How is an Ecuadorian cédula validated?

The first two digits must be a valid province (01–24, or 30 for citizens abroad), the third digit must be below 6 for a natural person, and a modulo-10 (Luhn-style) algorithm over the first nine digits must produce the tenth verifier digit using coefficients 2,1,2,1,2,1,2,1,2.

How accurate is this validator?

The modulo-10 algorithm and province rules are exact, so a malformed cédula is caught reliably. A valid result confirms the number is well-formed, not that it is registered with the Registro Civil, which this tool never contacts.

Is my cédula sent anywhere?

No. The validator is privacy-first — all processing happens locally in your browser and the cédula never leaves your device.

What does the third digit of the cédula mean?

The third digit identifies the holder type. For a natural-person cédula it must be 0–5. Codes 6 (public entities) and 9 (private companies) belong to a different RUC-style scheme and are not validated as natural-person cédulas here.

Which province codes are valid?

Codes 01 to 24 correspond to Ecuador's 24 provinces (01 Azuay through 24 Santa Elena), and 30 is reserved for Ecuadorians registered abroad. Any other leading pair fails the province check.

How does the modulo-10 check digit work?

Each of the first nine digits is multiplied by the coefficient at its position — 2,1,2,1,2,1,2,1,2. If a product exceeds 9, subtract 9. Sum all nine results; the check digit is (10 − (sum mod 10)) mod 10 and must equal the tenth digit.

Does a valid cédula mean the person exists?

No. A valid result only means the number is mathematically well-formed and uses a real province and type code. Confirming a real, registered identity requires the Registro Civil, which this tool never contacts.

Ecuador Cédula Validator

Ecuador cédula validator

Every Ecuadorian citizen is assigned a 10-digit cédula de identidad by the Registro Civil. The number is not random: it encodes a province code, a holder-type digit, a birth-order serial, and a final modulo-10 verifier that detects typos. This tool checks all three structural rules and reports instantly whether a cédula is well-formed.

How it works

The validator applies the official Módulo-10 (Luhn-style) algorithm. First it reads the first two digits as a province code and requires them to be 01–24 or 30. The third digit must be below 6 to mark a natural person. Then it runs the check digit: each of the first nine digits is multiplied by the coefficients 2,1,2,1,2,1,2,1,2; any product over 9 has 9 subtracted; the products are summed; and the expected verifier is (10 − (sum mod 10)) mod 10, which must equal the tenth digit. A cédula is valid only when the province, type and check digit all pass.

Example

Take 1710034065. The province is 17 (Pichincha) — valid. The third digit is 1 (< 6) — a natural person. Running the coefficients over 171003406 and reducing gives a sum whose check digit is 5, matching the final digit. The number is reported valid.

Position	Digits	Meaning
1–2	17	Province (Pichincha)
3	1	Holder type (natural person)
4–9	003406	Birth-order serial
10	5	Modulo-10 check digit

It is privacy-first: nothing leaves your browser. The validator checks the algorithm and structure only — it never confirms the number against the Registro Civil.