https://devzone.nordicsemi.com/f/nordic-q-a/20250/advertising-and-assigned-numbersHello, We need to add custom data to advertise packet. As I understand we can use Manufacturer Specific Data. But to do this we need to get our Manufacturer ID from Bluetooth SIG. Bluetooth SIG provide a list of Assigned Numbers: www.bluetoothen-USTelligent Community 13Thu, 09 Mar 2017 08:36:13 GMThttps://devzone.nordicsemi.com/thread/78889?ContentTypeID=1Thu, 09 Mar 2017 08:36:13 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f8990761-ec74-4eb6-afe1-8f127d5ddf61Artem Zemlyanukhin<p>Thank you a lot Jan!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/78888?ContentTypeID=1Tue, 07 Mar 2017 13:25:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ffca378d-806b-40b6-ae45-5fb657fa87b0endnode<p>Hello Artem,</p> <p>BT SIG assigns <a href="https://www.bluetooth.com/specifications/assigned-numbers/company-identifiers">Manufacturer Specific 16-bit IDs</a> which are used inside Manufacturer Specific AD element (TAG = 0xFF). If you cannot get one (e.g. because you don&#39;t want to pay membership fees) you might use value 0xFFFF for testing (see suggestion inside the list). If you really want to ship product without being BT SIG member then I&#39;m afraid you either:</p> <ul> <li>need to find some agreement with any existing member to use his ID</li> <li>or don&#39;t use Manufacturer Specific data at all</li> <li>or break BT SIG GAP compliance and allocate some AD tag as you suggested. But again this is not allowed if you want to be completely in-line with GAP (which is kind of mandatory for GATT/ATT as well...)</li> </ul> <p>Cheers Jan</p><div style="clear:both;"></div>