Pulse — Sudden withdrawal event

ASNs whose active prefix count dropped by ≥50% in the last hour vs. the 1–7h baseline — outages, DDoS-blackhole, route leak fallout.

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Events last 24h

355

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Oct 14, 07:44 UTC

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What is Sudden withdrawal event?

A withdrawal event is when an origin AS stops announcing prefixes it was routing. We flag ASNs whose active-prefix count dropped by 50% or more in the last hour versus the 1–7h baseline, because large sudden withdrawals can indicate an outage, a fibre cut, a de-peering, or route-leak fallout.

Geographic distribution

Flagged events

Showing 200 most recent of 355 · last 24h

Most recent Sudden withdrawal event events detected across RIPE RIS collectors in the last 24 hours
When	Severity	Prefix	AS	Drop
Oct 14, 07:44 UTC	80	*	AS9294	33.8% (313 lost)
Oct 14, 07:44 UTC	80	*	AS136969	100.0% (27 lost)
Oct 14, 07:44 UTC	70	*	AS22709	37.6% (32 lost)
Oct 14, 07:44 UTC	70	*	AS133594	34.6% (9 lost)
Oct 14, 07:44 UTC	70	*	AS20912	42.9% (6 lost)
Oct 14, 07:44 UTC	80	*	AS215721	100.0% (6 lost)
Oct 14, 07:44 UTC	80	*	AS10429	46.2% (72 lost)
Oct 14, 07:44 UTC	80	*	AS133593	80.6% (25 lost)
Oct 14, 07:44 UTC	80	*	AS7821	100.0% (17 lost)
Oct 14, 07:44 UTC	70	*	AS28227	39.1% (9 lost)
Oct 14, 07:29 UTC	70	*	AS329181	80.0% (12 lost)
Oct 14, 07:29 UTC	70	*	AS198721	63.2% (12 lost)
Oct 14, 07:29 UTC	80	*	AS136642	100.0% (5 lost)
Oct 14, 07:29 UTC	70	*	AS138797	54.5% (6 lost)
Oct 14, 06:59 UTC	70	*	AS12654	36.4% (8 lost)
Oct 14, 06:59 UTC	80	*	AS266231	100.0% (7 lost)
Oct 14, 06:59 UTC	70	*	AS264067	80.0% (8 lost)
Oct 14, 06:59 UTC	80	*	AS41984	83.3% (5 lost)
Oct 14, 06:59 UTC	70	*	AS7577	31.8% (7 lost)
Oct 14, 06:44 UTC	80	*	AS137951	54.0% (218 lost)
Oct 14, 06:44 UTC	80	*	AS274401	100.0% (5 lost)
Oct 14, 06:44 UTC	70	*	AS28137	50.0% (5 lost)
Oct 14, 06:44 UTC	70	*	AS33734	63.3% (31 lost)
Oct 14, 06:29 UTC	70	*	AS31619	38.5% (5 lost)
Oct 14, 06:29 UTC	80	*	AS40837	100.0% (11 lost)
Oct 14, 06:29 UTC	70	*	AS271907	41.6% (32 lost)
Oct 14, 06:29 UTC	80	*	AS33778	85.7% (6 lost)
Oct 14, 06:29 UTC	70	*	AS32160	38.5% (5 lost)
Oct 14, 06:29 UTC	70	*	AS61893	44.4% (16 lost)
Oct 14, 06:14 UTC	70	*	AS55140	74.1% (20 lost)
Oct 14, 06:14 UTC	80	*	AS56106	87.5% (7 lost)
Oct 14, 06:14 UTC	80	*	AS266057	100.0% (7 lost)
Oct 14, 06:14 UTC	80	*	AS267676	100.0% (7 lost)
Oct 14, 06:14 UTC	70	*	AS399898	56.4% (44 lost)
Oct 14, 05:59 UTC	80	*	AS58330	100.0% (5 lost)
Oct 14, 05:44 UTC	80	*	AS13053	100.0% (5 lost)
Oct 14, 05:44 UTC	70	*	AS262588	60.6% (20 lost)
Oct 14, 05:29 UTC	70	*	AS52253	37.5% (6 lost)
Oct 14, 05:29 UTC	70	*	AS16628	30.6% (19 lost)
