SIC 4812 — Radiotelephone Communications
Description & Classification
SIC code 4812 representing 'Radiotelephone Communications' 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 517121 - Telecommunications Resellers (via SIC1987:4812→NAICS1997:51333→2002:517310→2007:517911→2012:517911→2017:517911→2022:517121)
- NAICS 517122 - Agents for Wireless Telecommunications Services (via SIC1987:4812→NAICS1997:51333→2002:517310→2007:517911→2012:517911→2017:517911→2022:517122)
- NAICS 517112 - Wireless Telecommunications Carriers (except Satellite) (via SIC1987:4812→NAICS1997:513322→2002:517212→2007:517210→2012:517210→2017:517312→2022:517112)
Classification Details
| SIC Code | 4812 |
|---|---|
| Industry Title | Radiotelephone Communications |
| 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 4812:
- 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 4812 represent?
SIC 4812 is 'Radiotelephone Communications', 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): 517121 (Telecommunications Resellers), 517122 (Agents for Wireless Telecommunications Services).
What is the modern 2022 NAICS mapping for SIC 4812?
SIC code 4812 maps to modern NAICS codes: 517121 - Telecommunications Resellers, 517122 - Agents for Wireless Telecommunications Services, 517112 - Wireless Telecommunications Carriers (except Satellite).