Are Citi bikes only in NYC?

Are Citi bikes exclusive to New York City, or can they be found in other cities and locations as well? It's common knowledge that Citi bikes have become a popular and convenient mode of transportation in the bustling metropolis of New York, but I'm curious if their reach extends beyond the five boroughs. Could you enlighten me on whether Citi bikes are limited to NYC or if they've expanded their services to other areas? I'm particularly interested in knowing if there are any plans for expansion in the NEAR future.