There are laws regarding prank calls that might end you up in law enforcement facilities for your practical jokes. Prank calls gone wrong might lead to misdemeanors and felonies if done with bad intentions.
The occurrence of hate crimes is similar to harassment. The only difference is its intent. The underlying motive of a hate crime is disrespecting the victim’s characteristics, like religion, race, or nationality, among the few.
For a prank call to be considered to be listed under the provision of disorderly conduct would not mean you are making a stupid joke.