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

210

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Aug 15, 04:48 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 210 · last 24h

Most recent Sudden withdrawal event events detected across RIPE RIS collectors in the last 24 hours
When	Severity	Prefix	AS	Drop
Aug 15, 04:48 UTC	70	*	AS35640	75.0% (6 lost)
Aug 15, 04:48 UTC	70	*	AS147060	62.5% (10 lost)
Aug 15, 04:48 UTC	70	*	AS139659	46.8% (44 lost)
Aug 15, 04:48 UTC	70	*	AS216211	60.0% (6 lost)
Aug 15, 04:48 UTC	70	*	AS262504	40.0% (10 lost)
Aug 15, 04:48 UTC	70	*	AS50698	66.7% (6 lost)
Aug 15, 04:48 UTC	70	*	AS154321	74.7% (65 lost)
Aug 15, 04:48 UTC	70	*	AS262825	66.7% (6 lost)
Aug 15, 04:48 UTC	70	*	AS56400	54.5% (6 lost)
Aug 15, 04:48 UTC	70	*	AS50009	66.7% (8 lost)
Aug 15, 04:48 UTC	80	*	AS38511	60.4% (306 lost)
Aug 15, 04:48 UTC	80	*	AS271420	85.7% (6 lost)
Aug 15, 04:48 UTC	80	*	AS265035	100.0% (5 lost)
Aug 15, 04:48 UTC	70	*	AS206945	50.0% (5 lost)
Aug 15, 04:48 UTC	80	*	AS148987	100.0% (8 lost)
Aug 15, 04:48 UTC	70	*	AS44050	80.0% (80 lost)
Aug 15, 04:48 UTC	70	*	AS198721	63.2% (12 lost)
Aug 15, 04:48 UTC	80	*	AS34058	52.7% (88 lost)
Aug 15, 04:48 UTC	70	*	AS134365	48.5% (16 lost)
Aug 15, 04:48 UTC	80	*	AS4628	48.5% (272 lost)
Aug 15, 04:48 UTC	80	*	AS50577	83.3% (10 lost)
Aug 15, 04:48 UTC	70	*	AS12700	57.1% (8 lost)
Aug 15, 04:48 UTC	80	*	AS43709	85.7% (6 lost)
Aug 15, 04:48 UTC	70	*	AS59780	50.0% (6 lost)
Aug 15, 04:48 UTC	70	*	AS201603	60.0% (6 lost)
Aug 15, 04:48 UTC	70	*	AS47546	71.4% (5 lost)
Aug 15, 04:48 UTC	70	*	AS4818	61.5% (8 lost)
Aug 15, 04:48 UTC	70	*	AS43142	50.0% (7 lost)
Aug 15, 04:48 UTC	80	*	AS5384	71.5% (258 lost)
Aug 15, 04:48 UTC	70	*	AS18018	57.1% (12 lost)
Aug 15, 04:48 UTC	70	*	AS60989	42.9% (6 lost)
Aug 15, 04:48 UTC	70	*	AS51500	47.8% (11 lost)
Aug 15, 04:48 UTC	80	*	AS137951	41.5% (59 lost)
Aug 15, 04:48 UTC	70	*	AS30833	66.7% (6 lost)
Aug 15, 04:48 UTC	70	*	AS59665	80.0% (8 lost)
Aug 15, 04:48 UTC	70	*	AS28173	49.2% (31 lost)
Aug 15, 04:48 UTC	70	*	AS28183	40.0% (22 lost)
Aug 15, 04:48 UTC	70	*	AS39199	80.0% (8 lost)
Aug 15, 04:48 UTC	70	*	AS197133	34.6% (9 lost)
Aug 15, 04:48 UTC	80	*	AS12041	30.8% (70 lost)
Aug 15, 04:48 UTC	80	*	AS24492	60.9% (67 lost)
Aug 15, 04:48 UTC	80	*	AS24570	100.0% (6 lost)
Aug 15, 04:48 UTC	80	*	AS147019	97.7% (42 lost)
Aug 15, 04:48 UTC	70	*	AS262497	51.6% (16 lost)
Aug 15, 04:48 UTC	70	*	AS35539	62.5% (10 lost)
