| M2S2 Communications |
| Madison Group Inc. |
| Madison River Telephone Company |
| Maine Telephone Company |
| Manawa Telephone Company Inc. |
| Mapcom Systems |
| Margaretville Telephone Company Inc. |
| Marianna & Scenery Hill Telephone Company |
| Marseilles Telephone Company |
| Martin Group, Inc. |
| Massena Telephone Company Inc. |
| Mathis & Associates |
| Mazer Telecom Advisors, LLC |
| McCartney and Company P.C. |
| McClure Telephone Company |
| McLean & Brown |
| McNair Law Firm |
| Measure - X |
| Mebtel, Inc. |
| Medicine Park Telephone Company |
| Melrose Telephone Company |
| MemoryLink |
| Metamora Telephone Company |
| MetaSwitch |
| MGW Telephone Company |
| Microsoft |
| Mid America Computer Corporation |
| Middleburgh Telephone Company |
| Mid-Missouri Telephone Company |
| Mid-Rivers Telephone Cooperative Inc. |
| Mid-South Consulting Engineers Inc. |
| Mid-State Consultants |
| Midway Telephone Company |
| Midwest Data Corporation |
| Miller Telephone Company 1 |
| Millington Telephone Company Inc. |
| Millry Telephone Company |
| Minburn Telephone Company dba Minburn Communications |
| Minnesota Valley Telephone Company |
| Monon Telephone Company Inc. |
| Monroe Telephone Company |
| Monte R. Lee and Company |
| Montezuma Mutual Telephone Company |
| Moonblink Communications |
| Moss Adams LLP CPAs |
| Moultrie Independent Telephone Company |
| Moundridge Telephone Company Inc. |
| Moundville Telephone Company Inc. |
| Mt. Angel Telephone Company |
| Mukluk Telephone Company, Inc. |
| MultiProcess Computer Corporation |
| Mutual Telephone Company |
| National Communications Group |
| National Directory Assistance, LLC (NDA) |
| National Farmers Union Property and Casualty Companies |
| National Information Solutions Cooperative (NISC) |
| National Technical Systems |
| National Telephone Company of Alabama, Inc. |
| Nave Communications Company |
| Nebraska Central Telephone Company |
| NECA |
| NECA Services Inc. |
| Neonova Network Services |
| Network Services Group, LLC |
| NeuStar, Inc. |
| New Ulm Telecom Inc. |
| Newforth Partners, LLC |
| Newport Telephone Company |
| Nexicom Telecommunications Inc. |
| Nexicom Telephones, Inc. |
| Niimbus LLC |
| NMI Management & Training Services |
| Nokia Siemens Networks USA LLC |
| Nortel Networks |
| Nortex Communications |
| North Country Telephone Company |
| North Dakota Telephone Company |
| North Penn Telephone Company |
| Northeast Louisiana Telephone Company |
| Northeast Telephone Company |
| North-Eastern Pennsylvania Telephone Company |
| Northern Arkansas Telephone Company |
| Northern Iowa Telephone Company |
| North-State Telephone Company |
| NRTC |
| NTELOS |
| Occam Networks, Inc. |
| Odin Telephone Exchange Inc. |
| Olsen Thielen & Co., Ltd. |
| OneDisc.com, Inc. |
| Oneida County Rural Telephone Company |
| Ontera |
| Ontonagon County Telephone Company |
| Optelian Access Networks, Inc. |
| Oregon Farmers Mutual Telephone Company |
| Orwell Telephone Company |
| Otelco , Inc. |
| Ozark Telephone Company |
| Packet Vision Limited |
| Palmerton Telephone Company |
| Palmetto Rural Telephone Cooperative, Inc. |
| Panhandle Telephone Cooperative Inc. |
| PANNAWAY Technologies Incorporated |
| Park Region Mutual Telephone Company |
| Pattersonville Telephone Company 1 |
| PBT Telecom, Inc. |
| Peoples Mutual Telephone Company |
| Peoples Telephone Company |
| Peoples Telephone Company |
| Performance Technologies |
| Phonetics, LC/Switchmaxx |
| Pierce Telephone Company Inc. |
| Pigeon Telephone Company |
| Pine Belt Telephone Company |
| Pine Drive Telephone Company |
| Pine Telephone Systems Inc. |
| Pinnacle Publishing, LLC |
| Pinnacles Telephone Company |
| Pioneer Communications |
| Pivot Research & Marketing, LLC |
| Plant Telecommunications |
| Postini Corp |
| Pottawatomie Telephone Company |
| Power & Telephone Supply Company |
| Preston Telephone Company |
| Procera Networks, Inc. |
| Public Service Telephone Company |
| Pymatuning Independent Telephone Company |
| Quintrex Data Systems |
| Radcliffe Telephone Company |
| Razorsight Corporation |
| RBC Daniels |
| Reasnor Telephone Company LLC |
| Redwood County Telephone Company |
| Reservation Telephone Cooperative |
| Reserve Telephone Company Inc. |
| Riazzi Rhyne Investment Group |
| Richmond Telephone Company |
| Ridgeville Telephone Company |
| Ritter Communications, Inc. |
