/24 | AS38742Afghan Wireless Communication Company | Afghanistan | Valid | 18 | 2026-10-02 |
| 121.100.51.0/24 | AS38742Afghan Wireless Communication Company | Afghanistan | Valid | 17 | 2026-10-02 |
| 121.100.52.0/24 | AS38742Afghan Wireless Communication Company | Afghanistan | Valid | 17 | 2026-10-02 |
| 121.100.53.0/24 | AS38742Afghan Wireless Communication Company | Afghanistan | Valid | 18 | 2026-10-02 |
| 121.100.54.0/24 | AS38742Afghan Wireless Communication Company | Afghanistan | Valid | 18 | 2026-10-02 |
| 121.100.55.0/24 | AS38742Afghan Wireless Communication Company | Afghanistan | Valid | 18 | 2026-10-02 |
| 121.100.56.0/22 | AS18097D.C.N. Corporation | Japan | Not found | 1 | 2026-10-02 |
| 121.100.60.0/22 | AS18097D.C.N. Corporation | Japan | Not found | 1 | 2026-10-02 |
| 121.100.64.0/24 | AS18334Gyounggidongbu cable tv co., Ltd. | South Korea | Not found | 18 | 2026-10-02 |
| 121.100.65.0/24 | AS18334Gyounggidongbu cable tv co., Ltd. | South Korea | Not found | 18 | 2026-10-02 |
| 121.100.66.0/24 | AS18334Gyounggidongbu cable tv co., Ltd. | South Korea | Not found | 18 | 2026-10-02 |
| 121.100.67.0/24 | AS18334Gyounggidongbu cable tv co., Ltd. | South Korea | Not found | 18 | 2026-10-02 |
| 121.100.68.0/22 | AS10036DLIVE | South Korea | Not found | 17 | 2026-10-02 |
| 121.100.72.0/21 | AS18334Gyounggidongbu cable tv co., Ltd. | South Korea | Not found | 18 | 2026-10-02 |
| 121.100.80.0/21 | AS18334Gyounggidongbu cable tv co., Ltd. | South Korea | Not found | 18 | 2026-10-02 |
| 121.100.88.0/21 | AS18334Gyounggidongbu cable tv co., Ltd. | South Korea | Not found | 18 | 2026-10-02 |
| 121.100.96.0/21 | AS18334Gyounggidongbu cable tv co., Ltd. | South Korea | Not found | 18 | 2026-10-02 |
| 121.100.104.0/21 | AS18334Gyounggidongbu cable tv co., Ltd. | South Korea | Not found | 18 | 2026-10-02 |
| 121.100.112.0/21 | AS18334Gyounggidongbu cable tv co., Ltd. | South Korea | Not found | 18 | 2026-10-02 |
| 121.100.120.0/22 | AS10036DLIVE | South Korea | Not found | 18 | 2026-10-02 |
| 121.100.124.0/22 | AS18334Gyounggidongbu cable tv co., Ltd. | South Korea | Not found | 18 | 2026-10-02 |
Every /24 inside it
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01 · License
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