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

3,127

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Aug 31, 13:39 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 3,127 · last 24h

Most recent Sudden withdrawal event events detected across RIPE RIS collectors in the last 24 hours
When	Severity	Prefix	AS	Drop
Aug 31, 13:39 UTC	80	*	AS269018	100.0% (7 lost)
Aug 31, 13:39 UTC	80	*	AS202161	100.0% (14 lost)
Aug 31, 13:39 UTC	80	*	AS52977	100.0% (7 lost)
Aug 31, 13:39 UTC	80	*	AS265142	100.0% (7 lost)
Aug 31, 13:39 UTC	80	*	AS32524	98.5% (67 lost)
Aug 31, 13:39 UTC	80	*	AS268280	83.3% (5 lost)
Aug 31, 13:39 UTC	70	*	AS43338	45.5% (5 lost)
Aug 31, 13:39 UTC	70	*	AS9751	63.2% (12 lost)
Aug 31, 13:39 UTC	70	*	AS263853	50.0% (6 lost)
Aug 31, 13:39 UTC	70	*	AS54201	33.3% (5 lost)
Aug 31, 13:39 UTC	70	*	AS399646	50.0% (15 lost)
Aug 31, 13:39 UTC	80	*	AS25892	94.4% (17 lost)
Aug 31, 13:39 UTC	70	*	AS30021	75.0% (9 lost)
Aug 31, 13:39 UTC	70	*	AS262565	54.5% (6 lost)
Aug 31, 13:39 UTC	80	*	AS23471	100.0% (7 lost)
Aug 31, 13:39 UTC	80	*	AS264235	100.0% (5 lost)
Aug 31, 13:39 UTC	70	*	AS54623	50.0% (6 lost)
Aug 31, 13:39 UTC	80	*	AS269329	100.0% (5 lost)
Aug 31, 13:39 UTC	80	*	AS137951	50.0% (71 lost)
Aug 31, 13:39 UTC	70	*	AS23002	70.0% (21 lost)
Aug 31, 13:39 UTC	80	*	AS268397	85.7% (6 lost)
Aug 31, 13:39 UTC	70	*	AS11676	77.8% (35 lost)
Aug 31, 13:39 UTC	80	*	AS22088	100.0% (5 lost)
Aug 31, 13:39 UTC	70	*	AS36874	47.1% (8 lost)
Aug 31, 13:39 UTC	80	*	AS55045	92.9% (13 lost)
Aug 31, 13:39 UTC	70	*	AS210258	80.0% (8 lost)
Aug 31, 13:39 UTC	70	*	AS48326	35.7% (5 lost)
Aug 31, 13:39 UTC	80	*	AS267717	100.0% (7 lost)
Aug 31, 13:39 UTC	70	*	AS46378	45.5% (10 lost)
Aug 31, 13:39 UTC	70	*	AS52860	66.7% (6 lost)
Aug 31, 13:39 UTC	80	*	AS40727	100.0% (12 lost)
Aug 31, 13:39 UTC	70	*	AS262428	61.4% (35 lost)
Aug 31, 13:39 UTC	70	*	AS40861	32.9% (27 lost)
Aug 31, 13:39 UTC	80	*	AS16378	94.1% (16 lost)
Aug 31, 13:39 UTC	70	*	AS269167	35.7% (5 lost)
Aug 31, 13:39 UTC	70	*	AS55189	55.6% (5 lost)
Aug 31, 13:39 UTC	70	*	AS268188	33.3% (5 lost)
Aug 31, 13:39 UTC	70	*	AS18018	50.0% (12 lost)
Aug 31, 13:39 UTC	80	*	AS46414	93.8% (15 lost)
Aug 31, 13:39 UTC	90	*	AS28201	92.8% (219 lost)
Aug 31, 13:39 UTC	80	*	AS327926	86.7% (13 lost)
Aug 31, 13:39 UTC	80	*	AS53139	93.8% (30 lost)
Aug 31, 13:39 UTC	80	*	AS134729	87.5% (63 lost)
Aug 31, 13:39 UTC	70	*	AS395479	37.5% (6 lost)
Aug 31, 13:39 UTC	70	*	AS26118	31.2% (5 lost)
