I have 500+ connections on LinkedIn. My Google contacts number in the thousands. I am often the go-to person when friends and families want to email or call someone and don't have the information they need.
A few years ago, Mozelle asked me how to get in touch with Bob about a business matter. They are both former colleagues from my days in investment banking and New York State government. I knew they had connected when Mozelle called me one evening. He said he was having dinner with Bob - in Hanoi! My network goes international.