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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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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 3,176 · last 24h
Most recent Sudden withdrawal event events detected across RIPE RIS collectors in the last 24 hours
When Severity Prefix AS
Aug 30, 10:09 UTC 80 * AS45459
Aug 30, 10:09 UTC 70 * AS264617
Aug 30, 10:09 UTC 80 * AS136255
Aug 30, 10:09 UTC 80 * AS16637
Aug 30, 10:09 UTC 70 * AS17539
Aug 30, 10:09 UTC 70 * AS26311
Aug 30, 10:09 UTC 80 * AS59362
Aug 30, 10:09 UTC 80 * AS17119
Aug 30, 10:09 UTC 80 * AS205025
Aug 30, 10:09 UTC 70 * AS153038
Aug 30, 10:09 UTC 80 * AS328191
Aug 30, 10:09 UTC 70 * AS19740
Aug 30, 10:09 UTC 80 * AS207459
Aug 30, 10:09 UTC 70 * AS48737
Aug 30, 10:09 UTC 70 * AS21527
Aug 30, 10:09 UTC 80 * AS53813
Aug 30, 10:09 UTC 80 * AS201678
Aug 30, 10:09 UTC 80 * AS28909
Aug 30, 10:09 UTC 80 * AS262256
Aug 30, 10:09 UTC 80 * AS20649
Aug 30, 10:09 UTC 80 * AS196954
Aug 30, 10:09 UTC 80 * AS9541
Aug 30, 10:09 UTC 70 * AS24556
Aug 30, 10:09 UTC 70 * AS42428
Aug 30, 10:09 UTC 70 * AS5087
Aug 30, 10:09 UTC 80 * AS2734
Aug 30, 10:09 UTC 80 * AS44947
Aug 30, 10:09 UTC 90 * AS18059
Aug 30, 10:09 UTC 80 * AS38513
Aug 30, 10:09 UTC 70 * AS45960
Aug 30, 10:09 UTC 70 * AS36958
Aug 30, 10:09 UTC 80 * AS132347
Aug 30, 10:09 UTC 80 * AS6939
Aug 30, 10:09 UTC 80 * AS7821
Aug 30, 10:09 UTC 70 * AS22006
Aug 30, 10:09 UTC 80 * AS22168
Aug 30, 10:09 UTC 70 * AS43289
Aug 30, 10:09 UTC 80 * AS32694
Aug 30, 10:09 UTC 70 * AS61468
Aug 30, 10:09 UTC 80 * AS18450
Aug 30, 10:09 UTC 70 * AS216300
Aug 30, 10:09 UTC 70 * AS32329
Aug 30, 10:09 UTC 80 * AS38932
Aug 30, 10:09 UTC 70 * AS42868
Aug 30, 10:09 UTC 70 * AS133606
Aug 30, 10:09 UTC 70 * AS209847
Aug 30, 10:09 UTC 80 * AS131293
Aug 30, 10:09 UTC 80 * AS15267
Aug 30, 10:09 UTC 80 * AS20141
Aug 30, 10:09 UTC 80 * AS29787
Aug 30, 10:09 UTC 80 * AS45634
Aug 30, 10:09 UTC 80 * AS141031
Aug 30, 10:09 UTC 70 * AS20598
Aug 30, 10:09 UTC 80 * AS72
Aug 30, 10:09 UTC 80 * AS134146
Aug 30, 10:09 UTC 80 * AS5384
Aug 30, 10:09 UTC 80 * AS202024
Aug 30, 10:09 UTC 70 * AS55699
Aug 30, 10:09 UTC 70 * AS557
Aug 30, 10:09 UTC 70 * AS48728
Aug 30, 10:09 UTC 70 * AS22423
Aug 30, 10:09 UTC 70 * AS57844
