List of tier 1 internet service providers
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SUMMARY OF TIER-1 ISPs ACROSS THE GLOBE
The following are Tier 1 ISPs (in alphabetical order):
- AT&T
- AOL Transit Data Network (ATDN)
- BBN/Genuity
- British Telecom (BT)
- Cable & Wireless
- Connect Internet Solutions
- Deutsche Telekom
- Global Crossing
- Level 3
- NTT / Verio
- Primus Telecom
- Optus
- Qwest
- Sprint Corporation
- Telstra
- UUNET (subsidiary of MCI)
- Verizon
- Williams Communications
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Regional Tier-1 ISPs
Russia
- Company TransTeleCom (http://www.transtk.ru/www/nsf/esite.nsf/)
- RTCOMM (http://www.rtcom.ru)
Asia
- Reach Global Services Ltd. (http://www.reach.com) (Backbone owned by Telstra and PCCW)
- AsiaNetcom (http://www.asianetcom.com)
Australia
- Agile Communications
- COMindico (http://www.comindico.com.au)
- AAPT (http://www.connect.com.au) (Owned by Telecom New Zealand)
- iPrimus/Primus Telecom (http://www.iprimus.com.au)
- PowerTel/Request (http://www.powertel.com.au)
- Optus (Owned by SingTel)
- Telstra
- MCI / OzEmail
Brazil
- Brasil Telecom - BrT [1] (http://www.brasiltelecom.com.br)
- Embratel [2] (http://www.embratel.com.br)
- Telefonica [3] (http://www.telefonica.com.br)
- Telemar [4] (http://www.telemar.com.br)
Hong Kong
India
- VSNL
- Bharti Infotel Ltd.
- Reliance Infocomm
New Zealand
- Telecom New Zealand
- TelstraClear (Owned by Telstra)
Philippines
- PLDT (http://www.pldt.com.ph)
China
- ChinaTelecom (http://www.chinatelecom.com.cn/english/)
- ChinaNetcom (http://www.chinanetcom.com.cn/en/index.asp)
- ChinaMobile (http://www.chinamobile.com.cn/)
- ChinaUnicom (http://www.chinaunicom.com.cn/chinaunicom/firstlist_0.html)
- ChinaTieTong (http://www.crc.net.cn/english/index.htm)
- ChinaSatcom (http://www.chinasatcom.com/English/index.htm)