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Amazon.com, Inc. (AS16509) · US allocation
| IP address | ASN | Network | Reverse DNS | Allocation country |
|---|---|---|---|---|
| 54.72.12.251 | AS16509 AMAZON-02 - Amazon.com, Inc. | Amazon.com, Inc. 54.72.0.0/16 | ec2-54-72-12-251.eu-west-1.compute.amazonaws.com | US |
| 40.181.0.35 | AS16509 AMAZON-02 - Amazon.com, Inc. | Amazon.com, Inc. 40.181.0.0/16 | ec2-40-181-0-35.eu-west-1.compute.amazonaws.com | US |
| 2a05:d018:12d2:8901:1c55:1f2c:c5b3:9ea9 | AS16509 AMAZON-02 - Amazon.com, Inc. | EC2-Aggregate 2a05:d018:1000::/36 | — | IE |
| 2a05:d018:12d2:8900:71a:3821:8aa0:cb9 | AS16509 AMAZON-02 - Amazon.com, Inc. | EC2-Aggregate 2a05:d018:1000::/36 | — | IE |
This address belongs to a CDN or proxy network. It is not the origin server, and the allocation country is not the server's physical location.
LiveSource: Team Cymru IP-to-ASN (DNS) · IP RDAP · PTRObserved:
The lookup resolves the A and AAAA records of the hostname you enter and lists every address returned. A domain can have several addresses for load balancing or redundancy, and may return different ones on the next query. The www hostname and the bare domain are separate names and can point to different places, so check the one you actually care about.
What this service recorded for this name on earlier checks. A check happens only when someone opens a report or calls the API: nothing is scheduled, so gaps between checks are normal.
11 checks since Oct 12, 2026, the latest on Oct 12, 2026.
No change in the recorded values across 11 checks.
The history is kept for the domain name only; nothing about who looked it up is stored. Entries not seen again for 400 days are deleted. Changing A, AAAA and hosting values are normal for sites behind load balancers or content delivery networks.
Fixed points of reference, not rankings. Each line says what the value is compared with and where it came from.