Countries and territories
ID formats
Browse public ID format masks from official or professionally reviewed sources. The directory lists only publicly verified references.
38 countries and territories with format-reference pages
A format is not identity verification
A public format can explain input, but it cannot prove an identity or document is valid. These pages show masked synthetic examples; use an authorized service when identity proofing is required.
Read the ID-format safety guide →38 of 38 results
- ARArgentinaDocumento Nacional de Identidad · Professional reference format
- AUAustraliaTax File Number · Official public format
- BRBrazilCadastro de Pessoas Físicas · Official public format
- CACanadaSocial Insurance Number · Official public format
- CLChileRol Único Tributario · Professional reference format
- CNChinaResident Identity Card Number · Official public format
- COColombiaCédula de Ciudadanía · Official public format
- ECEcuadorCédula de Identidad · Professional reference format
- ETEthiopiaFayda ID Number · Official public format
- FRFranceNuméro d'inscription au répertoire · Official public format
- DEGermanySteueridentifikationsnummer · Official public format
- GHGhanaGhana Card Number · Official public format
- INIndiaAadhaar Number · Official public format
- IDIndonesiaNomor Induk Kependudukan · Official public format
- ITItalyCodice Fiscale · Official public format
- JPJapanMy Number · Official public format
- MYMalaysiaNational Registration Identity Card Number · Official public format
- MXMexicoClave Única de Registro de Población · Official public format
- NPNepalNational ID Number · Official public format
- NLNetherlandsBurgerservicenummer · Professional reference format
- NGNigeriaNational Identification Number · Official public format
- PKPakistanComputerized National Identity Card · Official public format
- PEPeruCédula Única de Identidad · Professional reference format
- PHPhilippinesPhilSys Number · Official public format
- PLPolandPESEL · Official public format
- RORomaniaCod Numeric Personal · Professional reference format
- RURussiaSNILS · Official public format
- SASaudi ArabiaNational ID Number · Official public format
- ZASouth AfricaSouth African ID Number · Official public format
- KRSouth KoreaResident Registration Number · Official public format
- ESSpainDocumento Nacional de Identidad · Official public format
- TWTaiwanNational ID Card Number · Official public format
- THThailandThai Citizen ID · Official public format
- TRTürkiyeT.C. Kimlik No · Official public format
- UAUkraineRNOKPP · Professional reference format
- GBUnited KingdomNational Insurance Number · Official public format
- USUnited StatesSocial Security Number · Official public format
- VNVietnamPersonal Identification Number · Official public format
Data provenance
Sources
- UIDAI: Aadhaar features
- Beijing Public Security Bureau: resident ID number
- Social Security Administration: SSN format
- Dukcapil Klaten: 16-digit NIK
- NADRA: 13-digit identity number
- Nigeria National Bureau of Statistics: NIN format
- Brazilian government: national ID CPF format
- Federal Tax Service: SNILS format
- Ethiopia National ID Program: Fayda number
- RENAPO: CURP composition
- Japan Digital Agency: My Number FAQ
- PhilSys: national ID reference
- Vietnam Ministry of Public Security: personal ID structure
- KVKK: national ID number guide
- BZSt: tax ID FAQ
- DOPA: citizen ID number
- HMRC: National Insurance number format
- Assurance Maladie: social security number
- South African Revenue Service: ID number format
- Agenzia delle Entrate: Codice Fiscale guide
- Agenzia delle Entrate: individual and other tax codes
- Registraduría: 10-digit NUIP scope
- Ministry of the Interior and Safety: resident number
- Ministry of the Interior: DNI check letter
- OpenText Supported National ID Numbers
- python-stdnum: ar.dni
- Government of Canada: Social Insurance Number
- python-stdnum: ua.rntrc
- gov.pl: PESEL number
- Malaysia National Registration Department: identity number
- Saudi Central Bank: national ID number
- Ghana National Identification Authority: card number
- python-stdnum: pe.cui
- Nepal National ID FAQ
- Australian Taxation Office: TFN format
- National Immigration Agency: ID format comparison
- python-stdnum: cl.rut
- python-stdnum: ro.cnp
- python-stdnum: ec.ci
- python-stdnum: nl.bsn
Data snapshot: 2026-09-21