Country | Name | Function | Web address |
| International | Band-X | Trading, wholesale data; Telegeography | |
| UK | London Satellite Exchange | Trading, wholesale data | |
| UK | Magsys | Retail and business tariff comparison | |
| USA | Arbinet | Trading, wholesale data | |
| USA | BMG Communicatons | Offers consumers the ability to shop for, compare and purchase many discounted telecom and Internet solutions online. Consultancy delivers best of breed helping clients Build, Manage and Grow their business and network communications | |
| USA | Call Termination.com (VoIP) | Trading, forum | |
| USA | Rate Exchange | Trading, wholesale data | |
| USA | Lynx | Tariff database | |
| USA | ITXC | VoIP exchange, volume data | |
| European | Interxion | Trading, wholesale data | |
| France, UK, Germany | Tradingcom Europe | Trading, wholesale minutes | |
| Germany | European Telco Exchange | Trading, wholesale data | |
| Hong Kong | Area Capacity Exchange (ACE) | Trading, wholesale data | |
| International | Telegeography | International voice carriers report & traffic report and database | |
| The following sites also contain useful data |
| USA | Carrier Hotels | Data and availability of carrier hotel and IDC space and more | |
| USA | Colocation | Data and availability of colo space and more | |
