Bad Mask for IP Address Error

        I'm not too clear on subnetting rules and experienced an error when I tried to assign 148.26.1.176/28 to an interface on my Cisco router. Can someone please explain why it was not allowing me to assign this address to the interface? I receive an error saying:
Bad mask /28 for address 148.26.1.176
Is it outside the permissible range?

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