|Founded||1 June 1992|
|Products||Business Fixed line, Internet services and IT Support|
In 1998 Demon was bought by Scottish Telecom, a wholly owned subsidiary of the private utility company Scottish Power. Scottish Telecom rebranded as Thus plc in October 1999 and floated on the London Stock Exchange. Thus plc fully demerged from Scottish Power in 2002. Thus became part of Cable & Wireless plc, and then part of Cable & Wireless Worldwide following a split of its parent. The company was purchased as part of the acquisition of Cable & Wireless Worldwide by Vodafone Group on 27 July 2012. Demon now operates as a brand of Vodafone.
The public telephone number of the company, and many of the dialup access numbers, end with 666 (the supposed Number of the Beast), a deliberate pun on the name Demon. When Thus plc was formed as a parent of Demon, its randomly allocated company number also ended in 666. Also, after a spate of "access" related names (e.g. gate, post) many of its original servers' hostnames started with dis, being the initial letters of Demon Internet Services as well as the name of a part of Hell in Dante's Inferno and another name for Lucifer.
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Demon Internet was born out of Demon Systems, a bespoke business software development company formed by Cliff Stanford, Grahame Davies and Owen Manderfield. In a discussion of the need for a home-oriented dialup IP service on the CIX boards, Stanford suggested that if 200 people stepped up with a year's subscription, he would use Demon's infrastructure to create such a service.
Dismissing the idea that the Demon name might upset those with religious convictions, Cliff Stanford laughingly said he had considered getting the numbers "666" incorporated in the dial up.
The original Demon service was hosted using mainly Apricot servers including a gigantic pair of LSI towers named "gate" and "post".
When Demon started, WinSock was still a new concept. Most PC users had to use "KA9Q" or "NOS" - a command line style client - to establish their TCP/IP connection to use ftp, gopher, telnet, etc. The Worldwide Web had not yet arrived.
In the early days MS-DOS users were expected to download Internet connection software based on the KA9Q implementation of TCP/IP. Other platforms able to connect to the service included OS/2 Warp, Amiga, Archimedes, Atari, Linux and Mac. In 1995 the company acquired Chris Hall and Richard Clayton's Turnpike suite for Windows.
Its first service was the "standard dial-up" (SDU) - full TCP/IP access on a static IP address with a user chosen 4 to 8 character "nodename" (later 3-16 character "hostname") in the .demon.co.uk domain e.g. example.demon.co.uk. This allowed users to receive SMTP mail and other IP traffic direct to their computers. It was possible to operate independently of Demon or to make use of Demon's mail, news and IRC servers.
Demon was the first ISP to pioneer SDU service priced at £10 a month plus VAT, described in the sales literature as a "tenner a month". The low price attracted enough new customers that it was profitable and served to expand Internet usage in the UK. Demon still offers SDU service at the same price today but many customers today use ADSL ("broadband").
Demon Internet received a healthy boost in user numbers when the UK Internet Book, written by pioneering internet writer Sue Schofield, negotiated with Demon in 1993/1994 to include a discount coupon in the book for newcomers to Demon. The book needed a change to Demon's mail systems. Schofield demanded and got a POP3 mail option added to the Demon service. The book sold 15,000 copies off the first print run, many readers subscribing to Demon.
Thanks to Demon Systems, Demon Internet always had a strong programming team allowing it to create solutions to emerging issues in-house. All three directors were programmers and Stanford wrote many business-critical pieces of software, writing modules to adapt MMDF to Demon's purposes. Mark Turner, originally one of Demon System's developers, wrote many of the accounts and operational systems. As Stanford was increasingly absorbed with corporate activities, Neil McRae eventually took over the work on the mail system. Oliver Smith moved from Systems to Internet to run and automate services for corporate customers. Later on, Peter Galbavy was brought in to develop solutions for interoperability issues and Ronald Khoo developed low-level networking solutions that allowed the company to run on free operating systems and PC-based hardware.
Many other key Demon people started out as developers - Giles Todd, Clive Feather, Richard Clayton.
Armed with so many developers, many of whom made names for themselves within the developing industry, Stanford used the company's ability to contribute its developments to the Open Source community as a means of developing Demon's reputation beyond what its actual Internet Service commanded.
Demon's home-dialup focus was also its Achilles heel. The company had some exposure after sponsoring Fulham F.C., but British Telecom were sceptical of Demon's projected growth and did not provide for expansion, resulting in a regular shortage of lines and regular redigs of the top end of Hendon Lane, Finchley, north London to lay down additional cables. Demon moved initially to Energis lines with a Regionally Organised Modem Pool (ROMP) and later added Colt lines to the service so they had more control over which lines new customers used over separate 0845 numbers.
In 1995, Demon acquired a 25% stake in competing UK internet provider Cityscape Internet Services, as part of a deal to move Cityscape's backbone from Pipex to Demon. On 29 September, they acquired the remaining 75% of the company.
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In June 2008 Cable & Wireless plc made a predatory offer for Demon's parent, Thus. On 1 October 2008, Cable & Wireless completed the takeover of Thus.
Cable & Wireless split into two separate businesses on 26 March 2010. Thus and Demon came under the ownership of the original business, which was renamed Cable & Wireless Worldwide. This was purchased by Vodafone in July 2012 which began integrating the business with its own. Thus and Demon were integrated into Vodafone on 1 April 2013.
During 2016, the Demon Internet service was slowly wound down with a view to migrating customers over to Vodafone branded products.
- Serial Line Internet Protocol
- Point-to-Point Protocol
- Simple Mail Transfer Protocol
- Post Office Protocol
- Cliff Stanford
- Godfrey v Demon Internet Service
- XS4ALL company news item
- "Configuring and using Demon KA9Q for MS-DOS". leverton.org.
- "CITYSCAPE DROPS PIPEX FOR DEMON DEAL" Retrieved 15 March 2014
- "Demon Internet Limited stock issue values Demon at 26.7 million pounds" Retrieved 6 June 2011
- "Even a millionaire has his demons" Retrieved 6 June 2011
- "Changes to your invoices" (PDF). Vodafone. April 2013. Retrieved 17 April 2013.
- "QuakeNet IRC Network - Error 404". quakenet.org.
- "efnet.demon.co.uk and hub.uk delinks - EFnet IRC Network Forum". efnet.org.
- Demon.net - official website