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

3,203

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Aug 30, 15:39 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 3,203 · last 24h

Most recent Sudden withdrawal event events detected across RIPE RIS collectors in the last 24 hours
When	Severity	Prefix	AS	Drop
Aug 30, 15:39 UTC	70	*	AS8257	53.8% (7 lost)
Aug 30, 15:39 UTC	70	*	AS61828	50.0% (7 lost)
Aug 30, 15:39 UTC	80	*	AS264235	100.0% (5 lost)
Aug 30, 15:39 UTC	80	*	AS7821	100.0% (17 lost)
Aug 30, 15:39 UTC	80	*	AS215721	100.0% (6 lost)
Aug 30, 15:39 UTC	80	*	AS264921	100.0% (5 lost)
Aug 30, 15:39 UTC	80	*	AS63168	100.0% (5 lost)
Aug 30, 15:39 UTC	80	*	AS262290	100.0% (7 lost)
Aug 30, 15:39 UTC	80	*	AS24570	100.0% (6 lost)
Aug 30, 15:39 UTC	70	*	AS210258	80.0% (8 lost)
Aug 30, 15:39 UTC	70	*	AS27482	41.2% (14 lost)
Aug 30, 15:39 UTC	70	*	AS268829	42.9% (6 lost)
Aug 30, 15:39 UTC	70	*	AS268311	42.9% (6 lost)
Aug 30, 15:39 UTC	70	*	AS40026	50.0% (5 lost)
Aug 30, 15:39 UTC	80	*	AS269329	100.0% (5 lost)
Aug 30, 15:39 UTC	70	*	AS263888	57.1% (8 lost)
Aug 30, 15:39 UTC	80	*	AS265394	100.0% (5 lost)
Aug 30, 15:39 UTC	70	*	AS44521	57.1% (8 lost)
Aug 30, 15:39 UTC	80	*	AS4249	38.0% (89 lost)
Aug 30, 15:39 UTC	70	*	AS262428	61.4% (35 lost)
Aug 30, 15:39 UTC	80	*	AS265267	85.7% (6 lost)
Aug 30, 15:39 UTC	80	*	AS147019	80.8% (42 lost)
Aug 30, 15:39 UTC	70	*	AS61373	57.1% (12 lost)
Aug 30, 15:39 UTC	70	*	AS45644	53.8% (7 lost)
Aug 30, 15:39 UTC	70	*	AS4818	53.8% (7 lost)
Aug 30, 15:39 UTC	80	*	AS264867	100.0% (7 lost)
Aug 30, 15:39 UTC	80	*	AS269705	100.0% (9 lost)
Aug 30, 15:39 UTC	70	*	AS41362	76.9% (10 lost)
Aug 30, 15:39 UTC	80	*	AS268280	83.3% (5 lost)
Aug 30, 15:39 UTC	80	*	AS211249	100.0% (9 lost)
Aug 30, 15:39 UTC	70	*	AS133772	31.5% (17 lost)
Aug 30, 15:39 UTC	70	*	AS265303	32.4% (12 lost)
Aug 30, 15:39 UTC	80	*	AS264342	100.0% (6 lost)
Aug 30, 15:39 UTC	70	*	AS61754	33.3% (5 lost)
Aug 30, 15:39 UTC	80	*	AS262669	100.0% (49 lost)
Aug 30, 15:39 UTC	70	*	AS25273	54.5% (18 lost)
Aug 30, 15:39 UTC	80	*	AS131232	100.0% (5 lost)
Aug 30, 15:39 UTC	80	*	AS134729	87.5% (63 lost)
Aug 30, 15:39 UTC	80	*	AS61704	100.0% (7 lost)
Aug 30, 15:39 UTC	70	*	AS262879	47.1% (8 lost)
Aug 30, 15:39 UTC	70	*	AS58789	66.7% (8 lost)
Aug 30, 15:39 UTC	70	*	AS18018	37.5% (9 lost)
Aug 30, 15:39 UTC	80	*	AS265142	100.0% (7 lost)
Aug 30, 15:39 UTC	70	*	AS8518	34.2% (13 lost)
Aug 30, 15:39 UTC	80	*	AS264592	85.7% (6 lost)
Aug 30, 15:39 UTC	80	*	AS52977	100.0% (7 lost)
