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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 January 25, 2017, 961 Vendor IDs have been issued and are distributed internationally as shown in the following list:
 
USA341
Germany113
Canada72
Japan61
United Kingdom39
China35
Switzerland32
Australia29
Korea23
Poland22
Italy22
Taiwan17
France17
Denmark14
Sweden13
Austria13
Netherlands11
India11
Hong Kong10
Czech Republic9
Belgium8
Finland7
Malaysia6
Brazil5
South Africa5
Israel4
Spain4
Singapore3
Turkey3
New Zealand3
Croatia2
Ireland2
Luxembourg2
Slovakia2
Serbia2
Vietnam2
Hungary2
Lithuania2
Argentina1
Estonia1
Iceland1
Latvia1
Mexico1
Norway1
Romania1
Russia1
Saudi Arabia1
Thailand1

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