Structural Architecture of the Egyptian 14-Digit National ID
Established under Civil Status Law No. 143 of 1994, the Egyptian National ID system provides every citizen with a unique 14-digit numeric identifier containing encoded civil demographic records structured systematically from left to right:
| Digit Position | Demographic Designation | Valid Value Range | Practical Illustration |
|---|---|---|---|
| Position 1 | Century Indicator | 2 (1900–1999) | 3 (2000–2099) | 2 = Born 19xx |
| Positions 2 & 3 | Birth Year (Last two digits) | 00 through 99 | 95 = 1995 |
| Positions 4 & 5 | Birth Month | 01 through 12 | 08 = August |
| Positions 6 & 7 | Birth Day | 01 through 31 (month-validated) | 14 = 14th day |
| Positions 8 & 9 | Civil Registry Governorate | Official administrative codes (01–35, 88) | 01 = Cairo |
| Positions 10 to 13 | Daily Sequence & Gender | Position 13: Odd = Male | Even = Female | Digit 13 is odd = Male |
| Position 14 | Algorithmic Check Digit | 1 through 9 | Verification checksum |
Official Administrative Governorate Code Directory
The Egyptian Ministry of Interior's Civil Status Organization designates specific two-digit codes corresponding to the administrative civil health registry where births are documented:
Verified Mathematical Worked Examples
Example 1: 29501010101234
- • Leading digit 2: 20th century (1900–1999).
- • Digits 95-01-01: Birth date is January 1, 1995.
- • Digits 01: Cairo governorate code.
- • Position 13 (Digit 3): Odd integer, identifying the record as Male.
Example 2: 30205151201468
- • Leading digit 3: 21st century (2000–2099).
- • Digits 02-05-15: Birth date is May 15, 2002.
- • Digits 12: Dakahlia governorate code.
- • Position 13 (Digit 6): Even integer, identifying the record as Female.
Validation Checks and Logical Boundaries
The decoding engine enforces strict date sanity verification: leap years are calculated to verify February 29th legitimacy, months are capped between 01 and 12, days are bounded by the calendar month's length, future birth dates are flagged as errors, and governorate codes are cross-referenced against the official Civil Status database.
Frequently Asked Questions
Why does the decoded governorate sometimes differ from my current residential address?
Digits 8 and 9 record the administrative civil registry code where your birth was originally registered and documented on your automated birth certificate. If an individual moves to a different governorate and updates their residential address on subsequent ID cards, the printed address on the back updates, but the birth location code in the National ID number remains immutable for life.
What does governorate code 88 represent in the database?
The Civil Status Organization assigns code 88 to all Egyptian citizens born outside the territory of Egypt whose births were registered through Egyptian consular missions abroad.
What is the structural meaning of the very first digit (Position 1 from the left)?
The leading digit designates the birth century. A leading 2 indicates individuals born in the 20th century (January 1, 1900 through December 31, 1999). A leading 3 denotes births in the 21st century (January 1, 2000 through December 31, 2099). When the year 2100 arrives, newborns will begin with digit 4.
How does the sequence segment determine biological gender?
Digit 13 (the penultimate digit from the right) serves as the biological gender indicator. An odd integer (1, 3, 5, 7, 9) designates male records, whereas an even integer (0, 2, 4, 6, 8) indicates female records.
What is the purpose of the 14th terminal digit?
The fourteenth digit is a cryptographic or mathematical checksum (Check Digit) generated by the central databases of the Ministry of Interior to catch optical character recognition (OCR) scanning errors and transcription mistakes.
Are there any privacy risks or database retention when decoding my ID on this page?
None whatsoever. This decoder executes strictly client-side within your local browser JavaScript engine without making network calls or retaining records, ensuring total personal privacy and confidentiality.
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