Bonum Certa Men Certa

Anonymous SIM Not the Same as Anonymous Phone Ownership

posted by Roy Schestowitz on Aug 23, 2024

Home phone

The "Anonymous SIM Challenge" has been postponed or called off completely. More than a decade ago I researched the market at shops around here and wrote down my findings, then published a summary.

Many years have passed and last year this article by Luuk van Roosmalen showed that things had not deteriorated, i.e. not quite as one can expect. He said: "Regular people might also use an anonymous SIM card if they are very concerned about their privacy. This might be true of journalists or activists acting in countries that don’t respect freedom of expression so much. There are other easier and cheaper ways to protect yourself online however."

Some people say those cards can be purchased anonymously for about a pound. The more detailed of the answers says:

In the UK, you can purchase anonymous SIM cards from several places. Here are some options:
  1. Retail Stores: Many convenience stores and supermarkets sell prepaid SIM cards that can be purchased without providing personal information. Look for stores like:
    - Tesco
    - Sainsbury's
    - Asda
    - WHSmith
  2. Mobile Phone Shops: Shops like Carphone Warehouse or EE often offer prepaid SIM cards. You can usually buy these without needing to register.
  3. Online Retailers: Websites like Amazon or eBay may have sellers offering prepaid SIM cards. Make sure to check the seller's reputation and return policy.
  4. Vending Machines: Some cities have vending machines that sell prepaid SIM cards.
  5. Local Markets: In some areas, local markets may have stalls selling mobile phone accessories, including SIM cards.

When buying a SIM card, ensure it is a prepaid option, as these typically do not require personal identification. However, keep in mind that regulations may require some level of identification for activation, depending on the provider. Always check the specific requirements of the SIM card you choose.

So this sort of renders the "challenge" moot. It seems like it's still possible. In some countries it is not possible "officially", but people can turn to a "black market".

Like stated before, I've no intent of purchasing one or carrying around a mobile phone. It's just the prospect of anonymous phone ownership that's intriguing because, as Luuk van Roosmalen pointed out, many firms falsely advertise anonymity when in practice it is a lot more complicated than anonymous purchase, top-up etc. The voice, location, call history (like phone book) etc. give away one's identity quite fast, with or without other data sources conjoined (like camera footage from nearby cameras). Offline devices are one's best chance. I still carry around a Palm PDA. It's over 20 years old. It still works.

Other Recent Techrights' Posts

European Patent Office (EPO) Series: Czech Mate: EPO Kingmaker or Merely a Pawn in the Game?
recent "missions" of the EPO President
SLAPP Censorship - Part 131 Out of 200: A Big Win for the Media in the United Kingdom (UK) Today
In a democratic society the Right to Know, which is closely connected to freedom of the press (or what one might label "blogging" or "blag"), comes above all else, except where there are lives being put at risk
IBM's Fedora Plans to Integrate Slop Into "Fedora Workstation as a Default Feature."
IBM does not care whether the community wants this or not
The Media Talks a Lot About XBox Layoffs, a Closer Look at the Data Shows Microsoft 'Bloodbath'
'Bloodbath' is the term insiders use
 
