SerivceList.txt

Apple Characteristic	|ID
————————————————————————+——
adminOnlyAccess		|1
audioChannels		|2
audioCodexName		|3
audioCodexParameter	|4
audioFeedback		|5
audioPropAttr		|6
audioValAttr		|7
brightness		|8
cameraNightVision	|9
cameraPan		|A
cameraTilt		|B
cameraZoom		|C
coolingThreshold	|D
currentDoorState	|E
currentHeatCoolMode	|F
currentHumidity		|10
currentTemperature	|11
heatingThreshold	|12
hue			|13
identify		|14
inputVolume		|15
ipCameraStart		|16
ipCameraStop		|17
lockControlPoint	|19
lockAutoTimeout		|1A
lockLastAction		|1C
lockCurrentState	|1D
lockTargetState		|1E
logs			|1F
manufactuer		|20
modelName		|21
motionDetect		|22
serviceName		|23
obstruction		|24
on			|25
outletInUse		|26
outputVolume		|27
rotationDirection	|28
rotationSpeed		|29
rtcpExtProp		|2A
rtcpVideoPayload	|2B
rtcpAudioPayload	|2C
rtcpAudioClock		|2D
rtcpProtocol		|2E
saturation		|2F
serialNumber		|30
srtpCyptoSuite		|31
targetDoorState		|32
targetHeatCoolMode	|33
targetHumidity		|34
targetTemperature	|35
temperatureUnit		|36
version			|37
videoCodexName		|38
videoCodexPara		|39
videoMirror		|3A
videoPropAttr		|3B
videoRotation		|3C
videoValAttr		|3D

Apple Accessory Service	|ID
————————————————————————+——
accessoryInfo		|3E
camera			|3F
fan			|40
garageDoorOpener	|41
lightBulb		|43
lockManagement		|44
lockMechanism		|45
microphone		|46
outlet			|47
speaker			|48
switch			|49
thermostat		|4A

For private sector, I recommend changing the first digit as 1 for characteristic, and 2 for service (there are 8 digit for id)
In case there is conflict with future Apple defined characteristic.

Private Sector Defined Characteristic	|ID
————————————————————————————————————————+————————

Private Sector Defined Service		|ID
————————————————————————————————————————+————————
freezer					|20000001