# Retrieve SIM number

**URL:** <https://forum.sierrawireless.com/t/retrieve-sim-number/4641>\
**Category:** Open AT\
**Created:** [September 2, 2010, 8:51am UTC](https://forum.sierrawireless.com/t/retrieve-sim-number/4641 "2010-09-02T08:51:01Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![phrozzy](https://avatars.discourse-cdn.com/v4/letter/p/2bfe46/32.png) [@phrozzy](https://forum.sierrawireless.com/u/phrozzy)\
**Post date:** [September 2, 2010, 8:51am UTC](https://forum.sierrawireless.com/t/retrieve-sim-number/4641/1 "2010-09-02T08:51:01Z")

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Does exist a way to retrieve SIM telephone number (API or AT cmds) ?

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**Author:** ![awneil](https://avatars.discourse-cdn.com/v4/letter/a/49beb7/32.png) [@awneil](https://forum.sierrawireless.com/u/awneil)\
**Post date:** [September 3, 2010, 6:15am UTC](https://forum.sierrawireless.com/t/retrieve-sim-number/4641/2 "2010-09-03T06:15:51Z")

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No, there isn’t: because the phone number (MSISDN) is held in the Network - not on the SIM.

See: [en.wikipedia.org/wiki/MSISDN](http://en.wikipedia.org/wiki/MSISDN)

Some networks provide a facility to retrieve the phone number; eg, on Vodafone-UK, you dial \*#100#

However, many SIMs come preconfigured so that AT+CNUM will give the number.

AT+CNUM just uses the entries in the “ON” phonebook - so you can set it up yourself…

See: [https://forum.sierrawireless.com/t/msisdn/1231/2](https://forum.sierrawireless.com/t/msisdn/1231/2)