Its first service was dialup IP, combined with access to mail and news servers. This was priced at £10 a month (£11.75 including TAX), or as it was described in the sales literature, a 'tenner a month'. They still offer this service at the same price today, but more customers today use the surftime and ADSL packages.
In 1998 it was bought by privatised utility company Scottish Power (now rebranded as Thus).
Demon provides free internet access for Wireless Leiden, a wireless community network, in order to gain experience in this area.
The public telephone number of the company ends with 666 (the supposed Number of the Beast), a deliberate pun on the name Demon.