Exclusion(s): Establishments primarily engaged in:

*providing telecommunications and/or video entertainment services to their customer premises over network facilities operated by them (51711, Wired Telecommunications Carriers); *providing telecommunications and/or video entertainment services to mobile telecommunication devices over network facilities operated by them (51721, Wireless Telecommunications Carriers (except Satellite)); *providing mobile and fixed telecommunications services over satellite network facilities operated by them or by distributing the services of other satellite network operators (51741, Satellite Telecommunications); and *providing expert advice in the field of information technology or in integrating communication and computer systems (54151, Computer Systems Design and Related Services).