{
  "@context": [
    "https://schema.org",
    {
      "ec": "https://entitycodes.org/vocab#"
    }
  ],
  "@type": "DefinedTerm",
  "@id": "https://entitycodes.org/sic/4812/",
  "identifier": "4812",
  "name": "Radiotelephone Communications",
  "description": "Standard Industrial Classification (SIC) code 4812: Radiotelephone Communications.",
  "url": "https://entitycodes.org/sic/4812/",
  "inDefinedTermSet": {
    "@type": "DefinedTermSet",
    "name": "SIC 1987",
    "url": "https://entitycodes.org/sic/"
  },
  "sameAs": [
    "https://www.osha.gov/data/sic-manual"
  ],
  "additionalProperty": [
    {
      "@type": "PropertyValue",
      "name": "SIC division",
      "value": "Division E: Transportation, Communications, Electric, Gas, and Sanitary Services"
    },
    {
      "@type": "PropertyValue",
      "name": "SIC major group",
      "value": "Major Group 48: Communications"
    }
  ],
  "ec:crosswalk": [
    {
      "system": "NAICS 2022",
      "code": "517121",
      "title": "Telecommunications Resellers",
      "confidence": "chain",
      "via": "SIC1987:4812\u2192NAICS1997:51333\u21922002:517310\u21922007:517911\u21922012:517911\u21922017:517911\u21922022:517121",
      "url": "https://entitycodes.org/naics/517121/"
    },
    {
      "system": "NAICS 2022",
      "code": "517122",
      "title": "Agents for Wireless Telecommunications Services",
      "confidence": "chain",
      "via": "SIC1987:4812\u2192NAICS1997:51333\u21922002:517310\u21922007:517911\u21922012:517911\u21922017:517911\u21922022:517122",
      "url": "https://entitycodes.org/naics/517122/"
    },
    {
      "system": "NAICS 2022",
      "code": "517112",
      "title": "Wireless Telecommunications Carriers (except Satellite)",
      "confidence": "chain",
      "via": "SIC1987:4812\u2192NAICS1997:513322\u21922002:517212\u21922007:517210\u21922012:517210\u21922017:517312\u21922022:517112",
      "url": "https://entitycodes.org/naics/517112/"
    }
  ],
  "ec:provenance": {
    "definition": {
      "source": "US OSHA 1987 SIC Manual",
      "type": "US gov \u2014 public domain"
    },
    "crosswalk": {
      "source": "Census NAICS\u2194SIC concordance",
      "method": "transitive chain (NOT direct)"
    }
  },
  "license": "https://www.usa.gov/government-works",
  "dateModified": "2026-07-21",
  "isPartOf": {
    "@type": "DefinedTerm",
    "identifier": "Major Group 48: Communications",
    "name": "SIC Major Group Major Group 48: Communications",
    "@id": "https://entitycodes.org/sic/group/Major Group 48: Communications/"
  }
}