| 517111 |
Cable program distribution operators |
| 517111 |
Cable television distribution services |
| 517111 |
Cable TV providers (except networks) |
| 517111 |
Closed-circuit television (CCTV) services |
| 517111 |
Direct broadcast satellite (DBS) services |
| 517111 |
Direct-to-home satellite system (DTH) services |
| 517111 |
Internet service providers, using own operated wired telecommunications infrastructure (e.g., cable, DSL) |
| 517111 |
Local telephone carriers, wired |
| 517111 |
Long-distance telephone carriers, wired |
| 517111 |
Multichannel multipoint distribution services (MMDS) |