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 (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
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
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)
Suggested Product Service Codes (Advisory)
The following Product Service Codes (PSCs) are advisory suggestions aligned with this NAICS code. Note: NAICS and PSC codes map to different dimensions of procurement (industry vs. product/service). There is no official binding 1:1 crosswalk.
- PSC 5820 — Radio and Television Communication Equipment, Except Airborne
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 517111 valid in 2022? ▾
Yes, 517111 is a valid 6-digit 2022 NAICS national industry code representing 'Wired Telecommunications Carriers' under Sector 51 in the official classification index.
What is the SBA size standard for NAICS code 517111? ▾
The Small Business Administration (SBA) has established a small business size standard of 1,500 employees for NAICS code 517111 (Wired Telecommunications Carriers), calculated based on employees.
What is the legacy SIC equivalent for NAICS 517111? ▾
According to official Census Bureau concordance tables, NAICS code 517111 (Wired Telecommunications Carriers) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 4813 - Telephone Communications, Except Radiotelephone, 4822 - Telegraph and Other Message Communications, 4841 - Cable and Other Pay Television Services, 7375 - Information Retrieval Services.
Related Pages & Tools
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.
- NAICS 517111 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Wired Telecommunications Carriers).
- 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.