SIM card and Phone usage

[Phrequency]

I'm too lazy to read the other posts, but if you clone some one elses SIM card (plan not pre-paid and COMP128 v1) and put it in you phone will the phone company bar the usage of the card and trace you or not.

Also if i have the cracked Ki and a radio scanner can i Eavesdrop and decrypt the radio siginal.

Please enlighten me

[SirGraham]

Hi Phrequency,

The company can trace any phone... with the IMSI and IMEI.

Other question is:
Does the companys trace the phones? No.
This is lot of info and work for they
With the clone.. you uses more the phone... and pay for this use... It isn´t a problem for the operators.

If you have the KI you need also the Rand number (to execute a A3/A8 funtion solve the Kc use this Kc in A5 funtion).
Also You need good scanner (200Khz of wideband) in 800-960 Mhz with ouput of digital data...

Have you this kind of scanner?

Best Regards,
Sir Graham.

[Phrequency]

I suspose the next question i have is, is it possible to get the rand number and how.

Phrequency

[SirGraham]

Hi Phrequency,

With the Scanner. The Rand number is send by BTS in the authenticate. If you catch this number and knows the Ki only need applicate this to A3A8....

If you have a apropiate Scanner. It´s not easy...

Best Regards,
Sir Graham.