CCMI Subscription based provider of telecom rate and tariff documents. Owned by United Communications Group. http://www.ccmi.com

CRTC Direct access to Canadian Radio-television and Telecommunications Commission telecom tariff filings. http://www.crtc.gc.ca/8740/eng/tariff.htm

FCC Electronic Tariff Filing System Direct access to the Federal Communications Commission wireline competition bureau pricing policy filings. http://gullfoss2.fcc.gov/prod/ccb/etfs/

International DataBases Call accounting databases with international rating software. http://www.intldb.com/

ITS PortComm Subscription based provider of FCC filings. http://www.itsdocs.com/

Lynx Technologies Subscription based provider of global telecommunications tariff and service information databases. http://www.lynxtech.com/

Magenta Systems Subscription based provider of United Kingdom telecom tariffs. http://www.magsys.co.uk/telecom/

Tarifica Subscription based provider of worldwide telecom tariffs based in London, United Kingdom. A division of PBI Media. http://tarifica.com/

Tele-Tech Services Subscription based provider of telecommunications rate and tariff information. http://www.tariffs.com/

Teligen Subscription based provider of worldwide telecom tariff data located in the United Kingdom. A division of HI Europe. http://www.teligen.com/

Valucom Subscription based provider of telecom tariffs, pricing tools, and tariff-extracted rate data. http://www.tariffnet.com/