Aug 15, 04:48 UTC	70	*	AS62166	57.1% (8 lost)
Aug 15, 04:48 UTC	70	*	AS60316	40.0% (6 lost)
Aug 15, 04:48 UTC	80	*	AS49403	86.4% (19 lost)
Aug 15, 04:48 UTC	80	*	AS210482	90.9% (10 lost)
Aug 15, 04:48 UTC	70	*	AS48293	78.3% (18 lost)
Aug 15, 04:48 UTC	70	*	AS204832	41.7% (5 lost)
Aug 15, 04:48 UTC	70	*	AS202204	48.4% (15 lost)
Aug 15, 04:48 UTC	70	*	AS199324	72.7% (8 lost)
Aug 15, 04:48 UTC	70	*	AS53196	70.6% (12 lost)
Aug 15, 04:48 UTC	70	*	AS24232	46.2% (6 lost)
Aug 15, 04:48 UTC	70	*	AS265973	51.4% (18 lost)
Aug 15, 04:48 UTC	70	*	AS265279	57.1% (12 lost)
Aug 15, 04:48 UTC	70	*	AS49542	50.0% (11 lost)
Aug 15, 04:48 UTC	70	*	AS9785	35.3% (6 lost)
Aug 15, 04:48 UTC	70	*	AS17983	41.2% (7 lost)
Aug 15, 04:48 UTC	80	*	AS263641	85.0% (17 lost)
Aug 15, 04:48 UTC	70	*	AS264461	66.7% (6 lost)
Aug 15, 04:48 UTC	70	*	AS28227	52.2% (12 lost)
Aug 15, 04:48 UTC	90	*	AS35807	90.2% (277 lost)
Aug 15, 04:48 UTC	80	*	AS202024	100.0% (17 lost)
Aug 15, 04:48 UTC	70	*	AS138089	44.0% (11 lost)
Aug 15, 04:48 UTC	70	*	AS50130	66.7% (16 lost)
Aug 15, 04:48 UTC	80	*	AS134729	100.0% (72 lost)
Aug 15, 04:48 UTC	70	*	AS50780	43.8% (7 lost)
Aug 15, 04:48 UTC	80	*	AS59637	85.7% (12 lost)
Aug 15, 04:48 UTC	70	*	AS133772	37.0% (20 lost)
Aug 15, 04:48 UTC	70	*	AS262582	55.6% (20 lost)
Aug 15, 04:48 UTC	80	*	AS17501	75.6% (155 lost)
Aug 15, 04:48 UTC	70	*	AS24544	47.8% (11 lost)
Aug 15, 04:48 UTC	70	*	AS16019	48.9% (44 lost)
Aug 15, 04:48 UTC	70	*	AS131151	58.8% (10 lost)
Aug 15, 04:48 UTC	80	*	AS148990	100.0% (12 lost)
Aug 15, 04:48 UTC	70	*	AS4546	31.1% (14 lost)
Aug 15, 04:48 UTC	70	*	AS21309	33.9% (19 lost)
Aug 15, 04:48 UTC	80	*	AS215721	100.0% (6 lost)
Aug 15, 04:48 UTC	70	*	AS38042	63.0% (17 lost)
Aug 15, 04:33 UTC	80	*	AS7821	100.0% (17 lost)
Aug 15, 04:33 UTC	70	*	AS138156	40.0% (6 lost)
Aug 15, 04:33 UTC	90	*	AS48434	95.2% (520 lost)
Aug 15, 04:33 UTC	70	*	AS33891	70.0% (7 lost)
Aug 15, 04:33 UTC	70	*	AS207266	48.2% (40 lost)
Aug 15, 04:33 UTC	70	*	AS43648	38.1% (8 lost)
Aug 15, 04:33 UTC	80	*	AS50673	59.0% (105 lost)
Aug 15, 04:33 UTC	70	*	AS263888	57.1% (8 lost)
Aug 15, 04:33 UTC	70	*	AS39719	52.6% (10 lost)
Aug 15, 04:33 UTC	70	*	AS41497	30.8% (8 lost)
Aug 15, 04:33 UTC	80	*	AS28949	100.0% (17 lost)
Aug 15, 04:33 UTC	70	*	AS209137	57.1% (8 lost)
Aug 15, 04:33 UTC	80	*	AS51407	60.9% (168 lost)
Aug 15, 04:33 UTC	70	*	AS62468	34.4% (22 lost)
Aug 15, 04:33 UTC	70	*	AS401615	53.3% (8 lost)
Aug 15, 04:33 UTC	80	*	AS55933	35.2% (101 lost)
Aug 15, 04:18 UTC	70	*	AS35575	41.7% (15 lost)
