199.18.241.0/24 no ROA 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
AS600 OARnet no ROA 47 7018600 2026-09-18 2026-10-01
AS3112 OARnet no ROA 1 3822924490115373112 2026-09-18 2026-10-01

RPKI

No ROA covers this prefix

No ROA covers this prefix, so origin validation returns "unknown". That is not a fault; most of the table is still unsigned.

Registry

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

Delegated block
199.18.0.0/16
RIR
ARIN
Country
πŸ‡ΊπŸ‡Έ US
Status
allocated
Allocated
1993-09-30

Less specific routes

Announced prefixes that contain this one

Prefix Origin RPKI Peers Sample path First seen
199.18.0.0/16 v4 AS600 OARnet no ROA 47 37721600 2026-09-18

More specific routes

0 announced prefixes inside this one

Nothing more specific is announced.

Recorded changes

WhenChangeOriginPath
2026-09-27 19:53:51Z origin change AS3112 β†’ AS600 2023656939600
2026-09-27 16:58:42Z origin change AS600 β†’ AS3112 3822924490115373112
2026-09-25 17:17:55Z origin change AS3112 β†’ AS600 2023656939600
2026-09-25 17:00:14Z origin change AS600 β†’ AS3112 3822924490115373112