F-35 Track 2 Data
Description
This field should contain the information encoded on Track II of the magnetic stripe on the card or the bar code information for gift cards, excluding start and end sentinel and longitudinal redundancy check (LRC) characters.
Note that this field should not be used when CHD is encrypted using DUKPT or other encryption schemes. See F-61 Encrypted Cardholder Data (subfield Encrypted Track 2 Data).
This field attribute is defined as “Pz ..37”, (Packed Unsigned BCD, containing hexadecimal digits). Each hex digit is represented by a 4-bit nibble (two digits encoded in a single byte). Digits 0-9 represent decimal values 0-9; A-F represents special characters/sentinels. The field can contain a maximum of 37 hexadecimal digits; odd-length fields must contain a leading nibble containing 0 (making for a maximum of 38 nibbles across 19 bytes).
Attributes
Pz ..37
Format
Element | Format | Notes |
PAN (Primary Account Number) | Up to 19 digits | Up to 19 digits. |
Field Separator | = | To be encoded using the relevant Hexadecimal value. See ‘Sentinels’ below for encoding. |
Expiry Date | YYMM | Replace with a Field Separator if not present. |
Service Code | 3 digits | Replace with a Field Separator if not present. |
Discretionary Data | Balance of available space | May include the PIN offset, PIN Verification Number (PVN), or the PIN Verification Key Indicator (PVKI) and PIN Verification Value (PVV), and card verification value). |
Sentinels
Sentinel Usage | ASCII Value | Hexadecimal Value |
Start Sentinel | ; | xB |
Field Separator | = | xD |
End Sentinel | ? | x |
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- F-35 Track 2 Data