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<?xml-stylesheet type="text/xsl" href="https://devzone.nordicsemi.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Are the First vs last bytes of DEVICEID register same uniform distribution</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/128403/are-the-first-vs-last-bytes-of-deviceid-register-same-uniform-distribution</link><description>in Memfault I see the device ID number for each device such as 41EF6BB8FB6C9AF9. Is the distribution for the first 3 bytes the same as the distribution for the last 3 bytes? or is it like a MAC address where the last 3 bytes are the device ID and the</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Wed, 10 Jun 2026 13:00:15 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/128403/are-the-first-vs-last-bytes-of-deviceid-register-same-uniform-distribution" /><item><title>RE: Are the First vs last bytes of DEVICEID register same uniform distribution</title><link>https://devzone.nordicsemi.com/thread/567713?ContentTypeID=1</link><pubDate>Wed, 10 Jun 2026 13:00:15 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:c1bd25c0-b5a6-4cc3-8b18-f776e91deb13</guid><dc:creator>Samruddhi Jadhav</dc:creator><description>&lt;p&gt;Hello Andrew,&lt;/p&gt;
&lt;p&gt;I have discussed this with the Memfault team and they have mentioned that the device ID which you have given seems to be&amp;nbsp;a fully randomly generated identifier. Also, the first three bytes are not a company/OUI identifier&amp;nbsp;and the bytes are uniformly distributed random values (produced in the chip production).&amp;nbsp; Note that this still has to be confirmed so if there are any changes in this information, I will let you know.&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Best Regards,&lt;/p&gt;
&lt;p&gt;Samruddhi&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>