tw telecom(NASDAQ:TWTC), a leading provider of managed services including Business Ethernet, converged and IP VPN solutions for enterprises throughout the U.S., today announced an expansion of its fiber network intoMontgomery County, Maryland. Businesses throughout the area will now be able to utilizetw telecom'sindustry-leading network solutions.tw telecomcurrently operates communications networks inNorthern Virginia,Baltimoreand D.C., as well as in 75 markets across the country