125 HARBOR ROAD, LLC

310 WEST SPRUCE STREET,

360FIBER INC.

867 COAL CREEK CIRCLE SUITE 160

360NETWORKS (USA)

400 Centennial Parkway, Suite 200

360NETWORKS (USA) INC.

400 CENTENNIAL PKWY SUITE 200

360NETWORKS HOLDINGS (USA 2) INC.

867 COAL CREEK CIR STE 160

@LINK NETWORKS INC

361 CENTENNIAL PKWY #250

@LINK NETWORKS INC

361 CENTENNIAL PKWY #250

ABOVENET COMMUNICATIONS

400 Centennial Parkway Suite 200

ABOVENET COMMUNICATIONS, INC.

400 CENTENNIAL PKWY STE 200

ADEPTIVE SOFTWARE CORPORATION

363 CENTENNIAL PARKWAY

ADVENTURE VENDING INC.

397 S. TAYLOR AVE.

AIRCELL, INC.

1172 CENTURY DRIVE, #B-280

ALTERIS RENEWABLES, INC.

833 WEST SOUTH BOULDER ROAD

AMERICAN FIBER SYSTEMS

400 Centennial Pkwy Suite 200

AMERICAN FIBER SYSTEMS INC

400 CENTENNIAL PKWY SUITE 200

AMERICAN FIBER SYSTEMS, INC.

400 CENTENNIAL PKWY. SUITE 200

AMERSHAM CORPORATION

1797 BOXELDER ST

AMPERIF CORPORATION

2270 S 88TH ST MS: 4305 TAX DEPT.

AMPERIF INTERNATIONAL

2270 SOUTH 88TH ST

ASPEN PERIPHERALS CORP.

2270 S 88TH ST.

BELLA ENERGY, INC.

500 S ARTHUR AVE #400

BERNHARD SYSTEMS CORPORATION

511 E SOUTH BOULDER RD

BIG RIVER BREWERIES, INC.

248 Centennial Pkwy

BOULDER CANYON CONDOMINIUMS, INC.

371 CENTENNIAL PARKWAY SUITE 200

BREW MOON BRAINTREE INC

248 CENTENNIAL PKWY

BREW MOON COLORADO INC

248 CENTENNIAL PKWY

CABLE TELEVISION LABORATORIES, INC.

858 COAL CREEK CIRCLE

CANON HOLDINGS INC.

SUSAN S RICKS PO BOX 270931

COALFIRE SYSTEMS, INC

361 CENTENNIAL PARKWAY STE 150

COALFIRE SYSTEMS, INC.

361 CENTENNIAL PARKWAY, SUITE 150,

COALFIRE SYSTEMS, INC.

361 CENTENNIAL PARKWAY, SUITE 150

CONTIGO SOFTWARE, INC.

1157 CENTURY DRIVE

CSI ACQUISITION CORPORATION

1157 CENTURY DRIVE

DASHAMERICA, INC.

101 S TAYLOR AVE

DECISIVE TECHNOLOGY CORPORATION

371 CENTENNIAL PARKWAY

EAT-1412, LLC

371 CENTENNIAL PARKWAY SUITE 200

EDUCAUSE

282 Century Place Suite 5000

FIBERNET OPERATIONS, INC.

901 FRONT ST STE 200

FIBERNET TELECOM, INC.

400 CENTENNIAL PKWY SUITE 200

FINANCIAL TITLE COMPANY

950 SPRUCE STREET SUITE 1C

FIRST TELECOM SERVICES

400 Centennial Parkway Suite 200

FLATIRONS MRI, LLC

363 CENTENNIAL PARKWAY

FOLZ INDUSTRIES, INC.

397 SOUTH TAYLOR AVE

FOLZ VENDING INC

397 SOUTH TAYLOR AVENUE