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SIM Card question re: MSISDN

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(@topsirloin)
Posts: 45
Eminent Member
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From my own experience, the MSISDN field will contain the active phone number most of the time. I understand this number can be modified, but is usually the place I look to first to find a phone number a device is assigned.

Here in Canada, for the provider WIND mobile, it appears that this field is rarely populated with any data. So I'm left to confirm within the device. Sometime's I have difficulties with this.

I'm looking at a Blackberry Z10. I'm trying to manually find the phone number on the device. The device was placed into Airplane Mode immediately so I'm not sure if this is affecting my search. The places I check for this number show nothing (SIM Card details within Settings -> About, SIM Card within Security & Privacy settings, and also within the Phone App at the top of the contact list.) I'm assuming these settings all refer to the MSISDN entry on the SIM Card, which is blank.

I don't have an active WIND phone to test this with, so I'm not sure if the phone isn't showing a phone number since it's not on the network, or if this is normal practice for this.

Has anyone come across a similar situation like this? Any other way to confirm a phone number on a BB10 device?

And also, does anyone have a technical explanation on why WIND Mobile SIMs aren't populated with any MSISDN entries? Are there other carriers that follow this practice?

 
Posted : 08/04/2014 9:31 pm
(@dcs1094)
Posts: 146
Estimable Member
 

Has anyone come across a similar situation like this? Any other way to confirm a phone number on a BB10 device?

This might help

http//supportforums.blackberry.com/t5/BlackBerry-Z10/How-to-edit-MY-NUMBER/td-p/2224467

I have examined a handful of BB 10 devices recently & with only Cellebrite supporting minimal data from the handset in a recent release, unless you can manually find the option, a logical data extraction via a client does not provide much general handset information from BB 10 devices.

And also, does anyone have a technical explanation on why WIND Mobile SIMs aren't populated with any MSISDN entries? Are there other carriers that follow this practice?

I am not that familiar with WIND mobile, however some Network Providers simply do not store the telephone number in EF_MSISDN location within the SIM Card's file system. This is quite common with Vodafone believe it or not. I also see a lot of Lebara Mobile SIM Card's, which also do not always store a valid MSISDN (because they also use Vodafone's network). Whenever I have a SIM Card which is not storing the phone number, I just advise the OIC to speak to their relevant Telecommunications Intel Unit that can obtain billing data or/and the phone number attributed to the SIM Card, by using the ICCID & IMSI numbers (on items where the phone number cannot be obtained via other methods).

 
Posted : 08/04/2014 10:56 pm
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