WWW.RTSAK.COM - 4.21.221.18.in-addr.arpa

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4.21.221.18.in-addr.arpa checked at 2025-10-06T12:36:43.464Z 89ms 16/16/16 100% R:9

`4.21.221.18.in-addr.arpa`

PTR	`ec2-18-221-21-4.us-east-2.compute.amazonaws.com`
		A	18.221.21.4^{🇺🇸 Amazon}
			PTR	`ec2-18-221-21-4.us-east-2.compute.amazonaws.com`

`21.221.18.in-addr.arpa`

	NS	`ns1-24-us-east-2.ec2-rdns.amazonaws.com`
	NS	`ns2-24-us-east-2.ec2-rdns.amazonaws.com`
	NS	`ns3-24-us-east-2.ec2-rdns.amazonaws.com`
	NS	`ns4-24-us-east-2.ec2-rdns.amazonaws.com`

Starts with same word

4.s3-website-us-east-1.amazonaws.com

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4.s3.eu-central-1.amazonaws.com

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4.uy

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