| AT&T Inc. |
29,955 |
| EMC Corporation |
7,132 |
| Sprint Nextel Corporation |
6,168 |
| Motorola, Inc. |
5,797 |
| Level 3 Communications, Inc |
5,571 |
| United States Postal Service |
4,386 |
| Verizon Wireless |
3,863 |
| TELUS Corporation |
3,625 |
| Verizon Communications Inc. |
3,205 |
| British Telecom Group Plc |
2,944 |
| Time Warner Cable, Inc. |
2,883 |
| Alcatel-Lucent Technologies Inc. |
2,858 |
| Comcast Corporation |
2,832 |
| Harris Corporation |
2,491 |
| L-3 Communications Command & Control Systems and Software (C2S2) |
2,196 |
| Bell Canada - Enterprise Group |
2,144 |
| Avaya Inc. |
2,126 |
| Qwest Communications International Inc. |
2,085 |
| Cox Communications, Inc. |
2,028 |
| Unisys Corporation |
2,025 |
| QUALCOMM Incorporated |
1,734 |
| Fujitsu America, Inc. |
1,711 |
| BMC Software, Inc. |
1,686 |
| Verizon Business |
1,652 |
| T-Mobile USA, Inc. |
1,444 |
| ALLTEL Corporation |
1,440 |
| XO Communications, Inc. |
1,334 |
| Ericsson Inc. |
1,240 |
| Cablevision |
1,206 |
| Nokia Corporation |
1,096 |
| Graybar Electric Company, Inc. |
1,068 |
| Juniper Networks, Inc. |
1,054 |
| Corning Incorporated |
1,050 |
| Charter Communications, Inc. |
985 |
| Rockwell Collins, Inc. |
898 |
| Tellabs, Inc. |
847 |
| Embarq Corporation |
843 |
| Research In Motion |
835 |
| Saskatchewan Telephone |
822 |
| Quebecor, Inc. |
809 |
| Xilinx, Inc. |
773 |
| Tekelec |
772 |
| Rogers Communications Inc. |
721 |
| Cable & Wireless |
708 |
| Jabil Circuit, Inc. |
681 |
| SAVVIS Communications Corporation |
681 |
| tw telecom Inc |
672 |
| Cadence Design Systems, Inc. |
669 |
| CACI International Inc. |
633 |
| United States Cellular Corporation |
597 |
| West Corporation |
592 |
| PAETEC Holding Corp. |
576 |
| CommScope, Inc. |
575 |
| ARINC Incorporated |
574 |
| NEC Corporation |
546 |
| WebEx Communications, Inc. |
538 |
| Verizon |
518 |
| Mitel Networks Corporation |
489 |
| DISH Network Corporation |
487 |
| France Telecom |
482 |
| Polycom Inc |
481 |
| Vodafone Group Plc |
466 |
| Wentworth Institute of Technology |
462 |
| ADTRAN, Inc. |
458 |
| IDT Corporation |
456 |
| Thomas & Betts Corporation |
454 |
| ePlus Technology Inc. |
443 |
| TELUS Mobility |
443 |
| Global Crossing Ltd. |
435 |
| CenturyLink, Inc. |
435 |
| Intercall, Inc. |
428 |
| O2 plc |
421 |
| TDS Metrocom |
419 |
| One Communications |
405 |
| ARRIS Group, Inc. |
394 |
| Cricket Communications |
376 |
| Shaw Communications Inc. |
376 |
| Getronics |
374 |
| Loon Film |
371 |
| Windstream Corporation d/b/a Windstream Communications |
367 |
| Presidio Networked Solutions |
366 |
| Vertical Communications, Inc. |
365 |
| Applied Signal Technology, Inc. |
357 |
| Cypress Communications, Inc. |
335 |
| Granite Telecommunications |
313 |
| Hughes Network Systems, LLC |
313 |
| Atmel Corporation |
303 |
| Hill, Holliday, Connors, Cosmopulos Inc. |
302 |
| MIT Alumni Association |
301 |
| Intelsat |
299 |
| LG Electronics USA, Inc. |
296 |
| Mediacom Communications Corporation |
293 |
| Time Warner Inc. |
293 |
| NuVox Communications, Inc. |
291 |
| Frontier Communications Corporation |
289 |
| Cbeyond, Inc. |
289 |
| Openwave Systems Inc. |
281 |
| Cogent Communications Group, Inc. |
278 |
| Cincinnati Bell Inc. |
277 |
| Sierra Wireless, Inc. |
267 |
