17.128.0.0/9

Currently announced by AS714 Apple Inc., in the routed prefix 17.128.0.0/9.

Current ASN: AS714; Apple Inc.
Routed prefix: 17.128.0.0/9; Most specific route covering this prefix
ASNs over time: 1; 2 announcement records
RIR allocation: ARIN; United States · 17.0.0.0/8

Routing data · Oct 23, 2026, 04:19 UTC

ASN historyEvery routed prefix covering 17.128.0.0/9

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
17.128.0.0/9	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.0.0.0/8	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing

More specific routes755 total, showing the first 200

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
17.128.0.0/19	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.128.32.0/19	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.128.64.0/19	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.129.0.0/16	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.129.48.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.129.80.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.129.96.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.129.104.0/22	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.130.128.0/22	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.130.160.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.131.0.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.131.8.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.131.16.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.131.24.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.131.32.0/19	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.131.64.0/19	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.131.96.0/22	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.131.112.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.4.0/22	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.13.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.15.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.18.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.22.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.26.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.27.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.28.0/22	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.36.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.40.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.48.0/22	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.56.0/22	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.64.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.66.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.68.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.70.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.72.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.73.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.76.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.78.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.79.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.80.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.82.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.83.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.84.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.85.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.86.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.87.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.88.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.89.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.90.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.91.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.92.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.93.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.96.0/22	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.100.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.102.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.108.0/22	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.112.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.144.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.160.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.132.176.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.133.0.0/16	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.134.0.0/22	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.134.4.0/22	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.134.8.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.134.16.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.134.32.0/19	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.134.64.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.134.80.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.134.96.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.134.112.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.134.128.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.134.144.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.134.160.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.134.180.0/22	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.134.184.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.134.192.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.134.224.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.134.240.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.135.0.0/16	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.135.0.0/17	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.136.0.0/18	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.136.128.0/22	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.136.132.0/22	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.136.136.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.136.144.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.136.160.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.136.168.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.136.170.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.136.172.0/22	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.136.176.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.136.184.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.136.192.0/22	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.136.196.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.136.198.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.136.200.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.137.0.0/16	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.138.0.0/15	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.138.128.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.138.144.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.138.160.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.138.176.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.138.192.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.138.200.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.138.200.0/22	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.138.208.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.138.224.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.138.240.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.139.0.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.139.16.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.139.17.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.139.18.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.139.18.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.139.19.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.139.20.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.139.21.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.139.22.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.139.24.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.139.32.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.139.48.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.139.64.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.139.80.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.139.88.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.139.96.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.139.98.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.139.100.0/22	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.139.104.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.139.112.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.139.128.0/17	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.140.40.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.140.42.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.140.44.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.140.45.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.140.64.0/19	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.140.80.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.140.96.0/19	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.140.128.0/17	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.141.0.0/16	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.142.0.0/15	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.144.0.0/19	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.144.32.0/19	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.145.0.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.145.16.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.145.32.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.145.48.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.145.48.0/22	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.145.64.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.145.96.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.145.112.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.145.113.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.145.114.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.145.115.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.146.0.0/22	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.146.128.0/18	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.146.192.0/18	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.152.0.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.152.16.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.152.51.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.152.140.0/22	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.152.144.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.152.152.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.152.156.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.152.158.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.152.159.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.153.1.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.153.4.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.153.19.0/24	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.154.0.0/18	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.154.64.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.154.96.0/19	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.154.128.0/19	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.154.160.0/19	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.154.192.0/19	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.155.0.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.155.8.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.155.16.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.155.32.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.155.48.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.155.64.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.155.80.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.155.128.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.155.144.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.155.160.0/19	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.155.192.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.155.208.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.155.224.0/19	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.156.0.0/16	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.156.96.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.156.98.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.156.102.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.156.104.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.156.106.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.156.112.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.156.124.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.156.126.0/23	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.156.128.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.156.176.0/20	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.156.192.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.156.200.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.156.208.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	Announcing
17.156.216.0/21	AS714	Apple Inc.	United States	Before monitoring	2026-10-23 04:19	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: 17.0.0.0/8
Country: United States
Allocation date: 1990-04-16
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.