Chances are that you’ve used Tellabs equipment without even knowing it. In fact, you may be using Tellabs equipment right now, since we provide technology that enables the Internet to reach you.

Do you use a mobile phone? Half the world’s mobile calls go through networks owned by our customers, the telecom service providers. Our equipment connects regular wired telephones too.

Tellabs products are in the backbone of mobile, landline, cable and Internet networks around the world.

Ever hear of T-Mobile, NTT Communications of Japan, Telstra of Australia, Telkom South Africa or Telecom Italia? They are all Tellabs customers. In fact, 41 of the world’s largest 50 telecom service providers use our products in their networks.

Backing up our equipment are about 3,300 talented employees. Nearly half of our people work in Tellabs research and development centers in North America, Europe and Asia. We have people working in about 80 countries; about 1,000 Tellabs employees are outside the United States. Our global headquarters are outside Chicago in Naperville, Ill.