Aug 30, 15:39 UTC	90	*	AS28201	99.6% (235 lost)
Aug 30, 15:39 UTC	70	*	AS267575	37.5% (6 lost)
Aug 30, 15:39 UTC	70	*	AS28178	72.7% (16 lost)
Aug 30, 15:39 UTC	80	*	AS265027	100.0% (7 lost)
Aug 30, 15:39 UTC	70	*	AS263035	77.8% (7 lost)
Aug 30, 15:39 UTC	70	*	AS52947	73.3% (11 lost)
Aug 30, 15:39 UTC	80	*	AS61684	85.7% (12 lost)
Aug 30, 15:39 UTC	80	*	AS262445	83.3% (5 lost)
Aug 30, 15:39 UTC	70	*	AS48326	63.6% (7 lost)
Aug 30, 15:39 UTC	70	*	AS270965	71.4% (5 lost)
Aug 30, 15:39 UTC	80	*	AS53050	100.0% (29 lost)
Aug 30, 15:39 UTC	70	*	AS327926	80.0% (12 lost)
Aug 30, 15:39 UTC	80	*	AS138559	100.0% (6 lost)
Aug 30, 15:39 UTC	70	*	AS43338	50.0% (5 lost)
Aug 30, 15:39 UTC	80	*	AS202161	100.0% (14 lost)
Aug 30, 15:39 UTC	80	*	AS41741	88.9% (8 lost)
Aug 30, 15:39 UTC	70	*	AS267174	71.4% (5 lost)
Aug 30, 15:39 UTC	70	*	AS60503	45.5% (5 lost)
Aug 30, 15:39 UTC	70	*	AS262463	39.4% (13 lost)
Aug 30, 15:39 UTC	70	*	AS28634	35.7% (5 lost)
Aug 30, 15:39 UTC	80	*	AS18801	85.7% (6 lost)
Aug 30, 15:39 UTC	80	*	AS52962	100.0% (6 lost)
Aug 30, 15:39 UTC	70	*	AS53094	31.6% (6 lost)
Aug 30, 15:39 UTC	70	*	AS266081	71.4% (5 lost)
Aug 30, 15:39 UTC	80	*	AS263574	83.3% (5 lost)
Aug 30, 15:39 UTC	80	*	AS270884	85.7% (12 lost)
Aug 30, 15:39 UTC	80	*	AS266591	100.0% (6 lost)
Aug 30, 15:39 UTC	70	*	AS52861	71.4% (10 lost)
Aug 30, 15:39 UTC	80	*	AS269114	83.3% (5 lost)
Aug 30, 15:39 UTC	80	*	AS267348	100.0% (7 lost)
Aug 30, 15:39 UTC	70	*	AS53175	42.9% (15 lost)
Aug 30, 15:39 UTC	80	*	AS262412	85.7% (6 lost)
Aug 30, 15:39 UTC	80	*	AS28202	30.3% (123 lost)
Aug 30, 15:39 UTC	80	*	AS16378	94.1% (16 lost)
Aug 30, 15:39 UTC	80	*	AS269018	100.0% (7 lost)
Aug 30, 15:39 UTC	80	*	AS263263	100.0% (13 lost)
Aug 30, 15:39 UTC	80	*	AS267117	85.7% (6 lost)
Aug 30, 15:39 UTC	80	*	AS39370	100.0% (10 lost)
Aug 30, 15:39 UTC	70	*	AS13786	62.5% (5 lost)
Aug 30, 15:39 UTC	70	*	AS31747	34.6% (9 lost)
Aug 30, 15:39 UTC	70	*	AS19723	50.0% (8 lost)
Aug 30, 15:39 UTC	70	*	AS264344	31.2% (5 lost)
Aug 30, 15:39 UTC	80	*	AS14920	100.0% (11 lost)
Aug 30, 15:39 UTC	70	*	AS28668	47.5% (19 lost)
Aug 30, 15:39 UTC	70	*	AS265279	57.1% (12 lost)
Aug 30, 15:39 UTC	70	*	AS266427	71.4% (5 lost)
Aug 30, 15:39 UTC	70	*	AS264524	55.6% (5 lost)
Aug 30, 15:39 UTC	70	*	AS201603	60.0% (6 lost)
Aug 30, 15:39 UTC	70	*	AS31490	50.0% (9 lost)
Aug 30, 15:39 UTC	80	*	AS268818	100.0% (7 lost)
Aug 30, 15:39 UTC	70	*	AS263608	35.0% (7 lost)
Aug 30, 15:39 UTC	80	*	AS266831	100.0% (5 lost)
