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VENDOR IDS
BACnet provides facilities by which "private," i.e., non-standard, information may be transported. In order to arbitrate between non-standard messages of different manufacturers, BACnet defines a numerical "vendor identifier." Vendor IDs are available to any BACnet implementor without cost. For details on how to obtain a Vendor ID, please click here.

Vendor identifiers 555, 666, 777, 888, 911, and 999 are reserved for ASHRAE and will not be assigned to a vendor.

As of July 25, 2018, 1086 Vendor IDs have been issued and are distributed internationally as shown in the following list:
 
USA373
Germany120
Canada80
Japan64
China51
United Kingdom49
Australia39
Switzerland34
Poland25
Italy24
Korea23
France19
Austria18
Denmark14
Sweden14
Netherlands13
Czech Republic12
India11
Taiwan10
Belgium9
Finland9
Malaysia7
Brazil6
Hong Kong6
Spain6
Lithuania5
South Africa5
Israel4
New Zealand4
Singapore3
Turkey3
Croatia2
Hungary2
Ireland2
Luxembourg2
Serbia2
Slovakia2
Vietnam2
Argentina1
Chile1
Estonia1
Iceland1
Latvia1
Mexico1
Norway1
Romania1
Russia1
Saudi Arabia1
Slovenia1
Thailand1

The current list of Vendor IDs may be viewed by clicking here!