Vonage is a pioneer in the broadband phone service industry. Vonage's award winning phone service is sold on the web and through national retailers. Vonage Holdings Corp. is headquartered in Holmdel, New Jersey.

Skype is the world's fastest-growing Internet communication offering, allowing people everywhere to make unlimited voice and video communication for free between the users of Skype software. Skype is available in 27 languages and is used in almost every country around the world. Skype... more

Cable & Wireless is the only full service telecommunications company in the region, and one of the world's leading international communications companies. It provides fixed and mobile voice, data, IP (Internet Protocol) and broadband services to business and residential customers, as well... more

Cingular Wireless is the largest wireless carrier in the United States, serving 58.7 million customers. Cingular, a joint venture between AT&T Inc. (NYSE: T) and BellSouth Corporation (NYSE: BLS), has the largest digital voice and data network in the nation - the ALLOVERâ„¢ network - and... more

WorldCom, Inc. (WCOEQ, MCWEQ) is a leading global communications provider, delivering advanced communications connectivity to businesses, governments and consumers. With one of the world's most expansive, wholly-owned data networks, WorldCom provides innovative data and Internet services... more

BellSouth Corporation is a Fortune 100 communications services company headquartered in Atlanta, Georgia, serving more than 44 million customers in the United States and 14 other countries. Consistently recognized for customer satisfaction, BellSouth provides a full array of broadband... more

Global Crossing (Nasdaq: GLBC) provides telecommunications solutions over the world's first integrated global IP-based network. Its core network connects approximately 400 cities in about 45 countries worldwide, and delivers services to more than 690 cities in more than 60 countries and... more

AT&T Inc. (AT&T) is a provider of telecommunications services in the United States. It offers its services and products to consumers in the United States, and services and products to businesses and other providers of telecommunications services worldwide. The services and products that... more

Verizon Wireless operates the nation's most reliable wireless voice and data network, serving 68.7 million customers. Headquartered in Basking Ridge, N.J., with 70,000 employees nationwide, Verizon Wireless is a joint venture of Verizon Communications (NYSE: VZ) and Vodafone (NYSE and... more

Vonage Holdings Corp. (Vonage) is a provider of broadband Voice over Internet Protocol (VoIP) services to residential and small business and home office customers. The Company services the United States, Canada and United Kingdom. Vonage's customers can make and receive calls using a... more

Qwest offers a powerful combination of award-winning broadband, video and voice solutions for residential customers, businesses and government agencies. Customers coast to coast turn to Qwest's industry-leading national fiber optic network to meet their evolving communications and... more

Alltel is owner and operator of the nation's largest wireless network and has more than 12 million customers.

Verizon Business, a unit of Verizon Communications (NYSE: VZ), operates the world's most connected public IP network and uses its industry-leading global-network capabilities to offer large-business and government customers an unmatched combination of security, reliability and speed. The... more

China United Communications Corporation Limited, the second largest nation-wide communications carrier in China, was formed on July 19, 1994. The establishment of China Unicom has played a positive role in introducing the competition in the field of basic telecom services and promoting... more

Primus Telecommunications Group, Incorporated (Primus) is an integrated telecommunications services provider offering a portfolio of international and domestic voice, wireless, Internet, voice-over Internet protocol (VoIP), data and hosting services to business and residential retail... more

Golden Telecom, Inc., (NASDAQ: "GLDN") is a leading facilities-based provider of integrated telecommunications and Internet services in major population centers throughout Russia and other countries of the CIS. The Company offers voice, data and Internet services to corporations,... more

Eschelon Telecom, Inc. is a facilities-based competitive communications services provider of voice and data services and business telephone systems in 23 markets in the western United States. Headquartered in Minneapolis, Minnesota, the company offers small and medium-sized businesses a... more

Telstra Corporation Limited (Telstra) is an Australia-based company, providing telecommunications and information services for domestic and international customers. The Company operates in nine business segments: Telstra Consumer Marketing and Channels (TC&C), Telstra Business (TB),... more

Cognigen Networks, Inc. based in metropolitan Seattle, Washington, offers a wide range of telecommunication services and related technology products via its Web site, http://www.cognigen.com. Cognigen's robust marketing engine harnesses distribution channels featuring a prominent Internet... more

iBasis, Inc. is a wholesale carrier of international long distance telephone calls and a provider of retail prepaid calling services and enhanced services for mobile operators. The Company's operations consist of wholesale trading business (Trading), in which it connects buyers and... more

Telefonica S.A. (Telefonica) is a diversified telecommunications company, which provides a range of services through telecommunications networks. The Company is focused on providing fixed and mobile telephony services. Telefonica is present principally in Spain, Europe and Latin America.... more

Net2Phone provides VoIP PacketCable, SIP and wireless solutions around the world. As a leader in turn-key hosted VoIP telephony services, Net2Phone has routed billions of VoIP minutes globally, servicing more than 100,000 users in the US as well as hundreds of thousands of more overseas.... more

IDT Corporation is a multinational holding company with subsidiaries spanning several industries. The Company’s principal businesses consist of IDT Telecom; IDT Energy; IDT Carmel; IDT Local Media, and IDW Publishing. The Company conducts its business through five business segments:... more

SBC Communications Inc. is a Fortune 50 company whose subsidiaries, operating under the SBC brand, provide a full range of voice, data, networking, e-business, directory publishing and advertising, and related services to businesses, consumers and other telecommunications providers. SBC... more

Based in Charlotte, N.C., US LEC is a leading telecommunications carrier providing integrated Internet, data and voice services to medium and large businesses and enterprise organizations throughout 16 Eastern states and the District of Columbia. US LEC services include Voice over... more

