Delaware Code Title 11. Crimes and Criminal Procedure § 1311. Harassment;  class A misdemeanor

(1) That person insults, taunts or challenges another person or engages in any other course of alarming or distressing conduct which serves no legitimate purpose and is in a manner which the person knows is likely to provoke a violent or disorderly response or cause a reasonable person to suffer fear, alarm, or distress;

(2) Communicates with a person by telephone, telegraph, mail or any other form of written or electronic communication in a manner which the person knows is likely to cause annoyance or alarm including, but not limited to, intrastate telephone calls initiated by vendors for the purpose of selling goods or services;

(3) Knowingly permits any telephone under that person’s control to be used for a purpose prohibited by this section;

(4) In the course of a telephone call that person uses obscene language or language suggesting that the recipient of the call engage with that person or another person in sexual relations of any sort, knowing that the person is thereby likely to cause annoyance or alarm to the recipient of the call;  or

(5) Makes repeated or anonymous telephone calls to another person whether or not conversation ensues, knowing that person is thereby likely to cause annoyance or alarm.