SIC 4899 — Communications Services, NEC
Description & Classification
SIC code 4899 representing 'Communications Services, NEC' is an industry category in the Standard Industrial Classification (SIC) system under U.S. OSHA and Federal procurement registers.
Modern NAICS Crosswalk
Trace the modern equivalent classifications in the 2022 North American Industry Classification System (NAICS) database:
- NAICS 517810 - All Other Telecommunications (via SIC1987:4899→NAICS1997:51339→2002:517910→2007:517919→2012:517919→2017:517919→2022:517810)
- NAICS 517122 - Agents for Wireless Telecommunications Services (via SIC1987:4899→NAICS1997:513322→2002:517212→2007:517210→2012:517210→2017:517312→2022:517122)
- NAICS 517112 - Wireless Telecommunications Carriers (except Satellite) (via SIC1987:4899→NAICS1997:513322→2002:517212→2007:517210→2012:517210→2017:517312→2022:517112)
- NAICS 517410 - Satellite Telecommunications (via SIC1987:4899→NAICS1997:51334→2002:517410→2007:517410→2012:517410→2017:517410→2022:517410)
- NAICS 485310 - Taxi and Ridesharing Services (via SIC1987:4899→NAICS1997:48531→2002:485310→2007:485310→2012:485310→2017:485310→2022:485310)
Classification Details
| SIC Code | 4899 |
|---|---|
| Industry Title | Communications Services, NEC |
| Division | Division E: Transportation, Communications, Electric, Gas, and Sanitary Services |
| Major Group | Major Group 48: Communications |
| Source / Verified | US Census 1987 SIC Concordance / 2026-06-28 |
Related Resources & Compliance Guides
Further regulatory reference links for legacy SIC code 4899:
- SIC Codes Complete Compliance Guide — Detailed history and active legal applications of the SIC classification framework.
- Why Legacy SIC Codes Persist Guide — How credit systems and the SEC still rely on SIC metadata.
- SIC ↔ NAICS Crosswalk Tool — Trace industrial code conversions dynamically.
- SIC Major Group 48 Hub — View other legacy industries in this business division.
Related Industries in Major Group 48
Frequently Asked Questions (FAQ)
What industry does SIC code 4899 represent?
SIC 4899 is 'Communications Services, NEC', a 4-digit Standard Industrial Classification (SIC) code under Major Group 48: Communications (Division E: Transportation, Communications, Electric, Gas, and Sanitary Services); it maps to modern 2022 NAICS code(s): 517810 (All Other Telecommunications), 517122 (Agents for Wireless Telecommunications Services).
What is the modern 2022 NAICS mapping for SIC 4899?
SIC code 4899 maps to modern NAICS codes: 517810 - All Other Telecommunications, 517122 - Agents for Wireless Telecommunications Services, 517112 - Wireless Telecommunications Carriers (except Satellite), 517410 - Satellite Telecommunications, 485310 - Taxi and Ridesharing Services.