Aug 15, 04:18 UTC	70	*	AS35826	54.5% (6 lost)
Aug 15, 04:18 UTC	70	*	AS262565	46.2% (6 lost)
Aug 15, 04:18 UTC	80	*	AS14920	100.0% (11 lost)
Aug 15, 04:18 UTC	70	*	AS44521	57.1% (8 lost)
Aug 15, 04:18 UTC	90	*	AS47331	82.4% (131 lost)
Aug 15, 04:18 UTC	70	*	AS133865	57.7% (15 lost)
Aug 15, 04:18 UTC	70	*	AS199284	57.1% (12 lost)
Aug 15, 04:18 UTC	80	*	AS58789	100.0% (10 lost)
Aug 15, 04:18 UTC	80	*	AS63168	100.0% (5 lost)
Aug 15, 04:18 UTC	70	*	AS31747	34.6% (9 lost)
Aug 15, 04:18 UTC	70	*	AS39960	33.3% (10 lost)
Aug 15, 04:18 UTC	70	*	AS210258	80.0% (8 lost)
Aug 15, 04:18 UTC	80	*	AS55547	39.7% (81 lost)
Aug 15, 04:18 UTC	80	*	AS51597	83.3% (10 lost)
Aug 15, 04:18 UTC	70	*	AS149175	54.3% (38 lost)
Aug 15, 04:18 UTC	70	*	AS9927	40.3% (27 lost)
Aug 15, 04:18 UTC	80	*	AS15502	74.4% (131 lost)
Aug 15, 04:18 UTC	70	*	AS45644	53.8% (7 lost)
Aug 15, 04:18 UTC	70	*	AS38444	47.7% (31 lost)
Aug 15, 04:18 UTC	80	*	AS136803	100.0% (5 lost)
Aug 15, 04:18 UTC	70	*	AS41362	61.5% (8 lost)
Aug 15, 04:18 UTC	80	*	AS18801	85.7% (6 lost)
Aug 15, 04:18 UTC	80	*	AS39370	90.0% (9 lost)
Aug 15, 04:18 UTC	70	*	AS40026	50.0% (5 lost)
Aug 15, 04:18 UTC	70	*	AS328638	66.7% (14 lost)
Aug 15, 04:18 UTC	70	*	AS25655	41.7% (5 lost)
Aug 15, 04:18 UTC	70	*	AS51622	66.7% (10 lost)
Aug 15, 04:18 UTC	70	*	AS36905	31.2% (5 lost)
Aug 15, 04:18 UTC	70	*	AS7163	64.0% (16 lost)
Aug 15, 04:18 UTC	70	*	AS11985	47.6% (10 lost)
Aug 15, 04:18 UTC	70	*	AS327926	60.0% (9 lost)
Aug 15, 04:18 UTC	70	*	AS41435	62.5% (10 lost)
Aug 15, 04:18 UTC	80	*	AS131232	100.0% (5 lost)
Aug 15, 04:18 UTC	70	*	AS61373	57.1% (12 lost)
Aug 15, 04:18 UTC	70	*	AS61159	70.0% (7 lost)
Aug 15, 04:18 UTC	70	*	AS27482	41.2% (14 lost)
Aug 15, 04:18 UTC	70	*	AS31725	61.5% (8 lost)
Aug 15, 04:18 UTC	70	*	AS57800	57.1% (8 lost)
Aug 15, 04:18 UTC	70	*	AS42510	64.7% (11 lost)
Aug 15, 04:18 UTC	70	*	AS28876	46.2% (6 lost)
Aug 15, 04:18 UTC	80	*	AS16378	94.1% (16 lost)
Aug 15, 04:18 UTC	70	*	AS207234	72.7% (8 lost)
Aug 15, 04:18 UTC	70	*	AS42905	50.0% (8 lost)
Aug 15, 04:18 UTC	80	*	AS4249	39.6% (95 lost)
Aug 15, 04:18 UTC	80	*	AS138559	100.0% (6 lost)
Aug 15, 04:18 UTC	70	*	AS197039	63.6% (14 lost)
Aug 15, 04:18 UTC	70	*	AS18434	40.0% (38 lost)
Aug 15, 04:18 UTC	80	*	AS202161	100.0% (14 lost)
Aug 15, 04:18 UTC	80	*	AS56478	49.1% (53 lost)
Aug 15, 04:18 UTC	70	*	AS31158	66.7% (6 lost)
Aug 15, 04:18 UTC	70	*	AS23881	41.4% (29 lost)
Aug 15, 04:18 UTC	70	*	AS9474	41.2% (7 lost)