Over at Tux Machines...
GNU/Linux news for the past day
IRC Proceedings: Tuesday, July 07, 2026
IRC logs for Tuesday, July 07, 2026
Links 07/07/2026: Microsoft Cuts Doom "id Software" and Turkey Detains Journalists
Links for the day
Gemini Links 07/07/2026: Old Computer Challenge (OCC) and Hardware Tests
Links for the day
A Break From the Routine
What matters is what whistleblowers keep feeding information to us
SLAPP Censorship - Part 132 Out of 200: When You Cannot Pay a Million Pounds (1,335,520.00 United States Dollar) to Lawyers But Have a Strong Community
Techrights compensates for its fiscal poverty with a wealth of community spirit
Fame is Not the Goal
"Fame" kills
Mental Health in Free Software Communities
clearly there is a subject that merits debate and it ought not be a taboo anymore
The Era of Sponsored Spam
There is no "era of AI", there is era of BRIBES to PRETEND there is an "era of AI"
Gemini Links 07/07/2026: Cleaning, Old Computer, and More
Links for the day
Links 07/07/2026: Le Monde Combats LLM Slop Plagiarism, "ACLU Launches Largest Ever Midterm Electoral Program"
Links for the day
Extremism in the Free Software World is Mostly a Myth
Only the firm belief that justice applies to all will produce a just society
Over at Tux Machines...
GNU/Linux news for the past day
IRC Proceedings: Monday, July 06, 2026
IRC logs for Monday, July 06, 2026
Links 07/07/2026: Kernelized Secure Operating System (KSOS) and "Exploiting Thoughtcrime in LLMs"
Links for the day
SLAPP Censorship - Part 130 Out of 200: Jealousy, Envy, Hubris
This site is primarily about Free software
Gemini Links 06/07/2026: Still Mostly Dry, GoToSocial, and More
Links for the day
European Patent Office (EPO) Series: Effective Dispute Resolution… But Not For EPO Staff
Slovenia fielded one of the few Administrative Council delegations which managed to maintain its own independent line against the tyrannical EPOnian "Sun King"
Community Sites Need Genuine Collaboration and True Autonomy
People who want to communicate, federate and organise for effective change need to evolve
Free Software Foundation (FSF) Covers Quibble, Free Software for Secure Communications, in the FSF Summer Bulletin
The Georgia Tech folks are bringing Free software education and contributions to one of the better known Computer Science hubs in the US
Microsoft Layoffs Include Windows, Bing, Slop (CoPilot etc.) and There Will More More Rounds (or Waves) to Come
"43% of Xbox laid off"
Obscene Contradiction in Microsoft's Layoffs Tally ("Official" Numbers Do Not Add Up)
Notice how they treat "LinkedIn" as separate
Preserving Comments About the Real IBM Before They Get Deleted
IBM in the 1980s is not what it is right now
Cybershow on "Escaping Prisons For Your Mind"
"THE CYBER SHOW: Stealing technofascism's boots, and stomping on its own face with them."
Links 06/07/2026: At Least 20% Staff Reduction in XBox (Microsoft), Taiwan Sees Uptick in Chinese Aggression/Provocation, Senator Rodante Marcoleta Arrested
Links for the day
Confirmed: Microsoft Layoffs Come in Two Waves, Just Like Last Summer
To us, what stands out is the admission from Microsoft that there are two (or more) waves
In Praise of the UK's Stance on Free Speech (but Some Reservations)
At the moment there is a healthy discussion going on with the objective of disrupting attacks on British press
Exposing Corruption at the European Patent Office (EPO), a Call for More Whistleblowers
We predict that, provided enough whistleblowers speak out, António "the unready" won't even finish his current term
Leaving Our Pets for Several Days
This week our pets will be worried that "mommy and daddy" are away
Dating Trees and Dating 'Apps'
several high-profile stories in the news about scandals in "dating apps"
DW Documentary About Julian Assange Turns 2
It was released just days after Assange had turned 53 and about two weeks after he had left the UK
Independent Media is the Only Form of Legitimate Media
Independent media is, indeed, what we need to demand more of
The Story of the European Patent Office (EPO) Wagging the Dog (EU)
The aim of the series is to properly inform the world - not just Europeans - how Europe's second-largest institution is run [...] How did a corporate hub of monopolies become so detached from the Rule of Law?
GNU/Linux Up to New High in Libya, Windows Down to All-Time Low
GNU/Linux touches 5% there, based on statCounter
Links 06/07/2026: Artists Reject Slop (or Even de Facto Bribes to Market/Endorse Slop)
Links for the day
SLAPP Censorship - Part 129 Out of 200: Iranian Tactics
Hunger for revenge compels people to do overzealous, irrational things
Quiet Week
Many in the US are still enjoying an extended weekend
The Media Needs to Speak of Slop as a Climate Issue Like It Did With Bitcoin
But the slop industry keeps paying the media to play along with the hype
IBM's Fall
IBM's fate is closely connected to that of the Free software movement because of the salaries
Social Dialogue at the European Patent Office (EPO) is Dead, the Strikes and Work Stoppage-Like Actions Carry on
What next for the EPO?
Over at Tux Machines...
GNU/Linux news for the past day
IRC Proceedings: Sunday, July 05, 2026
IRC logs for Sunday, July 05, 2026
Links 05/07/2026: Shadows of the Upper Peninsula and 2026 Old Computer Challenge
Links for the day