---
title: "Interpretation of numbers printed on the EMC-1 card - Roger"
description: "Roger - lider branży zabezpieczeń oferujący systemy kontroli dostępu, rejestracji czasu pracy, rejestracji pracy wartowników. Zapraszamy!"
url: "https://www.roger.pl/en/support/technical-support/faq-frequently-asked-questions/faq-access-control/transponders/interpretation-of-numbers-printed-on-teh-emc-1-card"
date: "2026-06-27T14:51:04+00:00"
language: "en-GB"
---

#  Interpretation of numbers printed on the EMC-1 card

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**Description:
On the EMC-1 cards there are serial numbers printed, for example: 0004329479323 014, 40091. What do they mean?**

**Solution:**

Thirteen digit card number, for example 0004329479323 , is a 40 bit unique card code in decimal format (13 decimal digits), which identifies user in RACS system. Following 24 bit block determines Facility Code and Card serial number.
014 - *Facility Code*
40091 - *Card serial number*

*Facility Codes* allow to define access on particular controllers, for example 10 thousand cards with number 014 will have access rights on a basis of that number.

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