Oct 14, 05:29 UTC	80	*	AS215228	100.0% (5 lost)
Oct 14, 04:59 UTC	70	*	AS207234	72.7% (8 lost)
Oct 14, 04:59 UTC	70	*	AS199284	57.1% (12 lost)
Oct 14, 04:59 UTC	80	*	AS328446	83.3% (10 lost)
Oct 14, 04:59 UTC	80	*	AS264147	85.7% (6 lost)
Oct 14, 04:59 UTC	80	*	AS5386	100.0% (6 lost)
Oct 14, 04:44 UTC	70	*	AS398191	37.5% (6 lost)
Oct 14, 04:44 UTC	80	*	AS30113	83.3% (5 lost)
Oct 14, 04:44 UTC	80	*	AS30938	100.0% (5 lost)
Oct 14, 04:44 UTC	70	*	AS262886	53.3% (8 lost)
Oct 14, 04:44 UTC	70	*	AS53238	42.1% (16 lost)
Oct 14, 04:44 UTC	70	*	AS53134	34.6% (9 lost)
Oct 14, 04:29 UTC	80	*	AS36998	36.7% (90 lost)
Oct 14, 04:29 UTC	70	*	AS264552	50.0% (14 lost)
Oct 14, 04:29 UTC	70	*	AS262504	52.9% (18 lost)
Oct 14, 04:29 UTC	80	*	AS264228	83.3% (10 lost)
Oct 14, 04:14 UTC	70	*	AS263924	57.1% (8 lost)
Oct 14, 04:14 UTC	70	*	AS264491	50.0% (7 lost)
Oct 14, 03:44 UTC	70	*	AS33490	30.3% (10 lost)
Oct 14, 03:44 UTC	70	*	AS266160	60.0% (6 lost)
Oct 14, 03:44 UTC	70	*	AS263652	30.3% (10 lost)
Oct 14, 03:29 UTC	80	*	AS27697	86.4% (19 lost)
Oct 14, 03:29 UTC	80	*	AS18111	100.0% (5 lost)
Oct 14, 03:29 UTC	70	*	AS264186	57.1% (8 lost)
Oct 14, 02:59 UTC	70	*	AS51500	47.8% (11 lost)
Oct 14, 02:59 UTC	70	*	AS263053	50.0% (6 lost)
Oct 14, 02:44 UTC	70	*	AS27893	40.9% (9 lost)
Oct 14, 02:44 UTC	70	*	AS328320	66.7% (6 lost)
Oct 14, 02:29 UTC	80	*	AS21928	43.1% (122 lost)
Oct 14, 02:29 UTC	70	*	AS20477	31.8% (7 lost)
Oct 14, 02:29 UTC	90	*	AS34550	100.0% (132 lost)
Oct 14, 02:14 UTC	80	*	AS37506	100.0% (9 lost)
Oct 14, 02:14 UTC	70	*	AS201550	54.2% (26 lost)
Oct 14, 02:14 UTC	70	*	AS262213	65.2% (15 lost)
Oct 14, 01:59 UTC	80	*	AS36912	47.8% (139 lost)
Oct 14, 01:59 UTC	80	*	AS5713	51.9% (83 lost)
Oct 14, 01:44 UTC	70	*	AS262480	53.8% (7 lost)
Oct 14, 01:44 UTC	80	*	AS265136	100.0% (7 lost)
Oct 14, 01:44 UTC	70	*	AS30983	60.0% (9 lost)
Oct 14, 01:29 UTC	80	*	AS203545	87.5% (7 lost)
Oct 14, 01:29 UTC	80	*	AS215238	100.0% (21 lost)
Oct 14, 01:29 UTC	90	*	AS28787	90.2% (240 lost)
Oct 14, 01:29 UTC	80	*	AS212219	100.0% (38 lost)
Oct 14, 01:29 UTC	80	*	AS136100	100.0% (5 lost)
Oct 14, 01:14 UTC	80	*	AS16742	85.7% (6 lost)
Oct 14, 01:14 UTC	80	*	AS41054	100.0% (5 lost)
Oct 14, 00:44 UTC	80	*	AS271414	85.7% (6 lost)
Oct 14, 00:44 UTC	70	*	AS35826	54.5% (6 lost)
Oct 14, 00:44 UTC	80	*	AS48065	31.4% (37 lost)
Oct 14, 00:29 UTC	90	*	AS5277	92.5% (172 lost)
Oct 14, 00:14 UTC	80	*	AS34978	100.0% (5 lost)
Oct 14, 00:14 UTC	70	*	AS62166	57.1% (8 lost)
Oct 14, 00:14 UTC	70	*	AS52898	68.2% (15 lost)
Oct 14, 00:14 UTC	80	*	AS62275	100.0% (6 lost)
Oct 14, 00:14 UTC	80	*	AS210421	100.0% (15 lost)
Oct 14, 00:14 UTC	70	*	AS38851	33.9% (19 lost)
Oct 13, 23:59 UTC	80	*	AS267320	85.7% (6 lost)
Oct 13, 23:59 UTC	70	*	AS267013	71.4% (5 lost)