Aug 30, 15:39 UTC	70	*	AS28327	65.7% (23 lost)
Aug 30, 15:39 UTC	80	*	AS267656	100.0% (5 lost)
Aug 30, 15:39 UTC	80	*	AS52528	100.0% (20 lost)
Aug 30, 15:39 UTC	80	*	AS264332	100.0% (7 lost)
Aug 30, 15:24 UTC	70	*	AS11228	41.7% (5 lost)
Aug 30, 15:24 UTC	80	*	AS55045	92.9% (13 lost)
Aug 30, 15:24 UTC	70	*	AS40861	32.9% (27 lost)
Aug 30, 15:24 UTC	70	*	AS30016	80.0% (8 lost)
Aug 30, 15:24 UTC	80	*	AS32524	88.2% (60 lost)
Aug 30, 15:24 UTC	70	*	AS9751	63.2% (12 lost)
Aug 30, 15:24 UTC	80	*	AS213382	42.7% (123 lost)
Aug 30, 15:24 UTC	80	*	AS36504	100.0% (9 lost)
Aug 30, 15:24 UTC	70	*	AS11676	75.6% (34 lost)
Aug 30, 15:24 UTC	70	*	AS138152	34.1% (15 lost)
Aug 30, 15:24 UTC	70	*	AS327700	51.0% (26 lost)
Aug 30, 15:24 UTC	70	*	AS399646	50.0% (15 lost)
Aug 30, 15:09 UTC	70	*	AS264114	71.4% (5 lost)
Aug 30, 15:09 UTC	80	*	AS270269	100.0% (7 lost)
Aug 30, 15:09 UTC	70	*	AS262301	40.9% (9 lost)
Aug 30, 15:09 UTC	80	*	AS262628	100.0% (5 lost)
Aug 30, 15:09 UTC	80	*	AS263155	100.0% (5 lost)
Aug 30, 15:09 UTC	80	*	AS266331	100.0% (5 lost)
Aug 30, 15:09 UTC	70	*	AS264426	52.0% (13 lost)
Aug 30, 15:09 UTC	80	*	AS16891	100.0% (7 lost)
Aug 30, 15:09 UTC	80	*	AS270723	100.0% (5 lost)
Aug 30, 15:09 UTC	80	*	AS51955	85.7% (6 lost)
Aug 30, 15:09 UTC	70	*	AS26881	46.7% (7 lost)
Aug 30, 15:09 UTC	80	*	AS265232	100.0% (7 lost)
Aug 30, 15:09 UTC	70	*	AS263579	30.6% (11 lost)
Aug 30, 15:09 UTC	80	*	AS61745	100.0% (6 lost)
Aug 30, 15:09 UTC	80	*	AS271630	100.0% (7 lost)
Aug 30, 15:09 UTC	80	*	AS270262	85.7% (6 lost)
Aug 30, 15:09 UTC	70	*	AS262565	54.5% (6 lost)
Aug 30, 15:09 UTC	80	*	AS264294	88.9% (8 lost)
Aug 30, 15:09 UTC	80	*	AS271041	100.0% (7 lost)
Aug 30, 15:09 UTC	80	*	AS262460	100.0% (7 lost)
Aug 30, 15:09 UTC	80	*	AS271640	51.2% (63 lost)
Aug 30, 15:09 UTC	80	*	AS270763	100.0% (7 lost)
Aug 30, 15:09 UTC	70	*	AS28243	55.6% (5 lost)
Aug 30, 15:09 UTC	70	*	AS263559	66.7% (6 lost)
Aug 30, 15:09 UTC	80	*	AS262947	100.0% (7 lost)
Aug 30, 15:09 UTC	80	*	AS268748	100.0% (5 lost)
Aug 30, 15:09 UTC	70	*	AS53013	36.8% (7 lost)
Aug 30, 15:09 UTC	80	*	AS52746	100.0% (8 lost)
Aug 30, 15:09 UTC	70	*	AS28278	64.3% (9 lost)
Aug 30, 15:09 UTC	80	*	AS267638	100.0% (5 lost)
Aug 30, 15:09 UTC	70	*	AS61636	50.0% (7 lost)
Aug 30, 15:09 UTC	70	*	AS263103	45.5% (5 lost)
Aug 30, 15:09 UTC	70	*	AS52473	44.4% (8 lost)
Aug 30, 15:09 UTC	80	*	AS266572	100.0% (7 lost)
Aug 30, 15:09 UTC	80	*	AS263485	100.0% (7 lost)
Aug 30, 15:09 UTC	70	*	AS262352	31.2% (5 lost)
