Can I call the police if I send a message or curse at a strange number?

legal analysis: you can call the police.

Legal basis: Article 42 of the Law of the People's Republic of China on Public Security Administration Punishment commits one of the following acts, and shall be detained for not more than five days or fined not more than 5 yuan.

If the circumstances are serious, he shall be detained for not less than five days but not more than ten days and may be fined not more than 5 yuan:

(1) Writing threatening letters or threatening the personal safety of others by other means;

(2) publicly insulting others or fabricating facts to slander others;

(3) fabricating facts, falsely accusing and framing others, and attempting to subject others to criminal investigation or punishment by public security administration;

(4) threatening, insulting, beating or retaliating against witnesses and their close relatives;

(5) sending obscene, insulting, threatening or other information for many times, which interferes with the normal life of others;

(6) peeping, taking candid photos, eavesdropping or spreading others' privacy.