| Riverstone Networks |
| Rivulet Communications, Inc. |
| Roanoke Telephone Company |
| Rochester Telephone Company Inc. |
| Rock Port Telephone Company |
| Roger E. Hawkins, PhD, Inc. |
| Ron Comingdeer & Associates |
| Ronan Telephone Company |
| Roome Telecommunications Inc. |
| RT Communications |
| Rural Telephone Finance Cooperative |
| Rural Telephone Service Company Inc. |
| RVW, Inc. |
| Saco River Telegraph and Telephone Company |
| Saddleback Communications |
| Sagemark Consulting |
| Samsung Telecommunications America, L.P. |
| San Carlos Apache Telecom Utility - NTTA |
| Sandvine Incorporated |
| Sandwich Isles Communications, Inc. |
| SAPIENCE360 |
| Schaller Telephone Company |
| Scott County Telephone Company |
| SecurityCoverage, Inc. |
| Seneca Telephone Company |
| Shawnee Telephone Company |
| Sheilds Environmental Inc. |
| Shenandoah Telephone Company |
| Sherburne County Rural Telephone Company |
| Shoreham Telephone Company |
| Sidney Telephone Company |
| Siemans |
| Sierra Telephone |
| Silver Star Communications |
| Siskiyou Telephone Company |
| SkyStream Networks |
| Sleepy Eye Telephone Company |
| SMC Networks, Inc. |
| Smithville Telephone Company Inc |
| Sogetel Inc. |
| Solarus |
| South Arkansas Telephone Company Inc. |
| South Central Telephone Association, Inc. |
| Southeast Nebraska Telephone Company |
| Southern Kansas Telephone Company Inc. |
| Southern Montana Telephone Company |
| Spirit Telecom |
| Springport Telephone Company |
| SRT Communications Inc. |
| Standish Telephone Company |
| Startel Corporation |
| State Long Distance Telephone Company |
| State Telephone Company |
| STBS, Inc. |
| Stifel Nicolaus Company, Inc. |
| Swayzee Telephone Company Inc. |
| Sweetser Telephone Company Inc. |
| Swimelar & Willard, LLC |
| Sycamore Telephone Company |
| Syniverse Technologies, Inc. |
| Taconic Telephone Corp. d/b/a Fairpoint Communications |
| Taqua, Inc. |
| TCA, Inc-Telcom Consulting Associates |
| TDS Telecom |
| TEC |
| Tekelec |
| TelAlaska, Inc. |
| TelAtlantic Communications |
| Telcom Support Services |
| TELEC Consulting Resources Inc. |
| Telechannel |
| Telephone Service Company |
| Telergee Alliance |
| Tellicent Inc. (CADTEL) |
| Tellytopia, Inc. |
| Tenino Telephone Company |
| Terral Telephone Company |
| The Berry Company |
| The Billing College |
| The Davis Group |
| The Pine Tree Tel & Tel Company |
| The Registry at Info Avenue, LLC |
| The TAL Group |
| Three River Telco |
| Tohono O'Odham Utility Authority - NTTA |
| Toledo Telephone Company Inc. |
| Toly Digital Networks, Inc. |
| Totah Communications, Inc. |
| Tri-County Telephone Company |
| Trumansburg Telephone Company, Inc. |
| Twin Valley Telephone Inc. |
| UBTA-UBET Communications |
| UDP |
| Union Springs Telephone Company Inc. |
| Unipower Telecom |
| United Farmers Telephone Company |
| United Telephone Association Inc. |
| United Telephone Company |
| Unitel Inc. |
| Upper Peninsula Telephone Company |
| UtiliTec Communications |
| Van Buren Telephone Company |
| Van Hoet & Company, Chartered |
| Vantage Point Solutions |
| Vanu, Inc. |
| Ventura Telephone Company Inc. |
| Venture Consulting |
| Villisca Farmers Telephone Company |
| Viodi, LLC |
| Vixxi Solutions, Inc. |
| Volcano Telephone Company |
| W. Metts Engineering |
| Wahkiakum West Telephone |
| Waitsfield and Champlain Valley Telecom |
| Waller Capital Corporation |
| Wamego Telephone Company Inc. |
| Ward & Associates |
| Warinner, Gesinger & Associates, LLC. |
| Watershed Networks, Inc. |
| Wauneta Telephone Company |
| Wave7 Optics |
| Waverly Hall Telephone, L.L.C. |
| Weather Central |
| West Tennessee Telephone Company |
| WesTel Systems |
| Western New Mexico Telephone Company |
| Western Telephone Company |
| Wheat State Telephone Inc. |
| Whidbey Telecom |
| Wilkes Telephone & Electric Company |
| Wilson Telephone Company Inc. |
| Windstream Yellow Pages - formerly Alltel Publishing |
| Winnebago Cooperative Telecom Association |
| Withum, Smith & Brown |
| Wittenberg Telephone Company |
| Woodstock Telephone Company |
| WTC Communications |
| WVT Communications |
| Xangati, Inc. |
| Yates City Telephone Company |
| Yukon Telephone Company Inc. |
| Yukon-Waltz Telephone Company |
| Zcorum, Inc. |
| Zenda Telephone Company Inc. |
| Zone Telecom |
| ZTE (USA), Inc. |
| Zumbrota Telephone Company |
