# Global ISIL Registration Agencies - Official Directory

**Source**: Danish Agency for Culture and Palaces (ISIL Registration Authority)  
**URL**: https://slks.dk/english/work-areas/libraries-and-literature/library-standards/isil  
**Last Updated**: 2025-11-17  
**Standard**: ISO 15511

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## National ISIL Allocation Agencies

| Code | Country | Registration Agency | Registry URL | Data Available |
|------|---------|---------------------|--------------|----------------|
| AR | Argentina | Argentine Standardization and Certification Institute (IRAM) | http://www.iram.org.ar/ | ❌ No list |
| AT | Austria | Die Österreichische Bibliothekenverbund und Service GmbH | https://www.isil.at/ | ✅ Searchable |
| AU | Australia | National Library of Australia | http://www.nla.gov.au/apps/ilrs | ✅ Searchable |
| BE | Belgium | Royal Library of Belgium (KBR) | http://isil.kbr.be/ | ✅ Searchable (438 extracted) |
| BY | Belarus | National Library of Belarus | https://nlb.by/en/for-librarians/international-standard-identifier-for-libraries-and-related-organizations-isil/list-of-libraries-organizations-of-the-republic-of-belarus-and-their-isil-codes | ✅ List available (167 extracted) |
| BG | Bulgaria | National Library of Bulgaria | http://www.nationallibrary.bg/wp/?page_id=5686 | ✅ Searchable |
| BO | Bosnia and Herzegovina | National and University Library of Bosnia and Herzegovina | ❓ Search mentioned but no URL | ⏳ To investigate |
| CA | Canada | Library and Archives Canada | https://sigles-symbols.bac-lac.gc.ca/eng/Search | ✅ Searchable |
| CH | Switzerland | Swiss National Library | https://www.isil.nb.admin.ch/en/ | ✅ Searchable |
| CY | Cyprus | Cyprus University of Technology – Library | http://library.cut.ac.cy/en/node/1194 | ✅ List available |
| CZ | Czech Republic | National Library of the Czech Republic | https://aleph.nkp.cz/F/?func=file&file_name=find-b&CON_LNG=ENG&local_base=adr | ✅ Searchable |
| DE | Germany | Staatsbibliothek zu Berlin | https://sigel.staatsbibliothek-berlin.de/suche | ✅ Searchable |
| DK | Denmark | Danish Agency for Culture and Palaces | https://slks.dk/omraader/kulturinstitutioner/biblioteker/biblioteksstandardisering/biblioteksnumre/biblioteker-i-danmark-med-biblioteksnumre | ✅ List available |
| EG | Egypt | Egyptian National Scientific and Technical Information Network (ENSTINET) | http://cdex5.sti.sci.eg/dev60cgi/f60cgi?form=DEGL_WEB_SEARCH&userid=degl/degl@sti | ✅ Searchable |
| FI | Finland | The National Library of Finland | http://isil.kansalliskirjasto.fi/en/ | ✅ Search mentioned |
| FR | France | Agence Bibliographique de l'Enseignement Superieur | http://www.sudoc.abes.fr/ | ✅ Searchable |
| GB | United Kingdom | British Library | https://www.bl.uk/more/collection-metadata-services/ | ⚠️ Currently offline (cyber attack Oct 2023) |
| GL | Greenland | Central and Public Library of Greenland | https://www.katak.gl/ | ❌ No list |
| HR | Croatia (Republika Hrvatska) | Nacionalna i sveučilišna knjižnica u Zagrebu | https://nsk.hr/en/ | ✅ List mentioned |
| HU | Hungary | National Széchényi Library | https://ki.oszk.hu/dokumentumtar/isil-azonositok | ✅ List available |
| IL | Israel | National Library of Israel | http://nli.org.il | ✅ List available |
| IR | Iran | National Library and Archives of Islamic Republic of Iran | ❌ No URL | ❌ No list |
| IT | Italy | Istituto Centrale per il Catalogo Unico | http://anagrafe.iccu.sbn.it/ | ✅ Searchable |
| JP | Japan | National Diet Library | http://www.ndl.go.jp/en/library/isil/index.html#isillist | ✅ List available |
| KR | South Korea | The National Library of Korea | https://www.nl.go.kr/ | ❌ No list (but registry exists at https://librarian.nl.go.kr/) |
| KZ | Kazakhstan | National Library of the Republic of Kazakhstan | https://www.nlrk.kz/index.php?lang=en | ❌ No list |
| LU | Luxembourg | Archives nationales de Luxembourg | http://www.anlux.public.lu/fr/nous-connaitre/reseaux-internationaux/ISIL.html | ✅ List available |
| MD | Moldova | National Library of the Republic of Moldova | http://bnrm.md/ | ❌ No list |
| NL | Netherlands | Koninklijke Bibliotheek (KB) | https://www.bibliotheeknetwerk.nl/landelijke-digitale-infrastructuur-ldi/isil-codes | ✅ Search (153 public libraries extracted) |
| NO | Norway | National Library of Norway | http://www.nb.no/baser/bibliotek/english.html | ✅ Searchable |
| NP | Nepal | ❓ No agency listed | ❌ No URL | ❌ No list |
| NZ | New Zealand | National Library of New Zealand Te Puna Matauranga o Aotearoa | http://natlib.govt.nz/ | ✅ Search mentioned |
| QA | Qatar | Qatar National Library (QNL) | http://www.qnl.qa/find-answers/other-libraries/ | ✅ Searchable |
| RO | Romania | National Library of Romania | https://bibnat.ro/ | ✅ Searchable |
| RU | Russia | Russian National Public Library for Science and Technology | http://www.gpntb.ru/rfid1/searchdb.php | ✅ Searchable |
| SI | Slovenia | National and University Library | https://www.nuk.uni-lj.si/eng/node/543 | ✅ List mentioned |
| SK | Slovakia | Slovak National Library | http://www.snk.sk/en/information-for/libraries-and-librarians/isil.html | ✅ List mentioned |
| US | United States | Library of Congress | http://www.loc.gov/marc/organizations/ | ✅ Searchable |

