57.140.213.0/24 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
AS19527 Google LLC (Google Cloud)	RPKI valid	45	6939 37662 19527	2026-09-18	2026-10-22
AS15169 Google LLC	RPKI valid	3	37721 15169	2026-10-03	2026-10-22

RPKI

5 ROAs cover this prefix

ROA prefix	Max length	Authorised origin	Trust anchor	Result for this route
57.140.192.0/18	/24	AS15169	arin	wrong origin
57.140.192.0/18	/24	AS19527	arin	authorises it
57.140.192.0/18	/24	AS139070	arin	wrong origin
57.140.192.0/18	/24	AS396982	arin	wrong origin
57.140.0.0/16	/24	AS62654	arin	wrong origin

Registry

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

Delegated block: 57.140.0.0/16
RIR: ARIN
Country: 🇺🇸 US
Status: allocated
Allocated: 2022-08-23

Less specific routes

Announced prefixes that contain this one

Prefix	Origin	RPKI	Peers	Sample path	First seen
57.140.192.0/18 v4	AS15169 Google LLC	RPKI valid	36	34549 15169	2026-09-18
57.140.192.0/18 v4	AS19527 Google LLC (Google Cloud)	RPKI valid	15	6939 19527	2026-09-18

More specific routes

0 announced prefixes inside this one

Nothing more specific is announced.

Recorded changes

When	Change	Origin	Path
2026-10-22 03:42:34Z	origin change	AS15169 → AS19527	202365 6939 37662 19527
2026-10-22 03:19:15Z	origin change	AS19527 → AS15169	17639 5511 15169
2026-10-21 12:29:44Z	origin change	AS15169 → AS19527	202365 6939 37662 19527
2026-10-21 12:18:38Z	origin change	AS19527 → AS15169	17639 5511 15169
2026-10-19 11:39:28Z	origin change	AS15169 → AS19527	13830 971 6939 37662 19527
2026-10-19 09:32:55Z	origin change	AS19527 → AS15169	37721 15169
2026-10-19 08:06:08Z	origin change	AS15169 → AS19527	202365 6939 37662 19527
2026-10-19 05:10:48Z	origin change	AS19527 → AS15169	17639 5511 15169
2026-10-19 04:55:38Z	origin change	AS15169 → AS19527	202365 6939 37662 19527
2026-10-19 03:26:16Z	origin change	AS19527 → AS15169	17639 5511 15169
2026-10-18 19:24:02Z	origin change	AS15169 → AS19527	24482 37662 19527
2026-10-18 19:24:02Z	origin change	AS19527 → AS15169	3333 1136 5511 15169
2026-10-18 18:53:00Z	origin change	AS15169 → AS19527	206499 6939 37662 19527
2026-10-18 18:53:00Z	origin change	AS19527 → AS15169	3333 1136 5511 15169
2026-10-18 14:30:12Z	origin change	AS15169 → AS19527	328840 327727 174 1299 6939 6939 37662 19527
2026-10-18 13:45:53Z	origin change	AS19527 → AS15169	17639 5511 15169
2026-10-18 13:37:42Z	origin change	AS15169 → AS19527	202365 6939 37662 19527
2026-10-18 12:33:15Z	origin change	AS19527 → AS15169	17639 5511 15169
2026-10-15 09:20:38Z	origin change	AS15169 → AS19527	216285 6939 37662 19527
2026-10-15 08:16:02Z	origin change	AS19527 → AS15169	37721 15169
2026-10-12 19:25:26Z	origin change	AS15169 → AS19527	202365 6939 37662 19527
2026-10-12 18:35:16Z	origin change	AS19527 → AS15169	37721 15169
2026-10-11 02:09:53Z	origin change	AS15169 → AS19527	202365 6939 37662 19527
2026-10-10 23:40:09Z	origin change	AS19527 → AS15169	17639 5511 15169
2026-10-10 12:58:12Z	origin change	AS15169 → AS19527	202365 6939 37662 19527
2026-10-10 10:10:17Z	origin change	AS19527 → AS15169	17639 5511 15169
2026-10-10 02:38:03Z	origin change	AS15169 → AS19527	202365 6939 37662 19527
2026-10-10 01:16:56Z	origin change	AS19527 → AS15169	17639 5511 15169
2026-10-10 00:44:12Z	origin change	AS15169 → AS19527	202365 6939 37662 19527
2026-10-10 00:29:55Z	origin change	AS19527 → AS15169	17639 5511 15169
2026-10-09 15:10:25Z	origin change	AS15169 → AS19527	202365 6939 37662 19527
2026-10-09 13:20:38Z	origin change	AS19527 → AS15169	17639 5511 15169