tool online to see every DNS entry for an IP address including any subdomains

Hello friends,

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I'm looking for a tool online that show every DNS hostname that is associated to an IP address. Let's say for example my companies public IP address that resolves to our website is 1.1.1.1 . I'm looking for a tool that if I type in 1.1.1.1 it will show me all the subdomains as well for example

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k.company.com

e.company.com

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Am I asking the right question here?

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From what I found online, I guess there isn't a cut and dry way to do this, but just sending out the question in case someone knows...

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Thank you