Route changes on 2026-11-01

Changes found when comparing the global BGP routing table on 2026-11-01 (UTC): IP prefixes that moved to another ASN, were announced for the first time, gained an extra origin, or were withdrawn from the table.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: 23; That day · filtered
Origin added: 0; That day · filtered
Withdrawal: 21; That day · filtered

Routing data · Nov 1, 2026, 16:26 UTC

WithdrawalClear filters

Detected (UTC)	Prefix	Change	ASN	Name	Previous ASN	Country
10:25	91.133.222.0/24	Withdrawal	AS197207	Mobile Communication Company of Iran	—	Iran
10:25	5.215.230.0/24	Withdrawal	AS197207	Mobile Communication Company of Iran	—	Iran
10:25	5.126.115.0/24	Withdrawal	AS44244	IranCell-AS	—	Iran
10:25	5.124.197.0/24	Withdrawal	AS44244	IranCell-AS	—	Iran
10:25	5.124.151.0/24	Withdrawal	AS44244	IranCell-AS	—	Iran
10:25	5.123.35.0/24	Withdrawal	AS44244	IranCell-AS	—	Iran
10:25	5.123.236.0/24	Withdrawal	AS44244	IranCell-AS	—	Iran
10:25	5.122.231.0/24	Withdrawal	AS44244	IranCell-AS	—	Iran
10:25	5.121.179.0/24	Withdrawal	AS44244	IranCell-AS	—	Iran
10:25	5.120.172.0/24	Withdrawal	AS44244	IranCell-AS	—	Iran
10:25	185.215.155.0/24	Withdrawal	AS205490	rai	—	Iran
06:24	204.18.115.0/24	Withdrawal	AS197207	Mobile Communication Company of Iran	—	Iran
06:24	185.215.154.0/24	Withdrawal	AS205490	rai	—	Iran
06:24	185.215.154.0/23	Withdrawal	AS205490	rai	—	Iran
06:24	185.215.153.0/24	Withdrawal	AS205490	rai	—	Iran
06:24	185.215.152.0/24	Withdrawal	AS205490	rai	—	Iran
06:24	185.215.152.0/23	Withdrawal	AS205490	rai	—	Iran
02:25	89.199.133.0/24	Withdrawal	AS197207	Mobile Communication Company of Iran	—	Iran
02:25	5.125.57.0/24	Withdrawal	AS44244	IranCell-AS	—	Iran
02:25	5.122.106.0/24	Withdrawal	AS44244	IranCell-AS	—	Iran
02:25	5.120.101.0/24	Withdrawal	AS44244	IranCell-AS	—	Iran

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 350 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.