SICCODE.comSIC LookupE Transportation & Public Utilities48 Communications481 Telephone CommunicationsSIC 4812
SIC Code 4812 – Radiotelephone Communications
Official 4-digit SIC code Source: OSHA SIC Manual Updated Nov 13, 2026
At a glance
Companies
More specific segments
Which businesses belong in SIC 4812?
Usually classified in SIC 4812
- Beeper (radio pager) communications services
- Cellular telephone services
- Paging services: radiotelephone
- Radiotelephone communications
Usually classified elsewhere
- Establishments primarily engaged in furnishing telephone answering services are classified in services, industry 7389.
Official definition for SIC 4812 - Radiotelephone Communications
Establishments primarily engaged in providing two-way radiotelephone communications services, such as cellular telephone services. This industry also includes establishments primarily engaged in providing telephone paging and beeper services and those engaged in leasing telephone lines or other methods of telephone transmission, such as optical fiber lines and microwave or satellite facilities, and reselling the use of such methods to others.
Source: OSHA SIC Manual
Companies in SIC 4812 - Radiotelephone Communications
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Preview · details masked| Company | Contact & title | Website | Phone | Employees |
|---|---|---|---|---|
| Teletouch Paging LP Tyler, TX | ||||
| Cellco Partnership Schaumburg, IL | ||||
| CMB Wireless Group, LLC Bohemia, NY |
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Teletouch Paging LP · Tyler, TX
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Cellco Partnership · Schaumburg, IL
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Key facts for SIC 4812 - Radiotelephone Communications
- SIC code
- 4812
- Official title
- Radiotelephone Communications
- Scope
- OSHA SIC Manual, establishment-level
- Major group
- 48 Communications
- Industry group
- 481 Telephone Communications
- Official source
- OSHA SIC Manual
- Where SIC is used
- Used in SEC filings, government forms, and business lists. See which agencies still use SIC codes →
SIC Classification Hierarchy
Four official SIC levels, plus a more detailed commercial classification level.
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Industry · Official 4-Digit 4812 Radiotelephone Communications
One example classification path is shown. Other branches may exist. The 6-digit Marketing Level is a commercial extension, not an official SIC classification.
Other codes in Industry Group 481: 4813 · Telephone Communications, except Radiotelephone
More specific segments in SIC 4812
Segments let you target only the companies you need. Add one or more to your list to get pricing and a free sample.
33,856 U.S. companies across 13 segments · Segment codes are 6-digit marketing categories that extend the official 4-digit SIC code. They are not official SIC codes.
SIC 4812 is in your list, which already includes all 13 segments.
| Code | Segment | Companies | Build your list |
|---|---|---|---|
| 4812-01 | Paging & Signaling Service-Common Carrier | 4 4 companies | |
| 4812-02 | Paging & Signaling Service-Private Systs | 1 1 company | |
| 4812-03 | Emergency Reporting Systems | 37 37 companies | |
| 4812-04 | Radiotelephone Communications | 74 74 companies | |
| 4812-05 | Mobile Telephone Service | 0 0 companies | |
| 4812-06 | Beepers Equipment ment Service & Repair | 15 15 companies | |
| 4812-07 | Cellular Telephones (Services) | 33,621 33,621 companies | |
| 4812-08 | Marine-Radio Telephone Service | 4 4 companies | |
| 4812-09 | Mobile Radio Emergency Communications | 1 1 company | |
| 4812-10 | Pagers-Sales & Service | 9 9 companies | |
| 4812-11 | Paging Equipment-Sales & Service | 1 1 company | |
| 4812-12 | Paging & Signaling Equipment & Systems | 74 74 companies | |
| 4812-13 | Authorized Retailer-Cellular Services | 15 15 companies |
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Example companies in SIC 4812
See how SICCODE.com evaluates businesses using documented activities and official SIC definitions. Select a company to review its classification and the reasoning behind it.
32,946 verified U.S. companies
- Spok Plano, TX View classification →
- Midwest Paging Jefferson City, MO View classification →
- Valcom Inc Roanoke, VA View classification →
- Aruba Wireless Net Inc Santa Clara, CA View classification →
- Mindwireless Austin, TX View classification →
- EF Johnson Technologies Irving, TX View classification →
- Hosting.com Newark, DE View classification →
- Verizon New York, NY View classification →
NAICS, ISIC and NACE Rev. 2.1 crosswalk for SIC 4812 - Radiotelephone Communications
Correspondences in NAICS, ISIC and NACE Rev. 2.1 (via ISIC) for SIC 4812 - Radiotelephone Communications. These mappings do not replace the official SIC definition.
| System | Code | Title |
|---|---|---|
| SIC This page | 4812 | Radiotelephone Communications |
| NAICS | 517312 | Wireless Telecommunications Carriers (except Satellite) Wireless Telecommunications Carriers (except Satellite) |
| NAICS | 517911 | Telecommunications Resellers Telecommunications Resellers |
| ISIC Rev. 4 | 6120 | Wireless Telecommunications Activities Wireless Telecommunications Activities |
| ISIC Rev. 4 | 6190 | Other Telecommunications Activities Other Telecommunications Activities |
| NACE Rev. 2.1 (via ISIC 6120) | 61.20 | Telecommunication reselling activities and intermediation service activities for telecommunication Telecommunication reselling activities and intermediation service activities for telecommunication |
| NACE Rev. 2.1 (via ISIC 6190) | 61.90 | Other telecommunication activities Other telecommunication activities |
Source: Eurostat, NACE Rev. 2.1 to ISIC Rev. 5 correspondence; United Nations Statistics Division, ISIC Rev. 4 to ISIC Rev. 5 correspondence table.
Sources for SIC 4812
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Official classification source U.S. Occupational Safety and Health Administration.
Standard Industrial Classification Manual (1987), SIC 4812. OSHA SIC Manual → -
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Citations & Academic Recognition · 50+ documented references
About this classification
This page combines the official SIC definition with classification analysis, crosswalks, and SICCODE.com commercial data. Classifications are reviewed regularly by the Industry Classification Review Team.