Aug 31, 13:39 UTC	70	*	AS328638	66.7% (14 lost)
Aug 31, 13:39 UTC	70	*	AS265279	57.1% (12 lost)
Aug 31, 13:39 UTC	70	*	AS11700	61.5% (8 lost)
Aug 31, 13:39 UTC	80	*	AS268818	100.0% (7 lost)
Aug 31, 13:39 UTC	80	*	AS54706	81.2% (26 lost)
Aug 31, 13:39 UTC	80	*	AS24492	51.8% (57 lost)
Aug 31, 13:39 UTC	70	*	AS28261	46.2% (6 lost)
Aug 31, 13:39 UTC	80	*	AS266591	100.0% (6 lost)
Aug 31, 13:39 UTC	80	*	AS17040	100.0% (6 lost)
Aug 31, 13:39 UTC	80	*	AS271508	85.7% (6 lost)
Aug 31, 13:39 UTC	70	*	AS11228	41.7% (5 lost)
Aug 31, 13:39 UTC	70	*	AS44521	57.1% (8 lost)
Aug 31, 13:39 UTC	70	*	AS265937	31.6% (6 lost)
Aug 31, 13:39 UTC	70	*	AS11183	33.3% (7 lost)
Aug 31, 13:39 UTC	70	*	AS58826	75.0% (6 lost)
Aug 31, 13:39 UTC	70	*	AS133772	31.5% (17 lost)
Aug 31, 13:39 UTC	80	*	AS39370	100.0% (10 lost)
Aug 31, 13:39 UTC	90	*	AS12252	88.8% (6,434 lost)
Aug 31, 13:39 UTC	70	*	AS263263	76.9% (10 lost)
Aug 31, 13:39 UTC	70	*	AS4818	53.8% (7 lost)
Aug 31, 13:39 UTC	70	*	AS262689	67.3% (33 lost)
Aug 31, 13:39 UTC	80	*	AS14920	100.0% (11 lost)
Aug 31, 13:39 UTC	70	*	AS41362	76.9% (10 lost)
Aug 31, 13:39 UTC	80	*	AS63168	100.0% (5 lost)
Aug 31, 13:39 UTC	70	*	AS49823	70.0% (7 lost)
Aug 31, 13:39 UTC	70	*	AS26881	46.7% (7 lost)
Aug 31, 13:39 UTC	70	*	AS8257	53.8% (7 lost)
Aug 31, 13:39 UTC	70	*	AS201603	60.0% (6 lost)
Aug 31, 13:39 UTC	80	*	AS262283	84.2% (16 lost)
Aug 31, 13:39 UTC	80	*	AS264592	85.7% (6 lost)
Aug 31, 13:39 UTC	80	*	AS393526	100.0% (6 lost)
Aug 31, 13:39 UTC	80	*	AS267348	100.0% (7 lost)
Aug 31, 13:39 UTC	80	*	AS266831	100.0% (5 lost)
Aug 31, 13:39 UTC	70	*	AS138152	34.1% (15 lost)
Aug 31, 13:39 UTC	70	*	AS40564	44.8% (13 lost)
Aug 31, 13:39 UTC	80	*	AS264332	100.0% (7 lost)
Aug 31, 13:39 UTC	70	*	AS40026	50.0% (5 lost)
Aug 31, 13:39 UTC	80	*	AS36504	100.0% (9 lost)
Aug 31, 13:39 UTC	70	*	AS37199	66.7% (6 lost)
Aug 31, 13:39 UTC	80	*	AS4249	38.0% (89 lost)
Aug 31, 13:39 UTC	70	*	AS267174	71.4% (5 lost)
Aug 31, 13:39 UTC	80	*	AS147019	89.4% (42 lost)
Aug 31, 13:39 UTC	80	*	AS26615	41.0% (664 lost)
Aug 31, 13:39 UTC	80	*	AS41741	88.9% (8 lost)
Aug 31, 13:39 UTC	80	*	AS138559	100.0% (6 lost)
Aug 31, 13:39 UTC	80	*	AS267117	100.0% (7 lost)
Aug 31, 13:39 UTC	70	*	AS53236	38.9% (7 lost)
Aug 31, 13:39 UTC	70	*	AS58789	80.0% (8 lost)
Aug 31, 13:39 UTC	70	*	AS30016	80.0% (8 lost)
Aug 31, 13:39 UTC	70	*	AS53094	31.6% (6 lost)
Aug 31, 13:39 UTC	70	*	AS31747	34.6% (9 lost)
Aug 31, 13:39 UTC	80	*	AS18801	85.7% (6 lost)
Aug 31, 13:39 UTC	80	*	AS215721	100.0% (6 lost)
