120.133.32.0/20 RPKI valid MOAS

Announced by 2 different origins, which is either a deliberate multi-origin setup or a hijack.

This prefix is announced by more than one AS. Compare how many collector peers see each origin below: a hijack is usually visible as a second origin seen by far fewer peers than the legitimate one.

Origins

Origin ASRPKI Peers seeing itSample path First seenLast seen
AS23724 China Telecom Beijing IDC Network RPKI valid 28 37721174413423724 2026-09-18 2026-09-19
AS4808 China Unicom Beijing Province Network RPKI valid 14 701848374808 2026-09-18 2026-09-19

RPKI

13 ROAs cover this prefix

ROA prefixMax lengthAuthorised originTrust anchorResult for this route
120.133.0.0/17 /32 AS4808 apnic wrong origin
120.133.0.0/17 /32 AS4835 apnic wrong origin
120.133.0.0/17 /32 AS4847 apnic wrong origin
120.133.0.0/17 /32 AS9308 apnic wrong origin
120.133.0.0/17 /32 AS9802 apnic wrong origin
120.133.0.0/17 /32 AS9808 apnic wrong origin
120.133.0.0/17 /32 AS17428 apnic wrong origin
120.133.0.0/17 /32 AS23724 apnic authorises it
120.133.0.0/17 /32 AS56048 apnic wrong origin
120.133.0.0/17 /32 AS59020 apnic wrong origin
120.133.0.0/17 /32 AS133111 apnic wrong origin
120.133.0.0/17 /32 AS133119 apnic wrong origin
120.133.0.0/17 /32 AS141679 apnic wrong origin

Registry

Who this address space is delegated to, regardless of whether it is routed

Delegated block
120.133.0.0/16
RIR
APNIC
Country
🇨🇳 CN
Status
allocated
Allocated
2008-04-04

Less specific routes

Announced prefixes that contain this one

Prefix Origin RPKI Peers Sample path First seen
120.133.0.0/18 v4 AS9802 Abitcool(China) Inc. RPKI valid 11 7018483748089802 2026-09-18
120.133.0.0/18 v4 AS9308 Abitcool(China) Inc. RPKI valid 30 37721174413448479308 2026-09-18
120.133.0.0/17 v4 AS9308 Abitcool(China) Inc. RPKI valid 41 7018413448479308 2026-09-18
120.133.0.0/16 v4 AS23724 China Telecom Beijing IDC Network no ROA 41 7018413423724 2026-09-18

More specific routes

0 announced prefixes inside this one

Nothing more specific is announced.

Recorded changes

WhenChangeOriginPath
2026-09-19 16:16:24Z origin change AS4808 → AS23724 5572099302914413423724
2026-09-19 16:02:55Z origin change AS23724 → AS4808 6129244356476648374808
2026-09-18 06:49:02Z origin change AS4808 → AS23724 5572023764413423724
2026-09-18 06:29:50Z origin change AS23724 → AS4808 349275665548374808