Mexico CLABE

Detects Mexican CLABE (Clave Bancaria Estandarizada) numbers used for SPEI interbank transfers. CLABE is an 18-digit standardized bank account number including bank code, branch, account and check digit.

Type

regex

Engine

boost_regex

Confidence

medium

Confidence justification

Medium confidence: eighteen-digit runs occur in other systems; CLABE/SPEI/cuenta keywords are required for production use.

Jurisdictions

mx

Regulations

LFPDPPP (Mexico), Fintech Law (Mexico)

Frameworks

ISO 27001, ISO 27701

Data categories

financial, pii

Scope

narrow

Risk rating

8

Platform compatibility

Purview: Compatible, GCP DLP: Compatible, Macie: Compatible, Zscaler: Compatible, Palo Alto: Compatible, Netskope: Compatible

Pattern

\b\d{18}\b

Corroborative evidence keywords

CLABE, SPEI, clave bancaria, cuenta CLABE, bank account, account number, savings, bank account number, savings account, [object Object], [object Object], [object Object], banking, [object Object], checking, chequing, financial institution, Kiwibank, routing, Westpac (+21 more)

Proximity: 300 characters

Should match

• 002010077777777771 — Illustrative 18-digit CLABE
• 012180001234567897 — Alternate illustrative CLABE
• 137010000100000018 — Third illustrative CLABE

Should not match

• 00201007777777777 — Only 17 digits
• 0020100777777777712 — 19 digits
• 00201007777777777A — Contains a letter

Known false positives

• Other 18-digit identifiers (parcel IDs, long order numbers). Mitigation: Require CLABE/SPEI/clave bancaria keywords within proximity.

References

• Banxico SPEI overview

Collections

• Coverage Phase 1 Priority Identifiers