contact can be global between customers

Summary:

contact can be global between customers?
for example - i create contact under customer A and want the same contact to be under customer B. is it possible?
i know that between sites under the same customer there is no problem to share the same contact.
Content (please ensure you mask any confidential information):

NA

Version (include the version you are using, if applicable):

26A

Code Snippet (add any code snippets that support your topic, if applicable):

NA