NSLIST.NET - irt-af.cs.columbia.edu

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irt-af.cs.columbia.edu checked at 2025-11-27T08:40:41.086Z 148ms 22/22/22 100% R:14 allDone:true timedOut:false

`irt-af.cs.columbia.edu`

	A	128.59.20.159^{🇺🇸 Columbia University}
			PTR	`irt-af.cs.columbia.edu`

159.20.59.128.in-addr.arpa

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irt-af.cs.columbia.edu resolves to one IP number: 128.59.20.159.