Aug 15, 04:03 UTC	70	*	AS8257	38.5% (5 lost)
Aug 15, 04:03 UTC	70	*	AS31272	54.8% (23 lost)
Aug 15, 04:03 UTC	70	*	AS48326	35.7% (5 lost)
Aug 15, 04:03 UTC	70	*	AS36864	42.9% (6 lost)
Aug 15, 04:03 UTC	70	*	AS31252	45.1% (37 lost)
Aug 15, 04:03 UTC	80	*	AS204080	100.0% (5 lost)
Aug 15, 04:03 UTC	70	*	AS25189	78.6% (11 lost)
Aug 15, 04:03 UTC	80	*	AS41201	98.0% (96 lost)
Aug 15, 04:03 UTC	90	*	AS207590	98.1% (255 lost)
Aug 15, 04:03 UTC	70	*	AS42387	60.7% (17 lost)
Aug 15, 04:03 UTC	70	*	AS15958	58.3% (7 lost)
Aug 15, 04:03 UTC	70	*	AS208800	39.1% (9 lost)
Aug 15, 04:03 UTC	70	*	AS265175	37.1% (26 lost)
Aug 15, 04:03 UTC	70	*	AS13246	50.0% (5 lost)
Aug 15, 04:03 UTC	80	*	AS57433	91.7% (11 lost)
Aug 15, 04:03 UTC	80	*	AS1680	50.0% (59 lost)
Aug 15, 04:03 UTC	70	*	AS24875	46.2% (6 lost)
Aug 15, 04:03 UTC	70	*	AS201706	35.9% (14 lost)
Aug 15, 03:48 UTC	70	*	AS35745	56.2% (9 lost)
Aug 15, 03:48 UTC	70	*	AS201019	75.0% (6 lost)
Aug 15, 03:48 UTC	70	*	AS12654	41.7% (10 lost)
Aug 15, 03:48 UTC	80	*	AS196883	88.9% (8 lost)
Aug 15, 03:48 UTC	70	*	AS42910	30.0% (24 lost)
Aug 15, 03:48 UTC	70	*	AS58321	77.8% (14 lost)
Aug 15, 03:48 UTC	70	*	AS264562	35.0% (14 lost)
Aug 15, 03:48 UTC	70	*	AS44061	66.7% (8 lost)
Aug 15, 03:48 UTC	80	*	AS201966	100.0% (7 lost)
Aug 15, 03:48 UTC	70	*	AS28327	54.3% (19 lost)
Aug 15, 03:48 UTC	70	*	AS29522	65.5% (19 lost)
Aug 15, 03:48 UTC	80	*	AS207668	100.0% (7 lost)
Aug 15, 03:48 UTC	70	*	AS41297	66.7% (8 lost)
Aug 15, 03:48 UTC	70	*	AS140952	40.0% (6 lost)
Aug 15, 03:48 UTC	80	*	AS198317	84.4% (38 lost)
Aug 15, 03:48 UTC	70	*	AS29596	78.6% (33 lost)
Aug 15, 03:48 UTC	70	*	AS198187	60.0% (18 lost)
Aug 15, 03:48 UTC	80	*	AS47901	100.0% (8 lost)
Aug 15, 03:48 UTC	80	*	AS20552	80.8% (21 lost)
Aug 15, 03:48 UTC	70	*	AS39582	76.9% (10 lost)
Aug 15, 03:48 UTC	70	*	AS200539	61.5% (8 lost)
Aug 15, 03:48 UTC	70	*	AS28178	59.1% (13 lost)
Aug 15, 03:48 UTC	80	*	AS27759	43.6% (71 lost)
Aug 15, 03:48 UTC	80	*	AS41421	92.6% (25 lost)
Aug 15, 03:48 UTC	70	*	AS47702	36.4% (8 lost)
Aug 15, 03:48 UTC	70	*	AS202050	35.7% (5 lost)
Aug 15, 03:37 UTC	70	*	AS7768	57.1% (8 lost)
Aug 15, 03:37 UTC	70	*	AS269986	66.7% (6 lost)
Aug 15, 03:37 UTC	80	*	AS266185	100.0% (7 lost)
Aug 15, 03:37 UTC	80	*	AS203290	100.0% (6 lost)
Aug 15, 03:37 UTC	70	*	AS56582	47.8% (22 lost)
Aug 15, 03:37 UTC	80	*	AS265091	83.3% (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 2026-08-15 04:50 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.