517111 — Wired Telecommunications Carriers
Description
This U.S. industry comprises establishments primarily engaged in operating, maintaining, and/or providing access to transmission facilities and infrastructure that they own and/or lease for the transmission of voice, data, text, sound, and video using wired telecommunications networks. Transmission facilities may be based on a single technology or a combination of technologies. Establishments in this industry use the wired telecommunications network facilities that they operate to provide a variety of services, such as wired telephony services, including VoIP services; wired (cable) audio and video programming distribution; and wired broadband Internet services. By exception, establishments providing satellite television distribution services using facilities and infrastructure that they operate are included in this industry.
Illustrative Examples
- Broadband Internet service providers, wired (e.g., cable, DSL)
- Cable television distribution services
- Closed-circuit television (CCTV) services
- Direct-to-home satellite system (DTH) services
- Local telephone carriers, wired
- Long-distance telephone carriers, wired
- Multichannel multipoint distribution services (MMDS)
- Satellite television distribution systems
- Telecommunications carriers, wired
- VoIP service providers, using own operated wired telecommunications infrastructure
Overview Facts
| NAICS Code | 517111 |
|---|---|
| Industry Title | Wired Telecommunications Carriers |
| SBA Size Standard | 1,500 employees |
| IRS PBA Code | 517000 (rolled-up match) |
| Sectors Hierarchy | Sector 51 → 517 → 5171 |
| Source / Verified | US Census 2022 NAICS Manual / 2026-06-28 |
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 4813 - Telephone Communications, Except Radiotelephone (via SIC1987:4813→NAICS1997:51331→2002:517110→2007:517110→2012:517110→2017:517311→2022:517111)
- SIC 4822 - Telegraph and Other Message Communications (via SIC1987:4822→NAICS1997:51331→2002:517110→2007:517110→2012:517110→2017:517311→2022:517111)
- SIC 4841 - Cable and Other Pay Television Services (via SIC1987:4841→NAICS1997:51322→2002:517510→2007:517110→2012:517110→2017:517311→2022:517111)
- SIC 7375 - Information Retrieval Services (via SIC1987:7375→NAICS1997:514191→2002:518111→2007:517110→2012:517110→2017:517311→2022:517111)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 517111:
- Sector 51 Directory Hub — List of related industries in the Information sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.
Related Industries in 5171
Frequently Asked Questions (FAQ)
Is 517111 a valid 2022 NAICS code?
NAICS 517111 is 'Wired Telecommunications Carriers', a 2022 U.S. national industry under Sector 51 (Information); the SBA small-business size standard is 1,500 employees.
What is the SBA size standard for NAICS 517111?
The SBA small business size standard for NAICS 517111 is 1,500 employees (based on employees).
What is the legacy SIC code mapping for 517111?
NAICS code 517111 maps to the legacy 1987 SIC codes: 4813 - Telephone Communications, Except Radiotelephone, 4822 - Telegraph and Other Message Communications, 4841 - Cable and Other Pay Television Services, 7375 - Information Retrieval Services.