silent.link
Wheels down. Seatbelt sign off. Phone on — and you have LTE. Maps loads before you reach passport control, Signal is syncing in your pocket, and the only queue you're in is the taxi one. Meanwhile the SIM kiosk in arrivals is doing steady business: passport on the counter, credit card in hand, a form to fill in, a scan to store forever.
I've carried a silent.link eSIM for years, and that landing moment is the whole pitch: internet that starts working the second you arrive, in a deal where nobody learned your name.
Your SIM card is an identity document
Most people never tally up what "just grabbing a local SIM" actually costs. Dozens of countries legally require ID to buy one — and where the law doesn't insist, the carrier's form does. Passport, sometimes a photocopy, name, address, a payment trail. Your IMSI — the serial number baked into that SIM — is now tied to you in a telecom database you will never see, that leaks in every breach and answers every legal request that comes knocking.
The alternatives aren't better:
| Option | Who you deal with | What they collect |
|---|---|---|
| Local SIM at the airport | A carrier and a government registry | Passport scan, name, card, signature |
| Roaming on your home SIM | Your home carrier | Per-megabyte robbery, and every tower knows which country you're from |
| silent.link | Nobody | A Monero transaction. That's the entire relationship |
It's the same logic as my email setup: the vendor learns nothing about you by default. addy.io for email addresses; silent.link for gigabytes.
What silent.link actually is
An eSIM provider born out of the Bitcoin community, running since about 2020, selling data-only connectivity that works in over 160 countries through commercial roaming agreements — the same machinery your home carrier uses abroad, minus you. The design choices are the interesting part:
- No account. Not "account optional." There is no signup form, no email field, no name. Your order link is your credential — lose it, lose the line — so back it up somewhere safe, like your password vault.
- Crypto only, through their own self-hosted BTCPay Server: Bitcoin, Lightning, Monero, USDT. No card processor, no PayPal, no third-party checkout keeping its own ledger. They don't block Tor — the entire purchase works over an onion.
- Pay as you go. Entry costs a few dollars and includes a starting balance, data runs roughly $1.50/GB across much of Europe and North America (check their country list for current rates — this is a guide, not a price sheet), and the balance never expires. No subscription. You know how I feel about those.
- Optional number. The data eSIM is data-only. When some service demands an SMS code you don't want tied to your real number, they lease a real US or UK number that receives texts. It's a lease, not a property — treat it like a burner, because it is one.
No app, no membership tier, no monthly tithe. You buy gigabytes the way you'd buy fruit at a market with cash.
How to buy it
- Go to silent.link — over Tor if you're in the mood; they're fine with it.
- Pick the data eSIM and load a balance.
- Pay in Monero. This part matters: on-chain Bitcoin is a public ledger, and a purchase funded from a KYC exchange points back at you forever. Monero is the private path. I pay from Cake Wallet; how you acquire your Monero is your business.
- You get a QR code. Install it before you fly — see the gotchas.
- Phone settings: silent.link becomes the default data line, roaming ON. Your home line stays in the other slot for calls and SMS with data roaming OFF, so it can't bill you or leak which country you're in.
That's the entire setup. There is no step where you tell anyone who you are.
Why roaming quietly routes around censorship
Here's the super power, and the part nobody expects: a roaming SIM doesn't just work abroad — it sidesteps the local internet's rules entirely.
When you roam, your phone touches a local tower — in China, that's China Mobile's radio. But under the old GSM standards, your packets are then tunneled back to the issuing carrier's gateway and break out to the open internet from there. Your traffic exits abroad. Foreign IP, foreign DNS, no local filtering in the path. The Great Firewall censors the local breakout — and a roamer never touches it. Google, WhatsApp, Signal, whatever you had at home: they load like you never left. I've watched this work year after year, including behind the Great Firewall itself.
And notice what this isn't: it isn't circumvention software. There's no VPN app on your phone, no protocol fingerprint for a censor to detect, nothing to declare at a border. It's plain international roaming, the kind business travelers have done for three decades — ordinary data, not a "bypass tool."
Two honest caveats. This home-routing behavior is a decades-old standards quirk, not a signed contract with the future — assume it works until the day it doesn't. And no SIM survives a total network shutdown; roaming rides the same radio as everything else.
What it does not do
The ceiling, stated plainly: no eSIM makes you invisible on the network. Your phone still broadcasts its IMEI to every tower it touches, carriers still log connections and approximate location, and a phone bought in your name is still — see the problem — a phone bought in your name. What silent.link removes is the paper trail: the passport scan, the name, the card, the database row tying a SIM serial to a human. The radio layer was never private to begin with. That's a bigger project, and it starts with your hardware and your operating system.
Same honest framing as the email rule: the vendor knowing nothing is a real win, but it is one less ledger with your name on it, not magic invisibility.
Gotchas I have personally paid for
- Install before you fly. The eSIM QR needs to be scanned while you still have open internet. Landing behind a censor and then trying to fetch an eSIM profile is a chicken-and-egg problem with no elegant solution. Home, Wi-Fi, scan, done.
- The roaming toggles are the whole trick. silent.link needs data roaming ON to work at all; your home line needs data roaming OFF to not financially ruin you. Getting those backwards is a $15-per-megabyte lesson.
- Data only, by design. Nothing about the data plan places calls. Your home SIM handles voice and SMS on the other slot; when a service demands a number you'd rather not hand over, that's what the leased US/UK option exists for.
- You're paying for the posture, not the gigabytes. Per-GB this costs more than a local plan. You're buying the missing paper trail and the censorship immunity, and for me that trade has paid for itself on every single trip.
Your photos live on your disk. Your notes sync through your own server. Now the data in your pocket is bought like cash, works at landing, and was never attached to your name in the first place.