Pac-West Telecomm Inc.

Michael B. Hawn joined Pac-West as Vice President of Customer Network Services in August 2001. Mr. Hawn has end-to-end responsibility over service delivery, maintenance, planning, engineering, billing operations and reliability. He has over 18 years of telecommunications management experience, including network planning, engineering, service delivery, provisioning, and software development. His former positions include Vice President of National Operations from October 2000 to April 2001 and Vice President of Program Management from February 2000 to September 2000 for @Link Networks, Inc. in Louisville, CO, Vice President of Planning and Engineering and Vice President Engineering from March 1999 to February 2000, and Senior Director of Quality from June 1997 to August 1998 for ICG Communications, Inc. in Englewood, CO. Mr. Hawn also served as Technical Manager for Lucent Technologies Regional Technical Assistance Center (RTAC) in Lisle, IL and Cockeysville, MD from May 1995 to June 1997, and as a Member of Technical Staff from May 1989 to May 1995 and Senior Technical Associate from June 1986 to March 1989 for AT&T Bell Laboratories in Naperville, IL.

Mr. Cox joined Pac-West in August of 2000 as Director of Investor Relations. He currently serves as Vice President of Business Development and Investor Relations. Mr. Cox oversees Pac-West's business development, corporate development, and investor relations initiatives. Prior to joining Pac-West, Mr. Cox was Founder and President of The Supplier Exchange, LLC, an online global marketplace for finished retail goods. Mr. Cox has performed various roles within the financial community in both Canada and the U.S., from investor relations with the Financial Relations Board, to corporate finance at Loewen Ondaatje McCutcheon, to financial research with Deacon Capital Corporation. Mr. Cox received a BA in Psychology from the University of Western Ontario and holds an MBA in Finance and International Business from McGill University in Montreal.

Mark joined the Wayne office of TL Ventures in 1994 as a Managing Director. During his tenure, Mark has been extensively involved in the creation, incubation, development or consolidation of a number of information technology and communications companies.

Samuel A. Plum has served as a Director of Pac-West since September 1998. Mr. Plum has been a Managing General Partner of the general partner of SCP Private Equity Partners, L.P. since its commencement in August 1996, and was employed by Safeguard Scientifics from 1993 to 1996. From February 1989 to January 1993, Mr. Plum served as President of Charterhouse, Inc. and Charterhouse North American Securities, Inc., the U.S. investment banking and broker-dealer divisions of Charterhouse PLC, a merchant bank located in the United Kingdom. From 1973 to 1989, Mr. Plum served in various capacities at the investment banking divisions of PaineWebber, Inc. and Blyth Eastman Dillon & Co., Inc. Mr. Plum has 22 years of investment banking, mergers and acquisitions, and private equity investment experience. Mr. Plum also serves as a director of Index Stock Imagery, Inc., Inc., Metallurg Holdings, Inc., Mobility Technologies, Inc. and Pentech Financial Services Inc.

Tom Munro has more than 22 years of experience in both finance and technology. Most recently, he was President of Wireless Facilities, Inc. (WFI) a global leader in the design, deployment, and management of wireless mobility and broadband wireless networks. He also served as CFO of WFI from 1997 to 2000, through the company's successful IPO, and as President from September of 2000 until his retirement in January, 2003. Prior to joining WFI, Tom was founder and CEO of @Market, a retail sporting goods website. Tom holds a bachelor's degree in business administration and an MBA from the University of Washington. He has co-authored two college level text books on computer programming. Tom sits on the board of Pac-West Telecom, Inc. (NASDAQ: PACW), a provider of integrated communications services to service providers and business customers in the western U.S., as well as a number of other high-tech companies.

Timothy A. Samples has served as a director since March 2007. Since January of 2003, he has been the principal of Sapience LLC in Scottsdale, Ariz., where he does consulting work and serves as a non-executive director for three telecommunications and technology companies. Mr. Samples has more than 20 years experience in the communications industry, including time as CEO, president and chairman of the board of management for Completel N.V., a Dutch-registered competitive local exchange carrier in London and Paris, from February 2001 to June 2002. From February 2000 to February 2001, he was CEO and president of Firstmark Communications, a Pan-European broadband company with operations in seven Western European countries; and from September 1997 to February 2000, he was CEO of One2One, a GSM service operator created through a joint venture between MediaOne Group and cable and wireless providers. From July 1995 to May 1996, Mr. Samples served as vice president and general manager for US West Cellular/AirTouch in Phoenix, Ariz. He also held earlier management, sales and marketing positions with US West/MediaOne Group.