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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 October 18, 2017, 1017 Vendor IDs have been issued and are distributed internationally as shown in the following list:
 
USA356
Germany115
Canada75
Japan61
China50
United Kingdom38
Switzerland32
Australia31
Italy23
Korea23
Poland23
France17
Austria15
Denmark14
Sweden13
India11
Netherlands11
Belgium9
Czech Republic9
Taiwan9
Finland8
Malaysia7
Hong Kong6
Brazil5
England5
South Africa5
Spain5
Israel4
Lithuania4
New Zealand3
Singapore3
Turkey3
Croatia2
Hungary2
Ireland2
Luxembourg2
Serbia2
Slovakia2
Vietnam2
Argentina1
Estonia1
Iceland1
Latvia1
Mexico1
Norway1
Romania1
Russia1
Saudi Arabia1
Thailand1

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