| Qlogic Corp. |
266 |
| Patni Computer Systems Ltd. |
259 |
| Manitoba Telecom Services Inc. |
259 |
| RF Micro Devices, Inc. |
258 |
| T-Systems,Inc |
254 |
| Crown Castle International Corp. |
250 |
| Clearwire Corporation |
248 |
| Worldspan Technologies Inc. |
235 |
| Spirent Communications, Inc. |
234 |
| TANDBERG |
233 |
| American Tower Corporation |
230 |
| Eastlink |
230 |
| SuddenLink Communications |
226 |
| Westwood One, Inc. |
224 |
| DeltaCom, Inc. |
224 |
| EMS Technologies, Inc. |
221 |
| MetroPCS Communications, Inc. |
215 |
| Enterasys Networks, Inc. |
214 |
| Virgin Media Inc. |
208 |
| Xwave |
206 |
| Syniverse Technologies |
204 |
| City of Anaheim |
203 |
| Sony Ericsson Mobile Communications (USA) Inc. |
196 |
| Broadview Networks Holdings, Inc. |
193 |
| U.S. TelePacific Corp. |
188 |
| Brightpoint, Inc. |
187 |
| SureWest Communications |
184 |
| Bell Aliant |
180 |
| OFS Fitel, LLC |
179 |
| Wire One |
175 |
| iPass Inc. |
175 |
| Telephone and Data Systems, Inc. |
174 |
| MasTec, Inc. |
174 |
| Reliance Anil Dhirubhai Ambani Group. |
172 |
| CXtec |
171 |
| Aruba Wireless Networks, Inc. |
171 |
| EdTech Networks, Inc. |
170 |
| Zhone Technologies, Inc. |
168 |
| General Communication, Inc. (GCI) |
163 |
| Telstra |
162 |
| General Cable Corporation |
162 |
| Nice Systems |
162 |
| Nexus Integration Services |
162 |
| NetVersant Solutions, Inc |
161 |
| Harris Stratex Networks, Inc. |
159 |
| Shared Technologies Inc. |
158 |
| Force10 Networks, Inc. |
158 |
| Sita Information Networking Computing Usa, Inc. |
158 |
| Communications Data Services, Inc. |
156 |
| Brightstar Corporation |
155 |
| Redback Networks Inc. |
153 |
| Burndy Corporation |
152 |
| Harmonic Inc. |
151 |
| Communications Supply Corporation |
149 |
| Allstream |
149 |
| Intrado Inc. |
148 |
| Sonus Networks, Inc. |
147 |
| Psion Teklogix Inc. |
145 |
| Virgin Media |
143 |
| ShoreTel, Inc. |
142 |
| Aricent |
142 |
| TruePosition |
139 |
| TouchStar Software Corp |
139 |
| Vonage Holdings Corp. |
138 |
| Business Wire |
138 |
| Covad Communications Group, Inc. |
137 |
| TracFone Wireless, Inc. |
135 |
| TESSCO Technologies Incorporated |
134 |
| Insight Communications |
134 |
| Tata Communications Internet Services Limited |
134 |
| UTStarcom, Inc. |
133 |
| National Telecommunications and Information Administration (NTIA) |
132 |
| CPI International, Inc |
131 |
| EXFO Electro-Optical Engineering Inc. |
130 |
| Consolidated Communications |
129 |
| Allied Telesis, Inc. |
128 |
| Adaptec, Inc. |
126 |
| COLT Telecom Group plc |
125 |
| Skyworks Solutions, Inc. |
122 |
| TowerStream Corporation |
122 |
| Radware Inc. |
121 |
| Primus Telecommunications Group Inc. |
121 |
| iBasis, Inc. |
120 |
| Huawei/FutureWei Technologies |
120 |
| RCN Metro Optical Networks |
120 |
| The Siemon Company |
119 |
| Virgin Mobile USA, Inc. |
119 |
| D |
118 |
| Grande Communications Holdings, Inc. |
118 |
| Caprock Communications Inc |
118 |
| TeleCommunication Systems, Inc. |
118 |
| Bookham, Inc. |
117 |
| National Exchange Carriers Association |
117 |
| OpenTV Corp. |
117 |
| Nokia Siemens Networks |
117 |
| Seavus Group |
117 |
| Network Equipment Technologies, Inc. |
116 |
| APAC Customer Services Inc. |
116 |
| Aditya Birla Group |
116 |
| Virgo Publishing Inc |
115 |
