The SNCF (“Société National des Chemins de Fer”) is the French national train company, which uses its own standard for domestic tickets.

SNCF Barcode Specification

This barcode does not have a public specification file available, and was reverse engineered.

Notable Characteristics

Leading Bytes	i0CV
Length	131 bytes (constant)
Encoding	ISO/IEC 8859-1
Signature	N/A

Ticket Structure

Offsets are number of bytes

Field	Offset Start	Offset End	Length (bytes)	Format
Magic Bytes	0	3	4	69 30 43 56 -> i0CV (fixed)
Passenger Name Record	4	9	6
Ticket Number	10	18	9
Unknown	19	22	4	31 32 31 31 -> 1211 (fixed)
Traveller Date of Birth	23	32	10	%d/%m/%Y
Departure Station	33	37	5
Arrival Station	38	42	5
Train Number	43	47	5
Travel Date	48	52	5	%d/%m
Traveller SNCF ID	53	71	19	0-string if missing
Traveller Surname	72	90	19	Left-space padded string
Traveller Forename	91	109	19	Left-space padded string
Travel Class	110	110	1
Tariff Code	111	114	4
Return Travel Class	115	115	1	0-string if missing
Return Departure Station	116	120	5	Empty string if missing
Return Arrival Station	121	125	5	Empty string if missing
Return Train Number	126	130	5	0-string if missing

Kaitai Spec

The Kaitai Spec for this is also located on GitHub.

Yaml

meta:
id: barcode_sncf
file-extension: bin
encoding: "iso-8859-1"
endian: le
seq:
- id: magic
    contents: [0x69, 0x30, 0x43, 0x56]
    doc: "`i0CV` are the four magic bytes identifying tickets issued by SNCF."
- id: passenger_name_record
    type: str
    size: 6
    doc: "Passenger Name Record (assumedly)"
- id: ticket_number
    type: str
    size: 9
    doc: "Ticker number"
- id: unknown_data
    contents: [0x31, 0x32, 0x31, 0x31]
    doc: "Unknown Data"
- id: traveller_dob
    type: str
    size: 10
    doc: "Traveller Date of Birth (format: `%d/%m/%Y`)"
- id: departure_station
    type: str
    size: 5
    doc: "5-character departure Benerail station ID"
- id: arrival_station
    type: str
    size: 5
    doc: "5-character arrival Benerail station ID"
- id: train_number
    type: str
    size: 5
    doc: "5-digit train number (left-zero-padded)"
- id: travel_date
    type: str
    size: 5
    doc: "Date of the travel (format: `%d/%m`)"
- id: traveller_sncf_id
    type: str
    size: 19
    doc: "SNCF Traveller ID (Internal)"
- id: traveller_surname
    type: str
    size: 19
    doc: "Surname of the traveller (left-space-padded)"
- id: traveller_forename
    type: str
    size: 19
    doc: "Forename of the traveller (left-space-padded)"
- id: travel_class
    type: str
    size: 1
    doc: "1-digit travel class (1, 2)"
- id: tariff_code
    type: str
    size: 4
    doc: "Tariff Code"
- id: travel_class_return
    type: str
    size: 1
    doc: "1-digit travel class (0, 1, 2)"
- id: departure_station_return
    type: str
    size: 5
    doc: "5-character departure Benerail station ID"
- id: arrival_station_return
    type: str
    size: 5
    doc: "5-character arrival Benerail station ID"
- id: train_number_return
    type: str
    size: 5
    doc: "5-digit train number (left-zero-padded)"