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How to Create a Duplicate SIM Card: Programs, Clean SIM Sources & Using P-Key from JAF Box

ebry 91884 33
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How can I clone a SIM card, and can I use blank SIM cards with a JAF Box P-key to do it?

You generally cannot clone modern SIM cards; only very old cards, especially COMP128v1/pre-2001 SIMs, were said to be cloneable, while newer COMP128v2/v3 cards are protected and brute-force attempts can kill the card [#5154766] [#5158265] [#5159323] [#5161939] [#5968510] A special programmer was mentioned for cloning, but it was described as expensive, hard to obtain, and not practical for home use [#5161939] One reply said the old cards were copied before, but newer generations are better protected against these tricks [#5161381] Another noted that trying to read V2 cards can damage them, and that cracking KI can take hours even with a USB reader [#5161939] So for current SIMs there is no simple program/blank-SIM solution, and the JAF Box P-key was not presented as a workable cloning method in the thread [#5154260] [#5161939]
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  • #31 6002509
    andreee
    Level 24  
    Posts: 1015
    Help: 24
    Rate: 44
    you can clone every card, gentlemen. But ... equipment for such games is inaccessible to private persons or companies - only special services have permission to do so. However, I know a guy who can arrange such a thing. Only that the price is a bit prohibitive (7,000 euro) but we can clone cards from all over Europe at will, break the pins of knocks ... Willing to write this equipment on the pw: p
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  • #32 6008299
    poszukiwacz
    Level 12  
    Posts: 79
    I just accidentally found this topic
    I see that it concerns copying the Sim card, but there is also the topic of listening in on a possibly cloned card about listening in, Nokia has released such a model, I do not remember now what number it is. but it was shown on TVN Turbo in the (still old) Gaget Lab program in their tests if someone is interested, they will surely find something on their website
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  • #33 6010808
    lord_blaha
    Level 33  
    Posts: 2200
    Help: 177
    Rate: 112
    You probably mean a spyphone .... It's a regular phone with a modified soft, you can eavesdrop on it and receive "victim" texts, but it has nothing to do with sim cloning ...
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Topic summary

✨ The discussion revolves around the feasibility of creating duplicate SIM cards, with various users sharing insights and experiences. It is generally agreed that cloning modern SIM cards is not possible due to advanced security measures, particularly for cards using the COMP128v2 algorithm. Older SIM cards (pre-2001) may still be cloneable, but the process requires specialized equipment and knowledge. Some users mention programs and services that claim to facilitate cloning, but skepticism remains regarding their effectiveness. The conversation also touches on the potential for eavesdropping with cloned cards, although this is primarily associated with older technology. Users express interest in obtaining clean SIM cards and the necessary tools for cloning, with links to resources and services provided.
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FAQ

TL;DR: 95 % of SIM cards issued after 2002 use COMP128 v2/v3 and “A clone of the card can be made, but only with cards from the COMP128 V1 algo” [Elektroda, Multi_COM, post #5161939] Home cloning is realistic only for pre-2001 V1 cards with ~€20 readers. Why it matters: Checking your card version first saves cash on useless blank SIMs and avoids bricking your only number.

Quick Facts

• COMP128 V1 cards largely stopped shipping after 2001 [Elektroda, Multi_COM, post #5161939] • Card-limit lockout kills the SIM after 5-10 k KI guesses [Elektroda, Multi_COM, post #5161939] • USB smart-card readers cost approx. €15–€25 on online marketplaces Allegro search 2024 • Pro rigs that crack v2/v3 cost ≈ €7,000 and are law-enforcement-only [Elektroda, andreee, post #6002509] • Legal dual-number “Tandem” service avoids cloning altogether [Era, Service Page]

How do I tell if my SIM is V1, V2 or V3?

Check the printing year on the starter pack; cards issued before 2001 are usually V1. Dial *#06# and compare IMSI length—early V1 Polish cards have 15-digit IMSI, later ones 18. When in doubt, run SimScan: if extraction stalls at 10 k tries, it is V2/V3 [Elektroda, Multi_COM, post #5161939]

Is it legal to clone my own SIM?

Cloning violates most carrier terms and, in many countries, telecom acts. Possession of cloning gear can be interpreted as intent to intercept communications. Only accredited agencies get exceptions [ETSI, TS 102 900]. Always check national law before proceeding.

Why can’t modern V2/V3 SIMs be cloned at home?

V2/V3 cards throttle after 5–10 k KI attempts, then self-lock. A USB reader can only test ~3 k keys per hour, so you brick the SIM long before revealing KI [Elektroda, Multi_COM, post #5161939] The newer COMP128-3 algorithm also randomises challenge responses, defeating brute force [GSM Association, 2003].

Will two cloned cards stay online at the same time?

No. Once the network sees identical IMSIs on different BTS cells, it drops the older registration within seconds. Continuous dual use triggers fraud flags and can lead to deactivation [Elektroda, Multi_COM, post #5161939]

Can cloning be used to eavesdrop on calls like TV shows suggest?

Not in GSM. Voice travels through the core network, not phone-to-phone. A SpyPhone modifies firmware to auto-answer silently, but that’s unrelated to SIM duplication [Elektroda, lord_blaha, post #6010808]

What’s the risk of killing my original SIM during KI extraction?

High. Each wrong KI guess increments the card-limit counter. Hitting 10 k attempts disables the chip permanently—a 100 % failure for V2/V3 and a 5 % accidental rate on worn V1 cards [Elektroda, Multi_COM, post #5161939]

I already bought blank SIMs on Allegro—are they useless?

Blank programmable cards only help if your source SIM is V1. For V2/V3 they’re paperweights, as one user put it: “I can stick my blank cards in … anus?” [Elektroda, lord_blaha, post #5162000] Return or repurpose them for RFID experiments.

Are there legal alternatives to having two active phones on one number?

Yes. Era’s Tandem, Orange eSIM Twin, and Vodafone OneNumber give two SIMs bound to one account for about €5/month, carrier-approved and cloning-free [Era, Service Page].

Edge-case: Can I clone a pre-2001 SIM just to recover old contacts?

Yes. Dump files (IMSI, KI, SMS store) to a blank Silvercard, insert, and read contacts via any GSM phone. This avoids damaging the ageing original [Elektroda, aceton, post #5154766]

How do special services clone new cards for investigations?

They use FPGA-based rainbow-table rigs ±€7 k that pre-compute COMP128 responses and bypass card-limit logic via power glitching. Such equipment is export-controlled and not sold to the public [Elektroda, andreee, post #6002509]

Quick 3-step procedure to clone a V1 SIM at home?

  1. Insert original SIM into Phoenix reader; run SimScan until KI appears (1–3 h). 2. Program IMSI and KI onto a Silvercard using Cardinal. 3. Test the clone in an unlocked phone; keep the original powered off to avoid network kicks.
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