Route changes on 2026-11-03

Changes found when comparing the global BGP routing table on 2026-11-03 (UTC): IP prefixes that moved to another ASN, were announced for the first time, gained an extra origin, or were withdrawn from the table.

Origin change: 0; That day · filtered
New announcement: 2; That day · filtered
Origin added: 0; That day · filtered
Withdrawal: 5; That day · filtered

Routing data · Nov 11, 2026, 18:22 UTC

WithdrawalClear filters

CountryIP versionASN

Detected (UTC)	Prefix	Change	ASN	Name	Previous ASN	Country
18:23	212.166.44.0/24	Withdrawal	AS9208	WIN	—	Belgium
02:26	2a13:9500:48::/48	WithdrawalAnnounced again	AS209552	Siroky Network Solutions , BE	—	Belgium
02:26	2a0b:4e07:2d::/48	WithdrawalAnnounced again	AS209552	Siroky Network Solutions , BE	—	Belgium
02:26	2a06:de01:c2::/48	WithdrawalAnnounced again	AS209552	Siroky Network Solutions , BE	—	Belgium
02:26	213.158.84.0/24	Withdrawal	AS34762	Combell	—	Belgium

By day

Origin change
New announcement
Origin added

Prefixes with a new ASN on each of the last 7 days, excluding withdrawals. Select a date to see all of that day’s changes. Another 1,161 changes are waiting for confirmation at the next comparison.

IP address ASN history

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How monitoring works

Every 2 hours ASNBase takes the bgp.tools global routing table (prefix → origin ASN) and compares it with the previous one. The detected time is the time of that comparison; the actual change can be up to about 2 hours earlier.
Only routes seen by more than 100 bgp.tools peers are listed as changes; routes with less visibility are only kept in the history.
A new announcement counts only if it is still in the next routing table, and a withdrawal only if the prefix is missing from two tables in a row, so short flaps are ignored.
ASNBase has been monitoring since 2026-10-19. “Before monitoring” under “First seen” means the route was already announced when monitoring started; the earlier date is unknown.
Prefixes first seen during the first day of monitoring do not count as new announcements: most of them were simply missing from the table at the moment monitoring started.
Countries and regions follow the ASN’s registration, not the actual location of the IP addresses.