CityFibre has begun work to connect more than 57,000 homes and businesses across areas of East and West Sussex to full fibre broadband as part of a £108m Project Gigabit award.
Lightning Fibre has made its network builds across Brighton and Hove, Worthing and Lancing ready for service and has connected its first customer in the region.
The altnet operates its own network in Eastbourne, Hastings, Hailsham, Heathfield, Tenterden, Broad Oak, Polegate and St Leonards and has recently partnered with CityFibre to operate as an ISP across its network in some areas on the south coast.
Rob Reaks, CCO, said: "Lightning Fibre has tens of thousands of customers in East Sussex and Kent, and we're now expanding westward, bringing our network to even more towns and cities.”