115.66.33.0/24 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 AS	RPKI	Peers seeing it	Sample path	First seen	Last seen
AS9506 Singtel Fibre Broadband	RPKI valid	41	38001 7473 3758 9506	2026-09-18	2026-10-16
AS3758 SingNet	RPKI valid	1	37989 56300 132132 4657 3758	2026-10-08	2026-10-16

RPKI

3 ROAs cover this prefix

ROA prefix	Max length	Authorised origin	Trust anchor	Result for this route
115.66.0.0/16	/24	AS3758	apnic	wrong origin
115.66.0.0/16	/24	AS9506	apnic	authorises it
115.66.0.0/16	/24	AS19905	apnic	wrong origin

Registry

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

Delegated block: 115.66.0.0/16
RIR: APNIC
Country: 🇸🇬 SG
Status: allocated
Allocated: 2008-07-15

Less specific routes

Announced prefixes that contain this one

Prefix	Origin	RPKI	Peers	Sample path	First seen
115.66.0.0/17 v4	AS9506 Singtel Fibre Broadband	RPKI valid	43	38001 7473 3758 9506	2026-09-18
115.66.0.0/16 v4	AS9506 Singtel Fibre Broadband	RPKI valid	43	38001 7473 3758 9506	2026-09-18

More specific routes

0 announced prefixes inside this one

Nothing more specific is announced.

Recorded changes

When	Change	Origin	Path
2026-10-14 03:35:15Z	origin change	AS3758 → AS9506	328840 327727 174 1299 7473 3758 9506
2026-10-14 03:32:17Z	origin change	AS9506 → AS3758	37989 56300 132132 4657 3758
2026-10-07 16:19:46Z	origin change	AS3758 → AS9506	14907 1299 7473 3758 9506
2026-10-07 16:09:04Z	origin change	AS9506 → AS3758	37989 56300 132132 4657 3758