LEI Checker & ISO-97 Checksum Validator
The Legal Entity Identifier (LEI) is a 20-character identifier standardized under ISO 17442, used to uniquely identify distinct legal entities in global financial transactions.
Validate entity-identifier format, structure, and check digits offline. For LEI codes, also query live status in the official GLEIF registry.
Legal Entity Identifier (LEI) Validator
A 20-character identifier standardized under ISO 17442. This validator runs the official ISO 7064 mod-97-10 check digit algorithm and queries live registration status in the official GLEIF registry.
Frequently Asked Questions
What is a valid Legal Entity Identifier (LEI)?
A Legal Entity Identifier (LEI) is a 20-character alphanumeric code based on the ISO 17442 standard. It contains a 4-character prefix for the Local Operating Unit, 2 reserved characters, 12 characters for the entity identifier, and 2 check digits (computed using the ISO 7064 Mod 97-10 algorithm).
How is the LEI check digit algorithm verified?
The LEI validation uses the Mod 97-10 checksum algorithm (ISO 7064). The character sequence is converted to integers (where A=10, B=11, ...), and the modulo 97 operation must yield a remainder of exactly 1 for a valid LEI.