DS3 bandwidth has its origins in the telecommunications industry. It was developed as an improvement over T1 lines, offering higher capacity and faster data transmission rates. DS3 lines are commonly used for various purposes, such as connecting large networks, providing internet access to businesses, and supporting high-demand applications like video streaming and cloud computing.

In terms of use case examples, DS3 bandwidth can be used by internet service providers (ISPs) to offer high-speed internet connections to businesses or residential areas. It can also be used by large enterprises to connect multiple locations or data centers, ensuring reliable and fast communication between them.

When it comes to pricing, the cost of DS3 bandwidth can vary depending on factors such as the location, service provider, and the specific terms of the contract. Generally, DS3 lines are more expensive than T1 lines due to their higher capacity. It is advisable to contact different service providers and compare their offerings to get the best pricing for your specific needs.