Aug 31, 13:39 UTC	80	*	AS262669	100.0% (49 lost)
Aug 31, 13:39 UTC	70	*	AS45644	53.8% (7 lost)
Aug 31, 13:39 UTC	70	*	AS8518	34.2% (13 lost)
Aug 31, 13:39 UTC	80	*	AS52777	85.7% (6 lost)
Aug 31, 13:39 UTC	80	*	AS131232	100.0% (5 lost)
Aug 31, 13:39 UTC	70	*	AS28227	52.2% (12 lost)
Aug 31, 13:39 UTC	80	*	AS202763	88.9% (8 lost)
Aug 31, 13:39 UTC	70	*	AS25273	54.5% (18 lost)
Aug 31, 13:39 UTC	80	*	AS3356	46.5% (893 lost)
Aug 31, 13:39 UTC	70	*	AS27482	41.2% (14 lost)
Aug 31, 13:24 UTC	70	*	AS52533	43.8% (7 lost)
Aug 31, 13:24 UTC	70	*	AS202660	38.5% (5 lost)
Aug 31, 13:24 UTC	70	*	AS202024	55.6% (10 lost)
Aug 31, 13:24 UTC	80	*	AS268421	100.0% (5 lost)
Aug 31, 13:24 UTC	70	*	AS139820	71.4% (20 lost)
Aug 31, 13:24 UTC	80	*	AS29385	100.0% (16 lost)
Aug 31, 13:24 UTC	80	*	AS39032	100.0% (7 lost)
Aug 31, 13:24 UTC	70	*	AS21887	38.1% (8 lost)
Aug 31, 13:24 UTC	80	*	AS201678	100.0% (16 lost)
Aug 31, 13:24 UTC	80	*	AS264495	100.0% (5 lost)
Aug 31, 13:24 UTC	80	*	AS263501	82.1% (23 lost)
Aug 31, 13:24 UTC	80	*	AS271657	100.0% (5 lost)
Aug 31, 13:24 UTC	70	*	AS213029	62.5% (5 lost)
Aug 31, 13:24 UTC	70	*	AS141031	30.8% (8 lost)
Aug 31, 13:24 UTC	80	*	AS264045	100.0% (5 lost)
Aug 31, 13:24 UTC	80	*	AS268707	83.3% (5 lost)
Aug 31, 13:24 UTC	80	*	AS267242	100.0% (11 lost)
Aug 31, 13:24 UTC	70	*	AS49273	36.2% (25 lost)
Aug 31, 13:24 UTC	70	*	AS41202	41.2% (7 lost)
Aug 31, 13:24 UTC	80	*	AS17557	31.8% (416 lost)
Aug 31, 13:24 UTC	70	*	AS38742	38.0% (30 lost)
Aug 31, 13:24 UTC	70	*	AS263934	77.8% (7 lost)
Aug 31, 13:24 UTC	80	*	AS265034	100.0% (5 lost)
Aug 31, 13:24 UTC	70	*	AS264915	71.4% (5 lost)
Aug 31, 13:24 UTC	70	*	AS22128	50.0% (8 lost)
Aug 31, 13:24 UTC	80	*	AS7821	100.0% (17 lost)
Aug 31, 13:24 UTC	70	*	AS43647	35.0% (21 lost)
Aug 31, 13:24 UTC	70	*	AS266208	75.0% (6 lost)
Aug 31, 13:24 UTC	70	*	AS26616	51.1% (24 lost)
Aug 31, 13:24 UTC	70	*	AS137910	50.0% (6 lost)
Aug 31, 13:24 UTC	70	*	AS17071	30.2% (26 lost)
Aug 31, 13:24 UTC	70	*	AS265435	75.0% (9 lost)
Aug 31, 13:24 UTC	80	*	AS265981	100.0% (7 lost)
Aug 31, 13:24 UTC	70	*	AS264297	58.8% (10 lost)
Aug 31, 13:24 UTC	80	*	AS61870	100.0% (6 lost)
Aug 31, 13:24 UTC	70	*	AS24499	76.2% (61 lost)
Aug 31, 13:24 UTC	80	*	AS269409	100.0% (6 lost)
Aug 31, 13:24 UTC	80	*	AS270548	100.0% (5 lost)
Aug 31, 13:24 UTC	70	*	AS270836	71.4% (5 lost)
Aug 31, 13:24 UTC	70	*	AS263888	57.1% (8 lost)
Aug 31, 13:24 UTC	80	*	AS262945	100.0% (5 lost)
Aug 31, 13:24 UTC	80	*	AS267451	100.0% (7 lost)
