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| Alestra |
| American Family Insurance |
| AT&T Advertising Solutions |
| AT&T Inc |
| AT&T Services, Inc. |
| Bell Canada |
| Bend Cable Communications Inc. |
| CenturyLink |
| Clearwire Corporation |
| Compania Dominicana de Telefonos (Codetel) |
| Dex One Corporation |
| Dish Network |
| H&R Block |
| Idearc Media Corp. |
| Lending Tree |
| Mobilicity |
| Oi (Telemar) |
| Prudential Insurance Company of America |
| Rogers Communications Inc. |
| TELUS Communications Company |
| Verizon Wireless Inc. | |
| Ameriprise Financial, Inc. |
| Anuncios en Directorios (ADSA) |
| AT&T Mobility |
| AT&T Interactive |
| AT&T Yellow Pages |
| Bell Mobility Inc. |
| Boost Mobile, LLC |
| Claro Brazil |
| Comcast |
| CompuCom Systems, Inc |
| DirectWest Publishers Ltd |
| DIRECTTV U.S. |
| Fiserv |
| ICE |
| Intelig |
| MetroPCS |
| NuVox Communications |
| Qwest Communications International Inc. |
| Roche Diagnostics |
| Sprint |
| TELUS Mobility |
| T-Mobile USA |
| Verizon Communications Inc. | |
| ACER |
| AIS |
| Applifone Co., Ltd. |
| Bakcell |
| Beijing Unicom |
| CSL New World Mobility |
| Excelcomindo (XL) |
| Far EasTone |
| HeNan Unicom |
| Hubei Telecom |
| JSC KazakhTelecom |
| KDDI |
| Reliance Communications (RCOM) |
| Sensis™ |
| ShanXi Telecom |
| Tata Communications Ltd. |
| Telikom PNG Limited |
| TelstraClear |
| Vietnam Telecom National Co. | |
| AAPT |
| Advanced Info Service |
| B Mobile Communications |
| Beijing Mobile Communication Company Ltd |
| China Mobile Ltd |
| China United Telecommunications Corp |
| Etisalat Lanka (Private) Limited |
| Hebei Unicom |
| Hong Kong CSL |
| J:COM (Jupiter Telecom) |
| JiangXi Telecom |
| GET |
| LiaoNing Unicom |
| Maxis Communications |
| ShangHai Telecom |
| SingTel Optus |
| Teleinfo Media Co. Ltd |
| Telstra |
| Time dotCom Bhd |
| XinJiang Telecom | |
| 012 Smile.Communications Ltd |
| 013 NetVision |
| A1 Telekom Austria |
| Best |
| BT |
| Cellcom |
| Cellcom Guinea S.A. |
| Completel Liberia |
| CortalConsors |
| De Telefoongids BV (European Directories) |
| Dumrath & Fassnacht |
| Eagle Mobile |
| Eircom |
| Enel S.p.A. |
| Elion Enterprises (Eesti Telefon) |
| Ericsson |
| European Directories |
| HOT Telecom |
| HSBC Bank plc |
| Interoute Telecommunications Ltd |
| Ja |
| KPN |
| MobilTel (M-Tel) |
| Netia |
| O2 Ireland |
| O2 UK |
| Openreach |
| Optimus |
| Paginas Amarelas, SA |
| Partner Communications |
| SEAT Pagine Gialle S.p.A. |
| SFR (Societe Francaise de Radiotelephone) |
| SmartTrust |
| Sunrise |
| Tele2 Telecommunication GmbH |
| Telefonica Europe plc |
| Telefonica O2 Germany |
| Telekom Austria |
| Telenor Denmark |
| Telenor Sverige AB |
| TeliaSonera Sweden |
| T-Mobile Czech Republic |
| T-Mobile Austria |
| T-Mobile Croatia |
| T-Mobile Hungary |
| Truvo |
| Trudon Pty Ltd |
| Togo Telecom |
| U-Com Burundi |
| VimpelCom |
| Vodafone Hungary |
| Vodafone Ireland |
| Vodafone Portugal |
| Vodafone Netherlands |
| Vodafone Romania |
| Vodafone Spain |
| Wind |
| Yell Publicidad |
| ZON Multimedia | |
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