US Signal

GRAND RAPIDS, Mich., Feb. 24, 2009 – US Signal, a leading provider of data bandwidth capacity in the
Midwest, today announced its plans to add three additional points of presence (POPs) in Northern
Wisconsin in March 2009. The Northern Wisconsin expansion will add 230 miles of long haul fiber to the
US Signal network, the largest in the Midwest.

US Signal’s expansion of its network introduces service access at the following locations:

• Green Bay, Wis. – GNBYWI01
• Appleton, Wis. – APPLWI01
• Oshkosh, Wis. – OSHKWI01

“US Signal’s network expansion will provide the customers in Northern Wisconsin’s Fox Valley region
with more cost-effective connectivity options,” said Daniel Olrich, US Signal’s executive vice president of
operations. “Customers will now have access to an expanded suite of Ethernet-based products, in
addition to seamless connections to US Signal’s fiber network across the Midwest.”

US Signal’s network includes more than 700 miles of fiber optic metro rings in 14 markets and more than
4,500 route miles of long haul fiber connecting more than 100 on-off ramps, comprised of major carrier
hotel locations and incumbent telephone company central offices.