Eircode system
E412595
The Eircode system is Ireland’s national postcode system, assigning unique seven-character codes to individual addresses to improve mail delivery and location services.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Eircode | 1 |
| Eircode (company) | 1 |
| Eircode Address Database | 1 |
| Eircode system canonical | 1 |
| Irish Eircode system | 1 |
| Irish national postcode system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4096928 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Eircode system Context triple: [An Post, uses, Eircode system]
-
A.
Irish grid reference system
The Irish grid reference system is a national coordinate framework used to map and locate positions across the island of Ireland with standardized alphanumeric grid references.
-
B.
United Kingdom postcode system
The United Kingdom postcode system is a hierarchical alphanumeric addressing scheme used across the UK to identify specific geographic areas, streets, and individual delivery points for efficient mail sorting and delivery.
-
C.
An Post
An Post is Ireland’s state-owned postal service provider, responsible for nationwide mail delivery, post offices, and related financial and communication services.
-
D.
Dublin Regulation
The Dublin Regulation is an EU law that determines which member state is responsible for examining an asylum application lodged within the European Union.
-
E.
British National Grid
The British National Grid is the Ordnance Survey’s coordinate reference system used to map and locate positions across Great Britain with high precision.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Eircode system Target entity description: The Eircode system is Ireland’s national postcode system, assigning unique seven-character codes to individual addresses to improve mail delivery and location services.
-
A.
Irish grid reference system
The Irish grid reference system is a national coordinate framework used to map and locate positions across the island of Ireland with standardized alphanumeric grid references.
-
B.
United Kingdom postcode system
The United Kingdom postcode system is a hierarchical alphanumeric addressing scheme used across the UK to identify specific geographic areas, streets, and individual delivery points for efficient mail sorting and delivery.
-
C.
An Post
An Post is Ireland’s state-owned postal service provider, responsible for nationwide mail delivery, post offices, and related financial and communication services.
-
D.
Dublin Regulation
The Dublin Regulation is an EU law that determines which member state is responsible for examining an asylum application lodged within the European Union.
-
E.
British National Grid
The British National Grid is the Ordnance Survey’s coordinate reference system used to map and locate positions across Great Britain with high precision.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
national addressing system
ⓘ
postcode system ⓘ |
| administeredBy | Eircode ⓘ |
| appliesTo | Republic of Ireland ⓘ |
| assignsTo |
individual addresses
ⓘ
letterboxes ⓘ |
| availableVia |
API services
ⓘ
online Eircode finder ⓘ |
| characterSet | letters and digits ⓘ |
| codeLength | 7 characters ⓘ |
| codeStructure | three-character routing key followed by four-character unique identifier ⓘ |
| controversy |
criticised for cost of implementation
ⓘ
criticised for design not being fully open ⓘ |
| country | Ireland ⓘ |
| covers |
business addresses
ⓘ
many non-postal delivery points ⓘ public buildings ⓘ residential addresses ⓘ |
| dataProduct |
Eircode Address Database
ⓘ
linked to:
Eircode system
Eircode Address File ⓘ
linked to:
Eircode
|
| designFeature |
allows identification of individual apartments within a building
ⓘ
routing key broadly indicates a postal district or area ⓘ supports geocoding to latitude and longitude ⓘ |
| hasProperty |
codes are fixed to addresses
ⓘ
codes are not sequential by geography ⓘ does not encode townland or county in a human-readable way ⓘ each address has a unique code ⓘ |
| introducedBy | Government of Ireland ⓘ |
| language | English ⓘ |
| launchedOn | 2015-07-13 ⓘ |
| operator | Capita Business Support Services Ireland ⓘ |
| policyContext | introduced after Ireland previously lacked a national postcode system ⓘ |
| purpose |
facilitate address verification
ⓘ
improve location services ⓘ improve mail delivery ⓘ support emergency services location ⓘ support logistics and delivery routing ⓘ |
| regionCodePrefix |
D for many Dublin routing keys
ⓘ
H for many west and northwest routing keys ⓘ V for many south and southeast routing keys ⓘ |
| regulator | Commission for Communications Regulation ⓘ |
| routingKeyLength | 3 characters ⓘ |
| standardFormatExample | A65 F4E2 ⓘ |
| uniqueIdentifierLength | 4 characters ⓘ |
| usedBy |
An Post
ⓘ
courier companies ⓘ emergency services ⓘ satellite navigation providers ⓘ utility companies ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Eircode system Description of subject: The Eircode system is Ireland’s national postcode system, assigning unique seven-character codes to individual addresses to improve mail delivery and location services.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
T12 (Eircode routing area)
linked to: Eircode system
subject linked to:
T12 (Eircode routing area)
linked to: Eircode system
linked to: Eircode system
linked to: Eircode system
subject linked to:
Blackrock
linked to: Eircode system