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## Non-National ISIL Allocation Agencies

| Code | Organization | Description | Registry URL | Data Available |
|------|--------------|-------------|--------------|----------------|
| EUR | European organizations | Common European organizations | https://www.eui.eu/Documents/Research/HistoricalArchivesofEU/ISIL/isil-directory.pdf | ✅ List (PDF) |
| GTB | GTBib | Directorio GTBib de centros de prestamo interbibliotecario | https://directorio.gtbib.net/lista_isil | ✅ List available |
| O | OCLC | Letter O for OCLC technical encoding (RFID tags) | http://www.oclc.org/contacts/libraries/ | ✅ Searchable |
| OCLC | OCLC WorldCat | WorldCat Symbol | http://www.oclc.org/contacts/libraries/ | ✅ Searchable |
| ZDB | Zeitschriftendatenbank | Staatsbibliothek zu Berlin - Journal database | https://zdb-katalog.de/index.xhtml | ✅ Searchable |

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## Summary Statistics

**Total National Agencies**: 41 countries  
**Agencies with Searchable Registries**: 30+ countries (73%)  
**Agencies with Direct Lists**: 12+ countries  
**Agencies without Public Access**: 8 countries (AR, GL, IR, KZ, MD, NP, partial KR)  

**Extraction Status**:
- ✅ **Extracted**: Belgium (438), Belarus (167), Netherlands (153 public libraries)
- ⏳ **To Extract**: Austria, Australia, Bulgaria, Canada, Switzerland, Cyprus, Czech Republic, Germany, Denmark, Egypt, Finland, France, Croatia, Hungary, Israel, Italy, Japan, Luxembourg, Norway, New Zealand, Qatar, Romania, Russia, Slovenia, Slovakia, USA
- ⚠️ **Blocked/Offline**: United Kingdom (British Library cyber attack)
- ❌ **No Public Access**: Argentina, Greenland, Iran, Kazakhstan, Moldova, Nepal

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## Priority Extraction Targets

### Tier 1: Large datasets with direct list access
1. **USA** - Library of Congress MARC Organizations (thousands of institutions)
2. **Germany** - Staatsbibliothek zu Berlin (Sigel database, ~10,000 institutions)
3. **France** - SUDOC (university and research libraries)
4. **Italy** - ICCU Anagrafe (national library catalog)
5. **Japan** - National Diet Library (comprehensive list)

### Tier 2: Medium datasets with searchable interfaces
6. **Canada** - Library and Archives Canada
7. **Australia** - National Library of Australia
8. **Switzerland** - Swiss National Library
9. **Austria** - Austrian Library Network
10. **Czech Republic** - National Library of the Czech Republic

### Tier 3: Smaller datasets with list access
11. **Denmark** - Danish Agency for Culture and Palaces
12. **Finland** - National Library of Finland
13. **Hungary** - National Széchényi Library
14. **Israel** - National Library of Israel
15. **Luxembourg** - Archives nationales de Luxembourg
16. **Cyprus** - Cyprus University of Technology
17. **Bulgaria** - National Library of Bulgaria
18. **Croatia** - National and University Library
19. **Norway** - National Library of Norway
20. **Slovenia** - National and University Library
21. **Slovakia** - Slovak National Library
22. **Romania** - National Library of Romania
23. **Russia** - Russian National Public Library
24. **New Zealand** - National Library of New Zealand
25. **Qatar** - Qatar National Library

### Tier 4: To investigate (no clear access method)
- Bosnia and Herzegovina
- South Korea (secondary registry exists)
- Egypt (search interface unclear)

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## Notes

**British Library Status**: The British Library ISIL directory is currently offline due to a cyber attack in October 2023. Links are temporarily unavailable.

**South Korea Alternate Registry**: While the official National Library of Korea doesn't list an ISIL directory URL, a secondary registry exists at https://librarian.nl.go.kr/ (discovered via Exa search in previous session).

**ISO 3166-1 Compliance**: ISIL country codes use ISO 3166-1 alpha-2 standard (https://www.iso.org/iso-3166-country-codes.html).

**ISIL Standard**: Full standard document available for purchase at https://www.iso.org/standard/77849.html (ISO 15511:2019).

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## Data Sources

**Primary Source**: Danish Agency for Culture and Palaces  
- Official ISIL Registration Authority
- Maintains global directory of national agencies
- Contact: ISIL@slks.dk

**Standard Documentation**:
- ISO 15511:2019 - International Standard Identifier for Libraries and Related Organizations
- Developed by ISO TC 46/SC 4 (Technical Interoperability)

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## Next Steps

1. **Scraper Development**: Create scrapers for Tier 1 targets (USA, Germany, France, Italy, Japan)
2. **API Investigation**: Check if any registries offer REST APIs or bulk downloads
3. **Contact Registry Agencies**: For registries without public lists, contact agencies for bulk data access
4. **Cross-reference**: Compare ISIL data with existing datasets (Wikidata, OpenStreetMap)
5. **Quality Assurance**: Validate ISIL code formats and detect duplicates