ACS
ACT ELECTRONICS, INC
ACTERNA
ADELPHIA
ALBACOM
ALCATEL USA
ALPHA TECHNOLOGIES
AMERICAN POWER CONVERSION
ANIXTER INC
AT&T
ATX SYSTEMS
AUNA
AVENUE TV CABLE SERVICE INC
BATELCO
BELGACOM
BELL CANADA
BELLSOUTH TELECOMMUNICATIONS
BRANDENBURG TELEPHONE COMPANY
BRIDGECOM INTERNATIONAL
BRIGHTHOUSE NETWORKS
BT
BUCKEYE CABLE SYSTEM
BULLDOG
CABLE BAHAMAS
CABLE ELECTRONICS, INC
CABLE & WIRELESS
CABLEMAS
CABLETELCA
CABLE ONDA
CABLEVISION
CABLEVISION ARGENTINA
CABLEVISION MEXICO CITY
CABLEVISION MONTERREY
CALIX NETWORKS INC
CALL-NET TECHNOLOGY SVCS INC
CANBRAS
CANTV
CATENA NETWORKS
CAVALIER TELEPHONE
CENTURYTEL
CHARTER COMMUNICATIONS
CHESTER TELEPHONE COMPANY
CHINA TELECOM
CINCINNATI BELL TELEPHONE
CITY OF PORTLAND
CITY OF TACOMA
CLICK NETWORK
CODETEL
COMCAST CABLE COMMUNICATIONS
COMMONWEALTH TELEPHONE
COMMUNICATIONS TEST DESIGN INC
CON EDISON
CONFLUENT TECHNOLOGY GROUP
CONSOLIDATED TELECOM
COX COMMUNICATIONS
CSC HOLDINGS INC
D & E COMMUNICATIONS INC
DA TECHNOLOGIES
DB TRONICS
DESIGNED TELECOMMUNICATIONS
DYNAVAR NETWORKING INC
EASYNET GROUP PLC
EAST ASCENSION TELEPHONE
EMBARQ
EMC EASTERN MULTIMEDIA
EPM
ESSENT
EVERGREEN UTILITY CONTRACTORS
FERMI LABS
FIBER NODE SERVICES INC
FLORIDA DIGITAL NETWORK INC
FORT MILL TELEPHONE COMPANY
FRANCE TELECOM
FRANKFORT ELECTRIC & WATER PLA
FRONTIER COMMUNICATIONS
FUJITSU NETWORK COMMUNICATIONS
FUNEA BROADBAND
GB ENTERPRISES
GO DIGITAL
GRANDE COMMUNICATIONS
GRAYBAR ELECTRIC COMPANY
GUAM TELEPHONT AUTHORITY
HAGEMEYER NORTH AMERICA
HAWAII TELCOM
HCI TECHNOLOGIES INC
HIMAWARI
HYA
INFOVIAS
INSIGHT COMMUNICATIONS
INTEGRA TELECOM
INTEGRAL ACCESS INC
IOWATEL
JCOM
JERSEY TELECOM
JUPITER TELECOMMUNICATIONS CO. LTD.
KANSAI
KINGSTON COMMUNICATIONS
KNOLOGY
KOREA TELECOM
KPN
LANCASTER TELEPHONE COMPANY
LEE ENTERPRISE

LIBERTY CABLEVISION PR INC
LUCENT TECHNOLOGIES
MAGYAR TELEKOM
MATANUSKA TELEPHONE ASSOC
MEGACABLE
MENTA CABLE
MIDCONTINENT COMMUNICATIONS
MOTOROLA
MP INSTRUMENT COMPANY
MULTIOPERADORA CABLE NET
NEWNAN UTILITIES
NET GLOBOCABO
NEW ZEALAND TEL
NORTEL NETWORKS
NORTH PITTSBURGH TELEPHONE COMPANY
NORTHEAST CABLE
NORWOOD LIGHT DEPARTMENT
NTELOS
NTL GROUP
NUVOX
OHIO STATE UNIVERSITY
ONE COMMUNICATIONS
ONO CABLE
OPERADORA MEGACABLE S.A. DE CV
OPTUS
PATRIOT MEDIA & COMMUNICATIONS
PBT
PCS1
PIONEER TELEPHONE COOPERATIVE
PIPEX
PLEXUS SERVICES CORP
POWERTEL
PRECISION COMMUNICATION
PRECISION TECH SERVICES
PRTC
QSC AG
QWEST COMMUNICATIONS
RCN
ROCK HILL TELEPHONE
ROGERS COMMUNICATIONS INC
ROMTELECOM
SANDWICH ISLES COMMUNICATIONS
SAGEM COMMUNICATIONS
SAUDI TELECOM
SASKTEL
SBC
SCARLET
SEFNCO CONTRACTORS
SEREN INNOVATIONS INC
SHANGHAI HI TECH CONTROL SYSTEMS
SIEMENS
SLOVAK TELEKOM
SPRINT
SPRINT/CANADA
STARPOWER
SUNFLOWER BROADBAND
SUPER CABLE
SUSQUEHANNA COMMUNICATIONS
TASA
TBAYTEL
T-COM
TDS TELECOM
TECNOUS
TELECABLE NACIONAL
TELECENTRO S.A.
TELECOM EGYPT
TELECOM SRV-TRINIDAD & TOBAG0
TELECOM PNG
TELEFONICA
TELEFONICA O2
TELEFONICA BRAZIL
TELEMAR
TELEMEDIA
TELGUA
TELEVISION INTERNACIONAL S.A
TELKOM SOUTH AFRICA
TELLABS, INC
TELMEX
TELUS
TIME WARNER CABLE
THUNDER BAY TELEPHONE
TOT
TP
TRIGON INTERNATIONAL
TRINSIC COMMUNICATIONS, INC.
TS LEASING
TVA
TWOWAY CATV SERVICE INC
TWT
UGC UNITEDGLOBALCOMM
UPC
VARTEC
VENTRONIX
VERIZON
VIDEOTRON LTEE
VTR NET S.A.
WINDSTREAM
XO COMMUNICATIONS