Oct 13, 23:59 UTC	70	*	AS29515	72.0% (18 lost)
Oct 13, 23:59 UTC	80	*	AS266268	85.7% (6 lost)
Oct 13, 23:44 UTC	70	*	AS61466	41.4% (24 lost)
Oct 13, 23:29 UTC	70	*	AS61939	41.7% (5 lost)
Oct 13, 23:29 UTC	80	*	AS268145	100.0% (7 lost)
Oct 13, 23:29 UTC	80	*	AS268976	40.8% (71 lost)
Oct 13, 23:29 UTC	70	*	AS15549	58.3% (7 lost)
Oct 13, 23:29 UTC	70	*	AS28583	33.3% (6 lost)
Oct 13, 23:14 UTC	70	*	AS25429	50.0% (7 lost)
Oct 13, 23:14 UTC	70	*	AS37545	61.0% (25 lost)
Oct 13, 23:14 UTC	70	*	AS264005	80.0% (8 lost)
Oct 13, 23:14 UTC	80	*	AS42998	100.0% (6 lost)
Oct 13, 22:59 UTC	80	*	AS213269	100.0% (6 lost)
Oct 13, 22:44 UTC	80	*	AS147302	100.0% (13 lost)
Oct 13, 22:44 UTC	80	*	AS41039	100.0% (66 lost)
Oct 13, 22:44 UTC	70	*	AS48887	30.0% (6 lost)
Oct 13, 22:44 UTC	70	*	AS213323	60.0% (6 lost)
Oct 13, 22:44 UTC	70	*	AS211101	46.4% (13 lost)
Oct 13, 22:29 UTC	80	*	AS190	100.0% (5 lost)
Oct 13, 22:29 UTC	80	*	AS267608	100.0% (7 lost)
Oct 13, 22:29 UTC	70	*	AS58487	63.8% (37 lost)
Oct 13, 22:29 UTC	80	*	AS62250	100.0% (15 lost)
Oct 13, 22:14 UTC	80	*	AS198357	100.0% (13 lost)
Oct 13, 22:14 UTC	80	*	AS48431	100.0% (10 lost)
Oct 13, 22:14 UTC	70	*	AS36530	30.4% (7 lost)
Oct 13, 22:14 UTC	70	*	AS60847	40.0% (6 lost)
Oct 13, 21:59 UTC	70	*	AS273244	75.0% (6 lost)
Oct 13, 21:59 UTC	80	*	AS263858	85.7% (6 lost)
Oct 13, 21:59 UTC	80	*	AS57474	83.3% (5 lost)
Oct 13, 21:59 UTC	80	*	AS213852	100.0% (10 lost)
Oct 13, 21:59 UTC	80	*	AS200645	100.0% (5 lost)
Oct 13, 21:59 UTC	80	*	AS48147	100.0% (35 lost)
Oct 13, 21:59 UTC	80	*	AS49972	87.5% (7 lost)
Oct 13, 21:59 UTC	80	*	AS204834	100.0% (12 lost)
Oct 13, 21:59 UTC	80	*	AS57497	93.1% (27 lost)
Oct 13, 21:59 UTC	70	*	AS9147	57.5% (23 lost)
Oct 13, 21:59 UTC	70	*	AS270364	71.4% (5 lost)
Oct 13, 21:59 UTC	80	*	AS29577	100.0% (17 lost)
Oct 13, 21:59 UTC	70	*	AS262770	42.9% (9 lost)
Oct 13, 21:44 UTC	70	*	AS206175	43.8% (14 lost)
Oct 13, 21:29 UTC	80	*	AS262557	82.8% (24 lost)
Oct 13, 21:14 UTC	80	*	AS209153	100.0% (8 lost)
Oct 13, 21:14 UTC	80	*	AS34376	85.2% (23 lost)
Oct 13, 20:59 UTC	80	*	AS26410	93.5% (29 lost)
Oct 13, 20:44 UTC	70	*	AS268151	42.9% (6 lost)
Oct 13, 20:44 UTC	70	*	AS147285	41.7% (5 lost)
Oct 13, 20:29 UTC	70	*	AS38987	35.7% (5 lost)
Oct 13, 20:29 UTC	70	*	AS52749	66.7% (6 lost)
Oct 13, 20:29 UTC	70	*	AS13099	51.5% (17 lost)
Oct 13, 20:14 UTC	70	*	AS135839	60.0% (6 lost)
Oct 13, 19:59 UTC	70	*	AS23105	45.0% (9 lost)
Oct 13, 19:59 UTC	70	*	AS28652	30.8% (12 lost)
Oct 13, 19:59 UTC	70	*	AS52940	66.7% (8 lost)
Oct 13, 19:59 UTC	80	*	AS53086	81.8% (9 lost)
Oct 13, 19:59 UTC	80	*	AS18245	100.0% (5 lost)
Oct 13, 19:59 UTC	70	*	AS263084	46.2% (6 lost)
Oct 13, 19:59 UTC	70	*	AS265041	66.7% (6 lost)
Oct 13, 19:59 UTC	70	*	AS356	60.5% (26 lost)
Oct 13, 19:59 UTC	70	*	AS262278	41.7% (5 lost)
