How CURP codes are built Unique Population Registry Code

1 how curp codes built

1.1 exceptions

1.1.1 Ñ
1.1.2 common given names
1.1.3 catalog of inappropriate words

how curp codes built

to understand how curp codes built, 1 must first understand hispano american naming conventions. full names in spanish-speaking countries (including mexican full names) consist of 3 elements:

the curp code composed of 18 characters assigned follows:

the first surname s initial , first inside vowel;
the second surname s initial (or letter x if, foreign nationals, person has no second surname);
the first given name s initial;
date of birth (2 digits year, 2 digits month, , 2 digits day);
a one-letter gender indicator (h male (hombre in spanish) or m female (mujer in spanish));
a two-letter code state person born; persons born abroad, code ne (nacido en el extranjero) used;
the first surname s second inside consonant;
the second surname s second inside consonant;
the first given name s second inside consonant; and
two characters ranging 0-9 people born before 2000 or a-z people born since 2000; these characters generated national population registry prevent identical entries.

for married women, maiden names used.

for example, curp code hypothetical person named gloria hernández garcía, female, born on 27 april 1956 in state of veracruz, hegg560427mvzrrl04.

exceptions

several exceptions above rules exist, including:

Ñ

if step in above procedure leads letter Ñ appearing anywhere in curp, Ñ replaced x .

very common given names

when person has 2 given names , first given name maría, case women in mexico, or josé, in case of men, first name overlooked , fourth character taken second given name s initial. because names maría , josé common , generate many duplicates if used generate code.

for example, if person named maría fernanda escamilla arroyo, curp s first 4 characters eaaf because maría not count curp s fourth character when second given name present.

catalog of inappropriate words

to prevent words forming deemed palabras altisonantes (foul-sounding words, such profanity or pejoratives) in first 4 characters of string, catalog of inappropriate words (catálogo de palabras inconvenientes) lists many such possible combinations , provides replacements entail changing second letter, vowel, x .