X0203 0001143313 AMERICAN STOCK EXCHANGE LLC 0001117042 MPOWER HOLDING CORP 001-32189

175 Sully?s Trail Suite 300 Pittsford NY NEW YORK 14534

(585) 218-6550 Common Stock, Par Value $.001 17 CFR 240.12d2-2(a)(3) Kerri L. Ramirez Manager, Corporate Actions and Proxy Rulings 2006-08-07