52.216.128.0/19

Currently announced by AS16509 Amazon.com, in the routed prefix 52.216.128.0/19.

Current ASN: AS16509; Amazon.com
Routed prefix: 52.216.128.0/19; Most specific route covering this prefix
ASNs over time: 1; 2 announcement records
RIR allocation: ARIN; United States · 52.216.0.0/14

Routing data · Nov 8, 2026, 10:26 UTC

ASN historyEvery routed prefix covering 52.216.128.0/19

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
52.216.128.0/19	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.0.0/14	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing

More specific routes38 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
52.216.128.0/22	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.128.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.129.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.130.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.131.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.132.0/22	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.132.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.133.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.134.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.135.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.136.0/22	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.136.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.137.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.138.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.139.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.140.0/22	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.140.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.141.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.142.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.143.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.144.0/21	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.144.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.145.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.146.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.147.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.148.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.149.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.150.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.151.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.152.0/22	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.152.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.153.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.154.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.155.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.156.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.157.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.158.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	Announcing
52.216.159.0/24	AS16509	Amazon.com	United States	Before monitoring	2026-11-08 10:26	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: 52.216.0.0/14
Country: United States
Allocation date: 2015-09-02
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.