13,000 properties are in the Intervention Area.
Over 1,500 premises in a midlands county can now avail of high-speed broadband.
A total of 13,000 homes, farms and businesses in Offaly are in the 'Intervention Area' of the National Broadband Plan.
The county will see an investment of €48 million euro in the high speed fibre network.
Nationally, there are over 559,000 premises in the 'Intervention Area'.