ITC^DeltaCom, Inc., headquartered in Huntsville, Alabama, provides, through its operating subsidiaries, integrated telecommunications and technology services to businesses and consumers in the southeastern United States. ITC^DeltaCom has a fiber optic network spanning approximately 15,800... more

MCI, Inc. (NASDAQ: MCIP) is a leading global communications provider, delivering innovative, cost-effective, advanced communications connectivity to businesses, governments and consumers. With one of the most expansive global IP backbones and wholly-owned data networks, MCI develops the... more

China Telecom Corporation Limited (China Telecom) is a provider of wireline telecommunications services in Shanghai municipality, Guangdong province, Jiangsu province, Zhejiang province, Anhui province, Fujian province, Jiangxi province, Guangxi Zhuang autonomous region, Chongqing... more

KDDI CORPORATION is a Japan-based telecommunications company. The Company operates in three business segments. The Fixed Telecommunication segment is engaged in the provision of domestic and international telecommunication services, Internet services and solution services. The Mobile... more

Headquartered in Vienna, Virginia, SunRocket, the "no gotcha" phone company, is bringing Internet phone service to mainstream America with the nation's first full-year, flat-rate home phone package. SunRocket is the only company to offer complete Internet phone service at an... more

Leap, headquartered in San Diego, Calif., is a customer-focused company providing innovative mobile wireless services that are targeted to meet the needs of customers who are under-served by traditional communications companies. With a commitment to predictability, simplicity and value as... more

NewSouth Communications is proud to offer the very best in communications solutions to businesses in the Triangle. Our product line includes data, Internet, local service, long distance, and other enhanced services. Raleigh businesses that have chosen NewSouth Communications are enjoying... more

Philippine Long Distance Telephone Co (PLDT) is a diversified telecommunications company in the Philippines. The Company operates through three segments: Wireless, Fixed Line, and Information and Communications Technology. The Company offers a range of telecommunications services to... more

U S WEST provides a full range of telecommunications services including wireline, wireless PCS, data networking, directory and information services to more than 25 million customers nationally and in 14 western and midwestern states.

Broadwing Corporation (NASDAQ:BWNG), through its consolidated subsidiary Broadwing Communications, LLC (Broadwing) delivers innovative data, voice, and media solutions to enterprises and service providers. Enabled by its leading-edge optical network and award-winning products and... more

A: ICG provides access and bandwidth to three main customer segments: carriers and ISPs, high-bandwidth eterprise customers, and small to medium-sized businesses. ICG also provides solutions to educational facilities and government operations that need customized solutions. Q: Where... more

VoIP, Inc. is a global provider of wholesale long-distance and local telephone services through its voice over Internet protocol (VoIP) network (called the VoiceOne Network). VoIP is the real-time transmission of voice communications in the form of digitized packets of information over... more

ITXC Corp. is one of the world's leading carriers based on minutes of international traffic carried. As a carriers' carrier, ITXC serves all major carriers in the US; many incumbent carriers worldwide including China Telecom, PLDT, Telkom South Africa, Telecom Colombia, Telenor, Telia,... more

Yak provides the Services to you as an independent contractor. The employees or agents of participating carriers are not and shall not be deemed to be agents or employees of Yak. In subscribing for the Services, You obtain no proprietary right or interest in, any particular facility,... more

Integra Telecom Inc. provides voice, data and Internet communications to thousands of business and carrier customers in 11 Western states, including: Arizona, California, Colorado, Idaho, Minnesota, Montana, Nevada, North Dakota, Oregon, Utah and Washington. The company owns and operates... more

Bharti Airtel Limited (Bharti Airtel), is an Indian telecom services provider. The Company has four business units: Mobile Services, Telemedia Services, Enterprise Services Carriers and Enterprise Services Corporate. Mobile Services offers mobile and fixed wireless services (FWP) using... more

Cincinnati Bell Inc. is a full-service provider of data and voice communications services and equipment, and a regional provider of wireless and long distance communications services. The Company provides telecommunications service primarily on its owned local and wireless networks. The... more

Launched in November 2002, Packet8 enables anyone with high-speed internet access to sign up for telephone service at http://www.packet8.net. Customers can choose a direct-dial phone number from any of the rate centers offered by the service, and then use an 8x8-supplied terminal adapter... more

Tele2 AB (Tele2) is a Sweden-based company engaged in the sale of communications solutions. Its principal service is mobile telephony complemented by broadband. The Company’s offering includes three segments. The Mobile telephony segment provides a product package comprising subscription... more

Centennial Communications Corp. (Centennial) is a regional wireless and broadband telecommunications service provider serving over 1.1 million wireless customers and approximately 582,200 access line equivalents in markets covering approximately 13 million Net Pops in the United States... more

Optus is an Australian leader in integrated communications - serving more than six million customers each day. The company provides a broad range of communications services including mobile, national and long distance services, local telephony, international telephony, business network... more

Xfone, Inc. is a holding and managing company providing international voice, video and data communications services with operations in the United States, the United Kingdom and Israel offering a range of services, including local, long distance and international telephony services, video,... more

Dialpad Communications, Inc. is a leading provider of high-quality Internet calling solutions, generating over 300 million calls in more than 200 countries worldwide. Dialpad's patent-pending technology has made it the Internet's best phone call, with no large downloads or complicated... more

We are a leading provider of wireless and wireline communications services to consumers and businesses in Virginia and West Virginia under the nTelos brand name. We concentrate on providing services to meet the current and future communications needs of customers and that we believe... more

Dallas-based MetroPCS is a provider of wireless communications services with a total of 18 PCS licenses in the greater Miami, San Francisco, Atlanta and Sacramento metropolitan areas. MetroPCS offers customers flat rate plans with unlimited anytime local and long distance minutes with no... more