Name	Notation	Description	Types	Status
WMO block number	1		Concept	stable
WMO station number	2		Concept	stable
WMO Region number/geographical area	3		Concept	stable
WMO Region sub-area	4		Concept	stable
Buoy/platform identifier	5		Concept	stable
Aircraft flight number	6		Concept	stable
Satellite identifier	7		Concept	stable
Aircraft registration number or other identification	8		Concept	stable
Type of commercial aircraft	9		Concept	stable
Stationary buoy platform identifier; e.g. C-MAN buoys	10		Concept	stable
Ship or mobile land station identifier	11		Concept	stable
Direction of motion of moving observing platform	12		Concept	stable
Speed of motion of moving observing platform	13		Concept	stable
Platform drift speed (high precision)	14		Concept	stable
Station or site name	15		Concept	stable
Short station or site name	18		Concept	stable
Long station or site name	19		Concept	stable
WMO Region sub-area	20		Concept	stable
Synoptic feature identifier	21		Concept	stable
Name of feature	22		Concept	stable
Observation sequence number	23		Concept	stable
Wind speed source	24		Concept	stable
Storm identifier	25		Concept	stable
WMO storm name	26		Concept	stable
WMO long storm name	27		Concept	stable
Aerosol optical depth (AOD) source	28		Concept	stable
SSI source	29		Concept	stable
Numerical model identifier	30		Concept	stable
Identification of originating/generating centre	31		Concept	stable
Generating application	32		Concept	stable
Identification of originating/generating centre	33		Concept	stable
Identification of originating/generating sub-centre	34		Concept	stable
Originating centre	35		Concept	stable
Agency in charge of operating the observing platform	36		Concept	stable
SIGMET sequence identifier	37		Concept	stable
Source of sea ice fraction	38		Concept	stable
Graphical Area Forecast (GFA) sequence identifier	39		Concept	stable
Processing centre ID code	40		Concept	stable
Absolute platform velocity - first component	41		Concept	stable
Absolute platform velocity - second component	42		Concept	stable
Absolute platform velocity - third component	43		Concept	stable
Platform transmitter ID number	50		Concept	stable
Platform transmitter ID number	51		Concept	stable
Platform transmitter ID	52		Concept	stable
Tsunameter report sequence number triggered by a tsunami event	53		Concept	stable
Aircraft reporting point (Beacon identifier)	60		Concept	stable
Short ICAO location indicator	62		Concept	stable
ICAO location indicator	63		Concept	stable
Runway designator	64		Concept	stable
ICAO region identifier	65		Concept	stable
Tide station identification	75		Concept	stable
Unique identifier for the profile	79		Concept	stable
Ship line number according to SOOP	80		Concept	stable
Radiosonde serial number	81		Concept	stable
Radiosonde ascension number	82		Concept	stable
Radiosonde release number	83		Concept	stable
Observing platform manufacturer's model	85		Concept	stable
Observing platform manufacturer's serial number	86		Concept	stable
WMO marine observing platform extended identifier	87		Concept	stable
Technique for making up initial perturbations	90		Concept	stable
Ensemble member number	91		Concept	stable
Type of ensemble forecast	92		Concept	stable
Balloon lot number	93		Concept	stable
WBAN number	94		Concept	stable
Observer identification	95		Concept	stable
Station acquisition	96		Concept	stable
Unique product definition	99		Concept	stable
State identifier	101		Concept	stable
National station number	102		Concept	stable
IMO Number. Unique Lloyd's register	103		Concept	stable
Aircraft tail number	110		Concept	stable
Origination airport	111		Concept	stable
Destination airport	112		Concept	stable
Template version number defined by originating centre	113		Concept	stable
Identifier of the cruise or mission under which the data were collected	115		Concept	stable
Grid point identifier	124		Concept	stable
Snapshot identifier	144		Concept	stable