: The use of "21613" prominently features the town's identity, often appearing on limited-edition can art, apparel, and glassware sold at the RAR Brewing Taproom .
: One of the most prominent "features" associated with this branding is the RAR Brewing Glizzy Fest, an annual street party in Downtown Cambridge involving music, food, and craft beer. 21613.rar
: This branding is frequently featured in posts by Downtown Cambridge to promote tourism and local business growth within that specific zip code. : The use of "21613" prominently features the