Aug 30, 15:09 UTC	70	*	AS28227	52.2% (12 lost)
Aug 30, 15:09 UTC	70	*	AS262851	66.7% (6 lost)
Aug 30, 15:09 UTC	80	*	AS268556	100.0% (6 lost)
Aug 30, 15:09 UTC	70	*	AS61888	42.9% (6 lost)
Aug 30, 15:09 UTC	70	*	AS28177	32.1% (9 lost)
Aug 30, 15:09 UTC	80	*	AS53139	93.8% (30 lost)
Aug 30, 15:09 UTC	80	*	AS268275	100.0% (7 lost)
Aug 30, 15:09 UTC	80	*	AS269401	100.0% (5 lost)
Aug 30, 15:09 UTC	70	*	AS52967	65.5% (19 lost)
Aug 30, 15:09 UTC	80	*	AS266189	100.0% (5 lost)
Aug 30, 15:09 UTC	80	*	AS262844	82.4% (14 lost)
Aug 30, 15:09 UTC	80	*	AS271626	100.0% (7 lost)
Aug 30, 15:09 UTC	80	*	AS53043	100.0% (16 lost)
Aug 30, 15:09 UTC	70	*	AS52596	46.7% (7 lost)
Aug 30, 15:09 UTC	70	*	AS266915	50.0% (5 lost)
Aug 30, 15:09 UTC	70	*	AS28666	38.5% (5 lost)
Aug 30, 15:09 UTC	80	*	AS64053	100.0% (5 lost)
Aug 30, 15:09 UTC	70	*	AS28189	60.9% (14 lost)
Aug 30, 15:09 UTC	80	*	AS265437	85.7% (6 lost)
Aug 30, 15:09 UTC	80	*	AS271401	83.3% (5 lost)
Aug 30, 15:09 UTC	80	*	AS269500	100.0% (5 lost)
Aug 30, 15:09 UTC	80	*	AS28577	100.0% (10 lost)
Aug 30, 15:09 UTC	80	*	AS53108	100.0% (5 lost)
Aug 30, 15:09 UTC	80	*	AS273991	100.0% (5 lost)
Aug 30, 15:09 UTC	70	*	AS270724	42.9% (6 lost)
Aug 30, 15:09 UTC	80	*	AS263042	100.0% (5 lost)
Aug 30, 15:09 UTC	80	*	AS273782	100.0% (7 lost)
Aug 30, 15:09 UTC	70	*	AS263479	42.9% (6 lost)
Aug 30, 15:09 UTC	80	*	AS268186	85.7% (6 lost)
Aug 30, 15:09 UTC	80	*	AS265042	100.0% (7 lost)
Aug 30, 15:09 UTC	70	*	AS262842	46.7% (7 lost)
Aug 30, 15:09 UTC	80	*	AS267472	100.0% (7 lost)
Aug 30, 15:09 UTC	80	*	AS262496	100.0% (9 lost)
Aug 30, 15:09 UTC	80	*	AS52251	45.9% (61 lost)
Aug 30, 15:09 UTC	80	*	AS264173	100.0% (7 lost)
Aug 30, 15:09 UTC	80	*	AS271664	85.7% (6 lost)
Aug 30, 15:09 UTC	70	*	AS42707	55.6% (15 lost)
Aug 30, 15:09 UTC	80	*	AS264166	100.0% (5 lost)
Aug 30, 15:09 UTC	80	*	AS207266	100.0% (83 lost)
Aug 30, 15:09 UTC	80	*	AS52965	50.8% (65 lost)
Aug 30, 15:09 UTC	80	*	AS273371	100.0% (5 lost)
Aug 30, 15:09 UTC	80	*	AS263031	100.0% (7 lost)
Aug 30, 15:09 UTC	70	*	AS61713	50.0% (5 lost)
Aug 30, 15:09 UTC	70	*	AS28576	46.2% (6 lost)
Aug 30, 15:09 UTC	80	*	AS52564	85.0% (17 lost)
Aug 30, 15:09 UTC	80	*	AS52565	100.0% (38 lost)
Aug 30, 15:09 UTC	70	*	AS23106	64.3% (18 lost)
Aug 30, 15:09 UTC	80	*	AS28333	100.0% (15 lost)
Aug 30, 15:09 UTC	80	*	AS263137	100.0% (8 lost)
Aug 30, 15:09 UTC	80	*	AS267077	100.0% (5 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 2026-08-30 15:50 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.