This means residents and businesses will have access to some of the fastest, most reliable broadband in Europe.
The full fibre broadband upgrade will enable thousands of people to connect multiple devices at gigabit-capable speeds.
It will also help businesses to trade online and compete for decades to come.
The build is expected to reach the majority of local homes and businesses.
Openreach begins full fibre broadband upgrade for Swanage residents(Image: Phil Wilkinson)
This fibre technology offers more reliable, resilient connectivity, with fewer faults and more consistent speeds.
It will improve every online experience, from seamless streaming and gaming for households to smooth video calls and customer interactions for businesses.
Martin Williams, Openreach partnership director, said: “We’re bringing full fibre broadband to Swanage and letting local people know what to expect.
“This is a major infrastructure upgrade, so there will be more engineering teams, equipment and vans around town, and we’re working hard to keep disruption to a minimum.
“Wherever possible, we’ll use our existing network of ducts and poles to avoid roadworks, new street furniture and disturbance.
“But there may be places where we need to install new poles, underground ducts and fibre cables because it’s the only way to make sure households get included in the upgrade.”