# callSign - Schema.org Property

> Source: https://schema.org/callSign
> Extracted: 2026-02-16T15:55:23.719Z

---

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A Schema.org Property

*This term is in the "new" area - implementation feedback and adoption from applications and websites can help improve our definitions.*

A [callsign](https://en.wikipedia.org/wiki/Call_sign), as used in broadcasting and radio communications to identify people, radio and TV stations, or vehicles.

### Values expected to be one of these types

`-   [Text](https://schema.org/Text "Text")`

#### Source

[https://github.com/schemaorg/schemaorg/issues/2109](https://github.com/schemaorg/schemaorg/issues/2109)

  

### Examples

Example notes or example HTML without markup.

See JSON example.

Example encoded as [JSON-LD](https://en.wikipedia.org/wiki/JSON-LD) in a HTML script tag.

<script type="application/ld+json">
{
  "@context": "https://schema.org/",
  "@type": "RadioBroadcastService",
  "name": "NPR Boston",
  "callSign": "WBUR"
}
</script>

Structured representation of the JSON-LD example.