203.121.0.0/16
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.
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.
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 |
|---|---|---|---|---|---|
| 203.121.0.0/19 | AS9930TTNET | Malaysia | Valid | 17 | 2026-10-02 |
| 203.121.10.0/24 | AS19551Incapsula Inc | Malaysia | Valid | 17 | 2026-10-02 |
| 203.121.32.0/19 | AS9930TTNET | Malaysia | Valid | 17 | 2026-10-02 |
| 203.121.35.0/24 | AS9930TTNET | Malaysia | Valid | 17 | 2026-10-02 |
| 203.121.44.0/24 | AS9930TTNET | Malaysia | Valid | 17 | 2026-10-02 |
| 203.121.47.0/24 | AS19551Incapsula Inc | Malaysia | Valid | 17 | 2026-10-02 |
| 203.121.48.0/24 | AS9930TTNET | Malaysia | Valid | 17 | 2026-10-02 |
| 203.121.64.0/18 | AS9930TTNET | Malaysia | Valid | 17 | 2026-10-02 |
| 203.121.101.0/24 | AS9930TTNET | Malaysia | Valid | 17 | 2026-10-02 |
| 203.121.103.0/24 | AS9930TTNET | Malaysia | Valid | 17 | 2026-10-02 |
| 203.121.128.0/20 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.128.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.129.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.130.0/23 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.132.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.133.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.134.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.135.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.136.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.137.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.138.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.139.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.140.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.141.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.142.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.143.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.144.0/23 | AS4765Pacific Internet Pte Ltd | Thailand | Not found | 18 | 2026-10-02 |
| 203.121.144.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.145.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.148.0/22 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 1 | 2026-10-29 |
| 203.121.148.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 1 | 2026-10-29 |
| 203.121.149.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 1 | 2026-10-29 |
| 203.121.150.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.151.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.152.0/23 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.152.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.153.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.159.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.160.0/22 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.160.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.161.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.162.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.163.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.164.0/23 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.164.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 17 | 2026-10-02 |
| 203.121.165.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.166.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 1 | 2026-10-29 |
| 203.121.168.0/23 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.168.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.169.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.171.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.172.0/23 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.172.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.173.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.174.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.178.0/23 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.178.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.179.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.180.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.182.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.185.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.186.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 18 | 2026-10-02 |
| 203.121.188.0/24 | AS4765Pacific Internet Pte Ltd | Thailand | Valid | 1 | 2026-10-29 |
| 203.121.192.0/23 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.192.0/24 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.193.0/24 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.196.0/24 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.197.0/24 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.198.0/23 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.200.0/21 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.200.0/22 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.200.0/24 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.201.0/24 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.202.0/24 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.203.0/24 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.204.0/23 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.204.0/24 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.205.0/24 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.206.0/24 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.207.0/24 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.208.0/22 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.210.0/24 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.211.0/24 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.212.0/23 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.212.0/24 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.213.0/24 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.214.0/23 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.214.0/24 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.215.0/24 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.216.0/22 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.218.0/24 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.220.0/23 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.220.0/24 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.221.0/24 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.222.0/24 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.223.0/24 | AS45763Opticomm Co Pty Ltd | Australia | Not found | 17 | 2026-10-02 |
| 203.121.224.0/20 | AS18419DaDa Broadband LTD. | Taiwan | Valid | 17 | 2026-10-02 |
| 203.121.225.0/24 | AS18419DaDa Broadband LTD. | Taiwan | Valid | 17 | 2026-10-02 |
| 203.121.232.0/21 | AS18419DaDa Broadband LTD. | Taiwan | Valid | 17 | 2026-10-02 |
| 203.121.240.0/20 | AS18419DaDa Broadband LTD. | Taiwan | Valid | 17 | 2026-10-02 |
Every /24 inside it
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