Aug 30, 10:09 UTC 70 * AS18422
Aug 30, 10:09 UTC 70 * AS24187
Aug 30, 10:09 UTC 80 * AS29802
Aug 30, 10:09 UTC 80 * AS396338
Aug 30, 10:09 UTC 80 * AS30549
Aug 30, 10:09 UTC 70 * AS133524
Aug 30, 10:09 UTC 90 * AS54483
Aug 30, 10:09 UTC 80 * AS61996
Aug 30, 10:09 UTC 90 * AS7642
Aug 30, 10:09 UTC 70 * AS41275
Aug 30, 10:09 UTC 70 * AS24389
Aug 30, 10:09 UTC 70 * AS152698
Aug 30, 10:09 UTC 80 * AS55685
Aug 30, 10:09 UTC 70 * AS63888
Aug 30, 10:09 UTC 70 * AS45754
Aug 30, 10:09 UTC 70 * AS36963
Aug 30, 10:09 UTC 70 * AS1241
Aug 30, 10:09 UTC 80 * AS48424
Aug 30, 10:09 UTC 70 * AS139009
Aug 30, 10:09 UTC 70 * AS41484
Aug 30, 10:09 UTC 70 * AS23949
Aug 30, 10:09 UTC 70 * AS14010
Aug 30, 10:09 UTC 70 * AS138640
Aug 30, 10:09 UTC 80 * AS132298
Aug 30, 10:09 UTC 80 * AS19605
Aug 30, 10:09 UTC 70 * AS24523
Aug 30, 10:09 UTC 90 * AS9943
Aug 30, 10:09 UTC 80 * AS29667
Aug 30, 10:09 UTC 80 * AS200000
Aug 30, 10:09 UTC 80 * AS23678
Aug 30, 10:09 UTC 80 * AS56030
Aug 30, 10:09 UTC 70 * AS30325
Aug 30, 10:09 UTC 80 * AS58404
Aug 30, 10:09 UTC 70 * AS41079
Aug 30, 10:09 UTC 80 * AS38200
Aug 30, 10:09 UTC 70 * AS53340
Aug 30, 10:09 UTC 70 * AS26554
Aug 30, 10:09 UTC 70 * AS17210
Aug 30, 10:09 UTC 80 * AS43533
Aug 30, 10:09 UTC 80 * AS23884
Aug 30, 10:09 UTC 70 * AS24432
Aug 30, 10:09 UTC 70 * AS22667
Aug 30, 10:09 UTC 80 * AS11666
Aug 30, 10:09 UTC 70 * AS37154
Aug 30, 10:09 UTC 70 * AS49699
Aug 30, 10:09 UTC 80 * AS53755
Aug 30, 10:09 UTC 90 * AS269782
Aug 30, 10:09 UTC 70 * AS8262
Aug 30, 10:09 UTC 80 * AS30569
Aug 30, 10:09 UTC 70 * AS141968
Aug 30, 10:09 UTC 80 * AS9335
Aug 30, 10:09 UTC 70 * AS40511
Aug 30, 10:09 UTC 80 * AS27501
Aug 30, 10:09 UTC 70 * AS48917
Aug 30, 10:09 UTC 70 * AS48452
Aug 30, 10:09 UTC 90 * AS29582
Aug 30, 10:09 UTC 80 * AS39120
Aug 30, 10:09 UTC 70 * AS16698
Aug 30, 10:09 UTC 70 * AS56167
Aug 30, 10:09 UTC 80 * AS396420
Aug 30, 10:09 UTC 70 * AS393278
Aug 30, 10:09 UTC 80 * AS12990
Aug 30, 10:09 UTC 80 * AS44851
Aug 30, 10:09 UTC 80 * AS63859
Aug 30, 10:09 UTC 80 * AS328442
Aug 30, 10:09 UTC 70 * AS36295
Aug 30, 10:09 UTC 80 * AS197897
Aug 30, 10:09 UTC 80 * AS43372
Aug 30, 10:09 UTC 80 * AS38325
Aug 30, 10:09 UTC 80 * AS51918
Aug 30, 10:09 UTC 70 * AS393950
Aug 30, 10:09 UTC 70 * AS4314
Aug 30, 10:09 UTC 90 * AS135478
