Complex sentence: The nearby villages of Lamphey, Castlemartin and Angle have their own telephone exchanges which offer residents download speeds of between 6.0 and 8.0 Mbit/s depending on their proximity to the exchange.
Split into simpler sentences: The nearby villages of Lamphey, Castlemartin and Angle have their own telephone exchanges. These provide customers with download speeds of between 6.0 and 8.0 Mbit/s depending on their proximity to the exchange.