https://devzone.nordicsemi.com/f/nordic-q-a/46288/nrf9160-verizon-simHey, So I&#39;ve been using the Verizon SIM card supplied by nordic with our nRF9160 dev kit. I never really new how the APN was getting configured because it just happened. For example, for AT&amp;T, I have to configure the APN manually, but the SIM includeden-USTelligent Community 13Mon, 06 May 2019 12:27:34 GMThttps://devzone.nordicsemi.com/thread/185491?ContentTypeID=1Mon, 06 May 2019 12:27:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6abe5ff4-603d-44c6-bbc2-787561a5e348Martin Lesund<p>Hi Jack,</p> <p>Some vendors have a lot of requirements related to handling of APN and other PDN connection parameters than others. (<span><em>In case of Verizon, the operator requires automatic handling of APNs in order to get the Verizon certification.</em>)</span></p> <p>These are indeed implemented and handled in the <strong>modem firmware.</strong></p> <p>So the modem firmware detects the specific vendors SIM and take action accordingly in the modem firmware to meet the requirements for that SIM card.</p> <p></p> <p>Best regards,</p> <p>Martin L.</p><div style="clear:both;"></div>