WWW.RTSAK.COM - 11.89.231.147.in-addr.arpa

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11.89.231.147.in-addr.arpa checked at 2025-10-05T13:25:32.245Z 77ms 16/16/16 100% R:5

`11.89.231.147.in-addr.arpa`

PTR	`thales.math.cas.cz`
		A	147.231.89.11^{🇨🇿 CESNET}
			PTR	`thales.math.cas.cz`

`89.231.147.in-addr.arpa`

	NS	`academy.cas.cz`
	NS	`core.math.cas.cz`

Starts with same word

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Starts similarily