Aug 31, 13:24 UTC	70	*	AS133066	72.7% (8 lost)
Aug 31, 13:24 UTC	80	*	AS49472	100.0% (8 lost)
Aug 31, 13:24 UTC	80	*	AS34718	84.2% (16 lost)
Aug 31, 13:24 UTC	80	*	AS207266	100.0% (83 lost)
Aug 31, 13:24 UTC	70	*	AS28605	43.8% (7 lost)
Aug 31, 13:24 UTC	80	*	AS59257	38.9% (72 lost)
Aug 31, 13:24 UTC	80	*	AS28584	94.7% (18 lost)
Aug 31, 13:24 UTC	80	*	AS269234	100.0% (5 lost)
Aug 31, 13:24 UTC	70	*	AS32829	45.5% (5 lost)
Aug 31, 13:09 UTC	70	*	AS16019	48.9% (44 lost)
Aug 31, 13:09 UTC	70	*	AS28327	54.3% (19 lost)
Aug 31, 13:09 UTC	80	*	AS28627	94.4% (17 lost)
Aug 31, 13:09 UTC	80	*	AS263041	100.0% (5 lost)
Aug 31, 13:09 UTC	80	*	AS268836	83.3% (5 lost)
Aug 31, 13:09 UTC	70	*	AS263549	50.0% (5 lost)
Aug 31, 13:09 UTC	70	*	AS8193	36.7% (33 lost)
Aug 31, 13:09 UTC	70	*	AS59668	70.0% (7 lost)
Aug 31, 13:09 UTC	70	*	AS140952	40.0% (6 lost)
Aug 31, 13:09 UTC	80	*	AS264411	100.0% (7 lost)
Aug 31, 13:09 UTC	70	*	AS52971	38.1% (8 lost)
Aug 31, 13:09 UTC	80	*	AS28233	82.8% (24 lost)
Aug 31, 13:09 UTC	70	*	AS197350	48.7% (19 lost)
Aug 31, 13:09 UTC	80	*	AS58254	100.0% (7 lost)
Aug 31, 13:09 UTC	70	*	AS138322	33.3% (10 lost)
Aug 31, 13:09 UTC	80	*	AS28358	88.9% (8 lost)
Aug 31, 13:09 UTC	70	*	AS265432	55.6% (5 lost)
Aug 31, 13:09 UTC	70	*	AS262493	50.0% (8 lost)
Aug 31, 13:09 UTC	70	*	AS48431	50.0% (5 lost)
Aug 31, 13:09 UTC	70	*	AS268257	63.6% (7 lost)
Aug 31, 13:09 UTC	70	*	AS28366	78.8% (26 lost)
Aug 31, 13:09 UTC	70	*	AS3480	66.7% (6 lost)
Aug 31, 13:09 UTC	80	*	AS44027	100.0% (7 lost)
Aug 31, 13:09 UTC	80	*	AS28910	100.0% (5 lost)
Aug 31, 13:09 UTC	80	*	AS264221	100.0% (9 lost)
Aug 31, 13:09 UTC	80	*	AS50025	100.0% (8 lost)
Aug 31, 13:09 UTC	80	*	AS205640	100.0% (10 lost)
Aug 31, 13:09 UTC	80	*	AS31203	100.0% (16 lost)
Aug 31, 13:09 UTC	70	*	AS12365	63.2% (12 lost)
Aug 31, 13:09 UTC	80	*	AS52851	100.0% (5 lost)
Aug 31, 13:09 UTC	70	*	AS262822	34.8% (8 lost)
Aug 31, 13:09 UTC	80	*	AS43533	100.0% (13 lost)
Aug 31, 13:09 UTC	80	*	AS21928	43.8% (124 lost)
Aug 31, 13:09 UTC	80	*	AS264063	100.0% (5 lost)
Aug 31, 13:09 UTC	80	*	AS263585	100.0% (17 lost)
Aug 31, 13:09 UTC	70	*	AS263382	80.0% (12 lost)
Aug 31, 13:09 UTC	80	*	AS265127	100.0% (5 lost)
Aug 31, 13:09 UTC	80	*	AS268264	100.0% (5 lost)
Aug 31, 13:09 UTC	70	*	AS270353	72.7% (8 lost)
Aug 31, 13:09 UTC	70	*	AS43060	38.5% (5 lost)
Aug 31, 13:09 UTC	70	*	AS265369	58.3% (7 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 2026-08-31 13:45 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.