Inner Range SIFER 56bit - (I941747A)

Everything you need to understand Inner Range SIFER 56bit - (I941747A)

Card format Overview

A proprietary 56-bit card format used in access control systems, featuring a unique structure composed of 24-bit site code and 32-bit card number, allowing for easy management and avoiding card number duplication for secure, contactless access.

Inner Range SIFER 56bit - (I941747A) format properties

Site Code

24 bits. The facility code range is 0 to 16,777,215.

Card Number

32 bits. A unique serial number (0-4,294,967,295) for each card within that facility code.

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Format Value
Hex
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Decimal
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Binary
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