| AT&T Inc. |
29,523 |
| EMC Corporation |
7,167 |
| Sprint Nextel Corporation |
6,016 |
| Motorola, Inc. |
5,615 |
| Level 3 Communications, Inc |
5,574 |
| United States Postal Service |
4,394 |
| Verizon Wireless |
3,869 |
| TELUS Corporation |
3,632 |
| Verizon Communications Inc. |
3,218 |
| British Telecom Group Plc |
2,955 |
| Time Warner Cable, Inc. |
2,873 |
| Alcatel-Lucent Technologies Inc. |
2,867 |
| Comcast Corporation |
2,815 |
| Harris Corporation |
2,496 |
| L-3 Communications Command & Control Systems and Software (C2S2) |
2,209 |
| Bell Canada - Enterprise Group |
2,155 |
| Verizon Business |
2,146 |
| Avaya Inc. |
2,134 |
| Qwest Communications International Inc. |
2,080 |
| Unisys Corporation |
2,017 |
| Cox Communications, Inc. |
2,008 |
| Fujitsu America, Inc. |
1,757 |
| QUALCOMM Incorporated |
1,745 |
| BMC Software, Inc. |
1,687 |
| ALLTEL Corporation |
1,442 |
| T-Mobile USA, Inc. |
1,411 |
| XO Communications, Inc. |
1,335 |
| Ericsson Inc. |
1,253 |
| Cablevision |
1,213 |
| Nokia Corporation |
1,080 |
| Graybar Electric Company, Inc. |
1,075 |
| Juniper Networks, Inc. |
1,058 |
| Corning Incorporated |
1,047 |
| Charter Communications, Inc. |
983 |
| Rockwell Collins, Inc. |
876 |
| Tellabs, Inc. |
847 |
| Embarq Corporation |
847 |
| Research In Motion |
846 |
| Saskatchewan Telephone |
828 |
| Worldcolor |
810 |
| Xilinx, Inc. |
782 |
| Tekelec |
771 |
| Rogers Communications Inc. |
726 |
| Cable & Wireless |
703 |
| Jabil Circuit, Inc. |
685 |
| tw telecom Inc |
676 |
| SAVVIS Communications Corporation |
659 |
| Cadence Design Systems, Inc. |
651 |
| CACI International Inc. |
643 |
| U.S. Cellular Corporation |
596 |
| WebEx Communications, Inc. |
593 |
| CommScope, Inc. |
589 |
| PAETEC Holding Corp. |
583 |
| West Corporation |
580 |
| ARINC Incorporated |
578 |
| NEC Corporation |
555 |
| Mitel Networks Corporation |
515 |
| France Telecom |
488 |
| Polycom Inc |
483 |
| DISH Network Corporation |
474 |
| Vodafone Group Plc |
471 |
| ADTRAN, Inc. |
463 |
| Thomas & Betts Corporation |
456 |
| IDT Corporation |
455 |
| Wentworth Institute of Technology |
455 |
| TELUS Mobility |
448 |
| ePlus Technology Inc. |
444 |
| Global Crossing Ltd. |
442 |
| CenturyLink, Inc. |
435 |
| O2 plc |
423 |
| TDS Metrocom |
419 |
| Intercall, Inc. |
404 |
| One Communications |
401 |
| ARRIS Group, Inc. |
381 |
| Cricket Communications |
376 |
| Shaw Communications Inc. |
376 |
| Getronics |
373 |
| Loon Film |
371 |
| Windstream Corporation d/b/a Windstream Communications |
369 |
| Presidio Networked Solutions |
367 |
| Applied Signal Technology, Inc. |
358 |
| Vertical Communications, Inc. |
357 |
| Cypress Communications, Inc. |
336 |
| Hughes Network Systems, LLC |
335 |
| Granite Telecommunications |
313 |
| Atmel Corporation |
306 |
| Hill, Holliday, Connors, Cosmopulos Inc. |
305 |
| MIT Alumni Association |
302 |
| LG Electronics USA, Inc. |
300 |
| Intelsat |
300 |
| NuVox Communications, Inc. |
299 |
| Time Warner Inc. |
298 |
| Mediacom Communications Corporation |
297 |
| Frontier Communications Corporation |
296 |
| Cbeyond, Inc. |
283 |
| Cogent Communications Group, Inc. |
278 |
| Cincinnati Bell Inc. |
276 |
| Qlogic Corp. |
269 |
| Sierra Wireless, Inc. |
267 |
| Openwave Systems Inc. |
264 |
