Optus is the brand name promoted by Sing Tel (Singapore Telecommunications) who in addition to mobile telephony offer fixed lines, internet access, cable TV and data transmission over a mix of their own network infrastructure and rented lines from Telstra Wholesale.

Headquarters: Sydney, Australia

Type of  wireless networks and frequencies Optus operates on:

• GSM / GPRS
• 3G HSPA
• Satelite telephony

Subscribers: 9 Million

Website: optus.com.au

Mobile equipment brands marketed by Optus:

• Blackberry
• Apple iPhone
• Sony Ericsson
• Samsung
• HTC
• Nokia
• LG
• Android
• Huawei

Countries around the world where the Optus brand is present:

• Australia

Related Optus operations overseas:

• SingTel – Singapore
• Advanced Information Services – Thailand
• Bharti Airtel – India
• Globe Telecom – Philippines
• Pacific Bangladesh Telecom – Bangladesh
• Telkomsel – Indonesia
• Warid Telecom – Pakistan