Is called a noun

No, the Word 'called' is the past participle, past tense of the verb to call.

The past participle of the verb is also an adjective.

EXAMPLES

• verb: We've called for a taxi.
• adjective: The called members are marked with a check.

A noun is a Word for a person, a place, or a thing.

The Word 'call' is a noun as a Word for a sound or a cry made as a summons or to attract someone's attention; the sound of an animal or bird; telephone communication or connection; a short visit; an appeal or demand for something to happen or be done; a decision or ruling made by an umpire or other official; a Word for a thing.

The noun forms for the verb to call are caller and the gerund, calling.