AeroFon Corporation Provides wireless communications to areas with little prospect for ground-based service. http://www.aerofon.com/

Airadigm Communications Inc. Operate a digital PCS network in Wisconsin and Iowa. Features pricing plans, area of coverage, and news. http://www.airadigm.com/

AirNet Communications Corporation Provides broadband, software-defined base stations, backhaul free base stations and other infrastructure products to wireless service operators. (Nasdaq: ANCC) http://www.aircom.com/

BT Cellnet UK GSM carrier providing WAP and SMS. Has an alliance with Genie to provide digital content to mobile phones. http://www.o2.co.uk/

CapRock Communications Corp. Remote satellite telecommunications firm. Voice and data services offered for mobile and remote connectivity. (Nasdaq: CPRK). http://www.caprock.com/

Cellular One Group A network of independent providers partnering under one brand. http://www.cellularone.com/

Cellular Telecommunications & Internet Association ( CTIA ) International organization that represents all elements of wireless communication. Offers information on industry issues, market research and reports, careers, and membership details. http://www.ctia.org/

Crown Castle International Builds wireless infrastructure for carriers, including towers and rooftops. http://www.crowncastle.com/

GSM Countries A catalog of the 400 system operators using the GSM standard. 8 out of 10 cellular systems in the world are listed here. http://www.gsmworld.com/

Hong Kong CSL Limited Operates a dual band mobile network through 1O1O and One2Free. Pre-paid mobile services, international roaming services, WAP, HSCSD and GPRS. http://www.hkcsl.com/

Microcell (Fido) Canadian wireless voice and Internet provider. http://www.microcell.com/

Midwest Wireless Main service area in southern Minnesota and northern Iowa. http://www.midwestwireless.com

MobileOne Singapore GSM and CDMA carrier in Singapore, providing SMS and WAP. http://www.m1.com.sg

Nextel Communications, Inc. Provides wide array of digital and analog wireless communication services, including mobile telephone and two-way radio dispatch, paging and alphanumeric short-messaging services. http://www.nextel.com/

NTELOS PCS operator in the Virginia and W. Virginia area of U.S. http://intelos.com

NTT DoCoMo, Inc. Major Japanese mobile provider. Includes corporate structure, research and development, and consumer shopping. http://www.nttdocomo.com/

South Central Communications Provides coverage to Southern and Central Utah. http://www.scwireless.com/

Southern LINC Provides a digital wireless network for two-way radio, phone service, numeric and text paging and mobile data . Includes service plans, coverage details and a facility to purchase online . http://www.solinc.com/

Spice Telecom Providing mobile telecommunications in the Calcutta, India telephone district. http://www.spiceindia.com/

Sprint Spectrum, L.P. Provide an all-digital PCS network throughout the United States. Provides a range of information on products and services. Includes a facility to purchase online . http://www.sprintpcs.com/