Property talk:P2979

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maritime identification digits
identifier used by radio communication facilities to identify their home country or base area in messages as part of their Maritime Mobile Service Identities

Represents	maritime identification digits (Q1435632)
Data type	String
Domain	According to this template: country (Q6256) According to statements in the property: country (Q6256)territory (Q183366) or territory (Q4835091) When possible, data should only be stored as statements
Allowed values	[2-7]\d{2}
Example	Austria (Q40) → 203 Vietnam (Q881) → 574 Cyprus (Q229) → 209 210 Czech Republic (Q213) → 270
Source	https://www.itu.int/en/ITU-R/terrestrial/fmd/Pages/mid.aspx https://www.itu.int/gladapp/Allocation/MIDs
Tracking: usage	Category:Pages using Wikidata property P2979 (Q62809244)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Mix'n'match (Report) Database reports/Constraint violations/P2979 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 301 Main statement 296 98.3% of uses Qualifier 5 1.7% of uses
Search for values

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Distinct values: this property likely contains a value that is different from all other items. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). Known exceptions: Caribbean Netherlands (Q27561), Curaçao (Q25279), Sint Maarten (Q26273), Amsterdam Islands (Q194215), Île Saint-Paul (Q204821)
List of violations of this constraint: Database reports/Constraint violations/P2979#Unique value, SPARQL (every item), SPARQL (by value)

Type “country (Q6256)”: item must contain property “instance of (P31)” with classes “country (Q6256)” or their subclasses (defined using subclass of (P279)). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). Known exceptions: Antarctic Treaty area (Q21590062), Caribbean Netherlands (Q27561), Curaçao (Q25279), Sint Maarten (Q26273)
List of violations of this constraint: Database reports/Constraint violations/P2979#Type Q6256, SPARQL

Format “[2-7][0-7][0-9]”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P2979#Format, hourly updated report, SPARQL

Scope is as main value (Q54828448): the property must be used by specified way only (Help)

List of violations of this constraint: Database reports/Constraint violations/P2979#Scope, hourly updated report, SPARQL

Type “territory (Q183366), territory (Q4835091)”: item must contain property “instance of (P31)” with classes “territory (Q183366), territory (Q4835091)” or their subclasses (defined using subclass of (P279)). (Help)

List of violations of this constraint: Database reports/Constraint violations/P2979#Type Q183366, Q4835091, hourly updated report, SPARQL