Oct 13, 19:59 UTC	70	*	AS52714	60.0% (6 lost)
Oct 13, 19:59 UTC	70	*	AS263083	41.7% (5 lost)
Oct 13, 19:59 UTC	70	*	AS28239	30.0% (6 lost)
Oct 13, 19:59 UTC	70	*	AS53050	53.3% (16 lost)
Oct 13, 19:59 UTC	70	*	AS263495	66.7% (6 lost)
Oct 13, 19:59 UTC	70	*	AS271023	45.5% (5 lost)
Oct 13, 19:44 UTC	70	*	AS61696	57.1% (8 lost)
Oct 13, 19:44 UTC	70	*	AS61923	80.0% (8 lost)
Oct 13, 19:44 UTC	80	*	AS268273	83.3% (5 lost)
Oct 13, 19:44 UTC	70	*	AS28287	35.2% (19 lost)
Oct 13, 19:44 UTC	80	*	AS266399	85.7% (6 lost)
Oct 13, 19:44 UTC	80	*	AS268222	83.3% (5 lost)
Oct 13, 19:44 UTC	70	*	AS262346	76.0% (19 lost)
Oct 13, 19:44 UTC	70	*	AS262757	57.1% (8 lost)
Oct 13, 19:44 UTC	70	*	AS263520	56.5% (13 lost)
Oct 13, 19:44 UTC	70	*	AS262839	53.3% (8 lost)
Oct 13, 19:44 UTC	70	*	AS263322	57.1% (8 lost)
Oct 13, 19:44 UTC	70	*	AS263028	51.6% (16 lost)
Oct 13, 19:44 UTC	80	*	AS53171	88.0% (22 lost)
Oct 13, 19:44 UTC	70	*	AS262706	47.4% (9 lost)
Oct 13, 19:44 UTC	70	*	AS28195	66.7% (8 lost)
Oct 13, 19:44 UTC	70	*	AS266207	66.7% (6 lost)
Oct 13, 19:44 UTC	70	*	AS52575	60.0% (6 lost)
Oct 13, 19:44 UTC	70	*	AS61844	66.7% (8 lost)
Oct 13, 19:44 UTC	80	*	AS270689	85.7% (6 lost)
Oct 13, 19:44 UTC	70	*	AS265933	66.7% (6 lost)
Oct 13, 19:44 UTC	70	*	AS28263	53.3% (24 lost)
Oct 13, 19:44 UTC	70	*	AS262591	37.2% (32 lost)
Oct 13, 19:44 UTC	80	*	AS266165	85.7% (6 lost)
Oct 13, 19:44 UTC	80	*	AS52638	90.0% (9 lost)
Oct 13, 19:44 UTC	70	*	AS266211	61.5% (8 lost)
Oct 13, 19:44 UTC	70	*	AS262708	73.3% (11 lost)
Oct 13, 19:44 UTC	80	*	AS265106	85.7% (6 lost)
Oct 13, 19:44 UTC	80	*	AS52855	100.0% (9 lost)
Oct 13, 19:44 UTC	70	*	AS28666	46.2% (6 lost)
Oct 13, 19:44 UTC	70	*	AS28166	36.1% (26 lost)
Oct 13, 19:44 UTC	80	*	AS268782	85.7% (6 lost)
Oct 13, 19:44 UTC	70	*	AS268829	57.1% (8 lost)
Oct 13, 19:44 UTC	70	*	AS262986	51.6% (16 lost)
Oct 13, 19:44 UTC	80	*	AS264217	85.7% (6 lost)
Oct 13, 19:44 UTC	70	*	AS262722	57.1% (8 lost)
Oct 13, 19:44 UTC	80	*	AS264929	85.7% (6 lost)
Oct 13, 19:44 UTC	70	*	AS263432	54.5% (24 lost)
Oct 13, 19:44 UTC	80	*	AS263907	85.7% (6 lost)

Frequently Asked Questions

What is a BGP Sudden withdrawal event?

Where does this data come from?

Every event is detected from live BGP updates collected across 23 RIPE RIS route collectors worldwide, ingested into a ClickHouse time-series store and re-evaluated every few minutes. No third-party feed is resold; the analysis is original to WorldIP.io.

How often is the Sudden withdrawal event feed updated?

The feed recomputes roughly every 5 minutes; it was last refreshed at 2026-10-14 07:50 UTC.

How do I subscribe to Sudden withdrawal event events?

Subscribe to the Atom feed at /pulse/bgp/withdrawal.atom or poll the JSON endpoint at /api/pulse/bgp/withdrawal.