is there a wat to know my number?

IoT Modules Development tools
1

Hello ,
I want to know - when I put the SIM card in the “DEV Bord” , and using the Discovery Tool
is there a way to know what my phone number that I get from the ISP?
I can see the sim number,network,modem number - but not the number I get from my provider.

Thank you

2

Some networks have a USSD that can give you your MSISDN. For example, MTN in South Africa has one that can be accessed by sending

AT+CUSD=1,"*123*888#"

However, not all networks have this facility or if they do, they may not make it public. Easiest way is to send an SMS to a phone, and check the MSISDN.

3

this is the problem I can’t do it.
My SIM are lock , can’t send a SMS or make a voice call.
I can only use it for data.
no other way?

4

data as in data-call or as in gprs?

5

I think data-call ,

6

then you could open an connection to another device, which just sends the number back to the original client and closes the connection aftwards :laughing:
(implying, that you have a second device)

7

ISP = Internet Service Provider - they do not give you a phone number :exclamation:

8

You really need to confirm that with your service provider :exclamation:

9

sorry , let my explain.
What I meant is - I get from me cellular provider 100 sims with static ip
I want to know what number did they get also, for my records.
because when the send my a bill its with phone number and not the ip( or sim).

Thank you ,

10

hmm, since i can´t see an at-command to get the phone number, you could put your sim cards into a handy and use that to let it show you the number (at least my current handy has a menu for showing the own number^^)
but first i would send an email to the provider and ask for the number <-> ip table

11

hmmmmmm.
I thought there is an AT command for this , this way I can be sure.
wall - Thank you !

12

If you’re buying in that quantity, you really should be asking your cellular provider :exclamation:

They should be able to provide this with the SIMs!

Have you tried AT+CNUM :question:

13

I think some networks provide SIMS without the CNUM fields filled in. When I query my SIM, it just gives

10:45:16:373 - AT+CNUM

10:45:16:392 - +CNUM: "","",0
10:45:16:397 - +CNUM: "","",0

10:45:16:401 - OK
14

Yes, they do.

Some networks don’t assign the number to the SIM until it is first used.

And, of course, if the SIM has no number - then that’s the end of the story!

15

https://forum.sierrawireless.com/t/how-can-i-access-sim-number-from-tcp-server-side/3809/4

https://forum.sierrawireless.com/t/how-i-can-get-a-phone-number-from-simcard-using-at-command/1058/4

Note that this is fundamental to the way GSM works - it has nothing specifically to do with SiWi…

16

I have try this command
at+cnum
and all I get is

at+cnum
OK
at+cnum?
ERROR
at+cnum=?
OK

the sim is working , and I get IP address .

how else can I find the phone-number ?

thanks,

17

Have you paid attention to the replies and links previously provided?

Have you actually discussed with your SIM provider yet :question: