184.176.0.0/12

Currently announced by AS22773 Cox Communications, in the routed prefix 184.176.0.0/12.

Current ASN: AS22773; Cox Communications
Routed prefix: 184.176.0.0/12; Most specific route covering this prefix
ASNs over time: 1; 1 announcement record
RIR allocation: ARIN; United States · 184.176.0.0/12

Routing data · Oct 23, 2026, 22:20 UTC

ASN historyEvery routed prefix covering 184.176.0.0/12

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
184.176.0.0/12	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing

More specific routes825 total, showing the first 200

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
184.176.1.0/24	AS54385	City of Tolleson	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.16.0/20	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.32.0/21	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.40.0/21	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.52.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.56.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.60.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.64.0/18	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.64.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.68.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.72.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.74.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.76.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.82.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.84.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.85.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.86.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.87.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.88.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.90.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.91.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.92.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.93.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.94.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.95.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.96.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.98.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.100.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.104.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.106.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.108.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.112.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.114.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.116.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.118.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.124.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.126.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.127.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.128.0/19	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.160.0/21	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.168.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.172.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.188.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.195.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.196.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.200.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.204.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.208.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.212.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.216.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.221.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.222.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.223.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.176.224.0/19	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.0.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.8.0/21	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.16.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.17.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.18.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.19.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.20.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.23.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.24.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.26.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.36.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.40.0/21	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.48.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.52.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.56.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.60.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.64.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.68.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.72.0/21	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.84.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.88.0/21	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.96.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.100.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.104.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.106.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.106.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.108.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.112.0/21	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.120.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.124.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.128.0/19	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.128.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.132.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.134.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.136.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.140.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.144.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.146.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.148.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.150.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.152.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.158.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.159.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.160.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.162.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.164.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.168.0/21	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.176.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.178.0/23	AS16436	Az Airnet	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.180.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.182.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.184.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.188.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.190.0/24	AS30523	BOK Financial Corporation	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.191.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.177.192.0/18	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.16.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.18.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.21.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.23.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.24.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.28.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.30.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.32.0/21	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.40.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.44.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.48.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.52.0/22	AS22184	IRIDIUM SATELLITE,LLC	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.52.0/24	AS22184	IRIDIUM SATELLITE,LLC	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.53.0/24	AS22184	IRIDIUM SATELLITE,LLC	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.54.0/24	AS22184	IRIDIUM SATELLITE,LLC	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.56.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.62.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.64.0/21	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.64.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.64.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.68.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.72.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.74.0/23	AS63182	RAPIDSCALE	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.79.0/24	AS36527	RINCON-WIRELESS	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.80.0/21	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.88.0/21	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.97.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.108.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.109.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.110.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.111.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.112.0/20	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.136.0/21	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.144.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.145.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.148.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.150.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.152.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.156.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.159.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.160.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.168.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.169.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.170.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.174.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.178.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.180.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.184.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.186.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.192.0/20	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.208.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.212.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.213.0/24	AS54845	Crexendo Business Solutions, Inc.	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.215.0/24	AS46787	RXLINC LLC	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.216.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.220.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.224.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.225.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.226.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.227.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.228.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.229.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.230.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.231.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.232.0/21	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.248.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.178.248.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.179.0.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.179.4.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.179.8.0/21	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.179.16.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.179.18.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.179.21.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.179.22.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.179.24.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.179.28.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.179.32.0/20	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.179.39.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.179.48.0/22	AS1819	DCM Cable Inc.	United States	Before monitoring	2026-10-23 22:20	Announcing
184.179.52.0/22	AS1819	DCM Cable Inc.	United States	Before monitoring	2026-10-23 22:20	Announcing
184.179.56.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.179.64.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.179.66.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.179.68.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.179.72.0/21	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.179.80.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.179.82.0/23	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.179.82.0/24	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.179.84.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing
184.179.96.0/22	AS22773	Cox Communications	United States	Before monitoring	2026-10-23 22:20	Announcing

Change logAll changes

The routes covering this address have had no origin changes since ASNBase started monitoring.

Look up another address

RIR allocation record

Registry: ARIN
Allocated block: 184.176.0.0/12
Country: United States
Allocation date: 2010-05-14
Status: allocated

From the RIRs’ delegated statistics files. Shows where the addresses are registered, not where they are used.

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.