| Manitoba Telecom Services Inc. |
261 |
| Patni Computer Systems Ltd. |
259 |
| RF Micro Devices, Inc. |
257 |
| T-Systems,Inc |
253 |
| Crown Castle International Corp. |
250 |
| Clearwire Corporation |
250 |
| Worldspan Technologies Inc. |
236 |
| Spirent Communications, Inc. |
233 |
| TANDBERG |
232 |
| American Tower Corporation |
232 |
| Eastlink |
230 |
| DeltaCom, Inc. |
226 |
| EMS Technologies, Inc. |
225 |
| SuddenLink Communications |
225 |
| Westwood One, Inc. |
222 |
| MetroPCS Communications, Inc. |
213 |
| Virgin Media Inc. |
213 |
| Xwave |
212 |
| Enterasys Networks, Inc. |
210 |
| City of Anaheim |
206 |
| Syniverse Technologies |
204 |
| Sony Ericsson Mobile Communications (USA) Inc. |
197 |
| U.S. TelePacific Corp. |
193 |
| Broadview Networks Holdings, Inc. |
191 |
| Telephone and Data Systems, Inc. |
186 |
| SureWest Communications |
186 |
| Bell Aliant |
183 |
| Brightpoint, Inc. |
181 |
| OFS Fitel, LLC |
179 |
| iPass Inc. |
176 |
| Wire One |
175 |
| Aruba Wireless Networks, Inc. |
173 |
| Reliance Anil Dhirubhai Ambani Group. |
172 |
| Virgin Media |
172 |
| CXtec |
171 |
| MasTec, Inc. |
171 |
| EdTech Networks, Inc. |
170 |
| Telstra |
166 |
| Zhone Technologies, Inc. |
165 |
| NetVersant Solutions, Inc |
165 |
| Nice Systems |
164 |
| Nexus Integration Services |
162 |
| General Cable Corporation |
161 |
| General Communication, Inc. (GCI) |
161 |
| Shared Technologies Inc. |
161 |
| Sita Information Networking Computing Usa, Inc. |
160 |
| Harris Stratex Networks, Inc. |
160 |
| Communications Supply Corporation |
159 |
| Force10 Networks, Inc. |
158 |
| Communications Data Services, Inc. |
156 |
| Redback Networks Inc. |
155 |
| Brightstar Corporation |
154 |
| Burndy Corporation |
153 |
| Harmonic Inc. |
150 |
| Psion Teklogix Inc. |
149 |
| Allstream |
149 |
| Intrado Inc. |
149 |
| Sonus Networks, Inc. |
149 |
| Aricent |
142 |
| TruePosition |
139 |
| TouchStar Software Corp |
139 |
| Vonage Holdings Corp. |
138 |
| Business Wire |
138 |
| Covad Communications Group, Inc. |
137 |
| ShoreTel, Inc. |
137 |
| Insight Communications |
136 |
| Tata Communications Internet Services Limited |
136 |
| TESSCO Technologies Incorporated |
135 |
| TracFone Wireless, Inc. |
135 |
| CPI International, Inc |
134 |
| National Telecommunications and Information Administration (NTIA) |
132 |
| UTStarcom, Inc. |
132 |
| EXFO Electro-Optical Engineering Inc. |
131 |
| Allied Telesis, Inc. |
131 |
| Consolidated Communications |
129 |
| Adaptec, Inc. |
128 |
| COLT Telecom Group plc |
125 |
| TowerStream Corporation |
124 |
| Radware Inc. |
121 |
| Primus Telecommunications Group Inc. |
120 |
| RCN Metro Optical Networks |
120 |
| The Siemon Company |
119 |
| iBasis, Inc. |
119 |
| OpenTV Corp. |
119 |
| Huawei/FutureWei Technologies |
119 |
| Nokia Siemens Networks |
119 |
| Skyworks Solutions, Inc. |
118 |
| National Exchange Carriers Association |
118 |
| D |
118 |
| Network Equipment Technologies, Inc. |
118 |
| Aditya Birla Group |
118 |
| Bookham, Inc. |
117 |
| AFL Telecommunications |
117 |
| Grande Communications Holdings, Inc. |
117 |
| Caprock Communications Inc |
117 |
| APAC Customer Services Inc. |
117 |
| TeleCommunication Systems, Inc. |
117 |
| Seavus Group |
117 |
| Virgo Publishing Inc |
116 |
| Virgin Mobile USA, Inc. |
116 |
