North American Industry Classification System (NAICS) Canada 2012, extension variant of telecommunication
- 517 - Telecommunication
- 5171 - Wired telecommunication carriers
- 51711 - Wired telecommunication carriers
- 517111 - Wired telecommunications carriers (except cable)
- 517112 - Cable and other program distribution
- 5171121 - Cable television
- 5171122 - Wireless broadcasting distribution
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