Zcash Founder Contributes to the Development of a Privacy-Focused Phone Service

Phreeli, the new U.S.-based mobile carrier founded by Zcash co-founder Zooko Wilcox, is revolutionizing privacy in telecommunications by signing up users with just their zip code and using zero-knowledge proofs to handle billing, ensuring complete anonymity. This groundbreaking approach not only minimizes personal data sharing but also disrupts traditional mobile carriers' practices of monetizing user information.

Magnus Oliver

December 8, 2025

Imagine a world where your phone service strips away the concept of oversharing personal data. Well, fantasize no more. Thanks to Zcash co-founder Zooko Wilcox, this is becoming a reality with Phreeli, the new U.S.-based mobile carrier that promises supercharged privacy by utilizing only your zip code and zero-knowledge proofs to sign you up and manage your bill payments. Let's pull back the curtain on what this means for you, shall we?

First off, Phreeli's approach to signing up is refreshingly sparse. You provide a zip code, and voila, you're in the system. No names, birth dates, or social security numbers needed. This stealth mode extends to billing - where customers can pay without exposing their credit card or bank information. The magic? Zero-knowledge proofs, an encryption technique that verifies transactions without revealing any underlying data. According to an article from Decrypt, Wilcox advised Phreeli on implementing this technology, dubbed the "Double-Blind Armadillo" system. By doing so, Phreeli can verify bill payments without keeping any payment details, ensuring complete user anonymity.

This isn't just a quirky tech feature; it's a bold strike against the invasive data practices of traditional mobile carriers. As Wilcox pointedly noted, most phone companies are less than scrupulous when it comes to user data, often selling detailed information, including locations, to the highest bidder. Phreeli aims to disrupt this norm, offering a refuge for those weary of being tracked and sold.

Moreover, for those extra cautious, Phreeli allows various levels of anonymity. Fancy paying your phone bill with Zcash or Monero? You can. Prefer a physical SIM card or want to download an eSim via a Tor-hosted site? Both options are on the table. This tailored approach not only enhances privacy but also gives power back to the user in deciding how invisible they truly want to be.

Despite its avant-garde technology, Phreeli assures that its services aren't a magnet for unlawful activities. As Nicholas Merrill, Phreeli's founder, stated in a Wired interview, the aim is to normalise privacy, not to provide a playground for criminals. They are targeting the everyday person who simply doesn’t want their life monetized by third parties.

So why should you care? In an era where data breaches are frequent and digital privacy is increasingly precarious, Phreeli's model could represent the future of telecom - a sector that sorely needs a privacy-focused shake-up. For instance, as we explored in Radom's recent blog post about the uncertainties faced by fiat-backed stablecoins, financial privacy is becoming a substantial concern for users globally. Phreeli could indeed set a trend.

Let's not mince words: Phreeli is an audacious project. Leveraging Zooko Wilcox's expertise, the service is tapping into the core spirit of blockchain and cryptocurrency - decentralization and privacy. It's a fascinating case study of how crypto technologies can transcend traditional financial boundaries and reformulate everyday services like mobile telecommunications.

With $5 million already funneled into Phreeli since its 2019 inception, and using T-Mobile’s infrastructure to boot, it’s clear there’s substantial backing and serious infrastructure underpinning this venture. For those of us who champion privacy, it’s a development worth watching - and perhaps, a service worth subscribing to. After all, in a world where your data is a commodity, going incognito might just be the smartest move you can make.

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