https://devzone.nordicsemi.com/f/nordic-q-a/77783/nrf-connect-mobile-app-server-advertising-addressHello, How to find NRF connect mobile app server&#39;s address in the app to be used for connecting to peer devices ? Is there any way that the device address does not change randomly or can be seen after configuring as GATT server? Thanks.en-USTelligent Community 13Fri, 23 Jul 2021 12:17:06 GMThttps://devzone.nordicsemi.com/thread/321562?ContentTypeID=1Fri, 23 Jul 2021 12:17:06 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f5280069-12b4-4a33-a609-fdd09cfa5c49Amanda Hsieh<p><span>Hi,&nbsp;</span></p> <p><span>I don&#39;t think you can modify the address type of the phones which are&nbsp;</span><span>resolvable addresses.&nbsp;</span><span>Those are generated from an identity resolving key (IRK) and a random number, and they can be changed often (even during the lifetime of a connection) to avoid the device being identified and tracked by an unknown scanning device. Only devices that possess the IRK distributed by the device using a private resolvable address can actually resolve that address, allowing them to identify the device.</span></p> <p><span>I would suggest you take a look&nbsp;<a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.0.2/ble_sdk_app_hrs.html">Heart Rate Application</a>&nbsp;how to handle it by the <a title="Peer Manager" href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.0.2/lib_peer_manager.html?cp=8_1_3_2_7">Peer Manager</a>/id_manager.&nbsp;</span></p> <p><span>-Amanda H.</span></p><div style="clear:both;"></div>