Aug 30, 10:09 UTC 80 * AS40918
Aug 30, 10:09 UTC 70 * AS139820
Aug 30, 10:09 UTC 70 * AS201814
Aug 30, 10:09 UTC 80 * AS206991
Aug 30, 10:09 UTC 80 * AS262437
Aug 30, 10:09 UTC 80 * AS23422
Aug 30, 10:09 UTC 80 * AS43885
Aug 30, 10:09 UTC 70 * AS52129
Aug 30, 10:09 UTC 80 * AS23465
Aug 30, 10:09 UTC 70 * AS37410
Aug 30, 10:09 UTC 80 * AS48956
Aug 30, 10:09 UTC 80 * AS197033
Aug 30, 10:09 UTC 80 * AS45117
Aug 30, 10:09 UTC 70 * AS18988
Aug 30, 10:09 UTC 70 * AS31863
Aug 30, 10:09 UTC 70 * AS40020
Aug 30, 10:09 UTC 70 * AS22898
Aug 30, 10:09 UTC 70 * AS45245
Aug 30, 10:09 UTC 80 * AS25211
Aug 30, 10:09 UTC 80 * AS56690
Aug 30, 10:09 UTC 80 * AS55201
Aug 30, 10:09 UTC 80 * AS200239
Aug 30, 10:09 UTC 80 * AS146834
Aug 30, 10:09 UTC 70 * AS58821
Aug 30, 10:09 UTC 80 * AS45007
Aug 30, 10:09 UTC 80 * AS18001
Aug 30, 10:09 UTC 80 * AS397477
Aug 30, 10:09 UTC 80 * AS35530
Aug 30, 10:09 UTC 70 * AS6653
Aug 30, 10:09 UTC 70 * AS11096
Aug 30, 10:09 UTC 80 * AS132300
Aug 30, 10:09 UTC 70 * AS5758
Aug 30, 10:09 UTC 70 * AS134809
Aug 30, 10:09 UTC 70 * AS4049
Aug 30, 10:09 UTC 70 * AS33635
Aug 30, 10:09 UTC 70 * AS395111
Aug 30, 10:09 UTC 80 * AS137331
Aug 30, 10:09 UTC 80 * AS36374
Aug 30, 10:09 UTC 80 * AS12208
Aug 30, 10:09 UTC 70 * AS18526
Aug 30, 10:09 UTC 70 * AS29831
Aug 30, 10:09 UTC 80 * AS133613
Aug 30, 10:09 UTC 70 * AS9326
Aug 30, 10:09 UTC 80 * AS34605
Aug 30, 10:09 UTC 80 * AS395567
Aug 30, 10:09 UTC 70 * AS131207
Aug 30, 10:09 UTC 80 * AS394720
Aug 30, 10:09 UTC 80 * AS10242
Aug 30, 10:09 UTC 80 * AS134204
Aug 30, 10:09 UTC 80 * AS25147
Aug 30, 10:09 UTC 80 * AS38235
Aug 30, 10:09 UTC 80 * AS61942
Aug 30, 10:09 UTC 70 * AS40948
Aug 30, 10:09 UTC 80 * AS58717
Aug 30, 10:09 UTC 80 * AS24088
Aug 30, 10:09 UTC 90 * AS34619
Aug 30, 10:09 UTC 80 * AS16700
Aug 30, 10:09 UTC 70 * AS36100
Aug 30, 10:09 UTC 70 * AS208909
Aug 30, 10:09 UTC 70 * AS56246
Aug 30, 10:09 UTC 90 * AS58369
Aug 30, 10:09 UTC 70 * AS401307
Aug 30, 10:09 UTC 70 * AS24323
Aug 30, 10:09 UTC 80 * AS28885
Aug 30, 10:09 UTC 80 * AS8517

Frequently Asked Questions

What is a BGP 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.

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 10:20 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.

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