Field note 09 · 현장 수첩

Is That Korean Address Real? — How to Read It From Abroad, and Why "Real" Isn't Enough

From the operator of 해결사, a fixer service in Korea. Free to use, no email required. 한국어판 →

Somewhere on the page you're buying from, or at the bottom of the email you were sent, there is a Korean street address. Almost nobody reads it. It sits there looking official, and it does its job by sitting there — which is exactly why it's worth ten minutes of yours.

This note is about what that address can tell you from where you are, without a Korean phone number and without an account anywhere. Some of it needs no website at all. And the part I want you to leave with is the part that catches people: an address can be completely real — a genuine street, a genuine building, a genuine postal code — and still tell you nothing about whether a business operates there. Those are two different questions, and the first one is the easy one.

0. Why you already have an address

You didn't get lucky. Korean e-commerce law requires an online seller to display its business information where customers can see it — registered name, representative, business registration number, e-commerce filing number, contact, and the address of the place of business. That's why real Korean shops carry a dense block of text in the footer, and it's the same rule that field note 05 starts from.

So the address in front of you is a claimed address, put there under a legal obligation. That's a useful starting condition, and it sets up the only test that matters later: not whether the address is real, but whether everything they've told you agrees with it.

1. Read it before you look it up

Korean addresses are built to a published pattern, and once you see the pattern you can spot a malformed one without opening anything. A road name address runs from the largest unit to the smallest: province or metropolitan city, then city/county/district, then (in some places) a town or township, then the road name, then the building number, then unit details, and finally an optional parenthesis carrying the legal neighbourhood or the apartment complex name.

Two details do real work. First, the road name ends in one of three tiers, and the tier tells you what kind of road it is: 대로 (-daero) is a major arterial — 40 metres wide or more, or eight lanes or more; 로 (-ro) is the middle tier, roughly 12 to 40 metres; 길 (-gil) is everything smaller. Second, building numbers aren't arbitrary. They're assigned along the road from its starting point — odd numbers down one side, even numbers down the other — and they increase with distance, so the number is a rough position along that road rather than a serial.

What that buys you: a sense of whether the address describes a plausible place. A four-digit building number on a tiny -gil, or a district that doesn't belong to the city named in front of it, is worth a question. I'd rather you treat it as a prompt than a verdict — real addresses can look odd, and a scammer who copies a real address gets a perfectly well-formed one for free.

If they sent it romanized, remember the order flips. 서울특별시 강남구 테헤란로 521 is written in English as 521 Teheran-ro, Gangnam-gu, Seoul — smallest unit first, the mirror image of the Korean. If an "English" Korean address arrives in the Korean order, or mixes the two, somebody assembled it by hand.

2. Two address systems — and why the old one isn't a red flag

Korea runs on road name addresses (도로명주소), which became the legal standard nationwide at the start of 2014. Before that, addresses were built on land lot numbers (지번주소) — a district name followed by a parcel number, in the shape 〈dong name〉 159-1. The lot system was never deleted. It still appears on older records, older signage, and plenty of paperwork.

So: an address in the old format is not evidence of anything wrong. Neither is a six-digit postal code, which is simply the older format Korea replaced with five digits years ago — you're looking at a stale copy-paste, which is what most old business templates are. I'm flagging both because this is where a careful foreigner talks themselves into a false positive, and a false positive costs you a legitimate seller.

3. The government page that opens in English

Korea's address authority runs a public address search with English labels, and as of my checking today it opens from outside Korea with no login and no Korean identity verification: the road name address search. Its own examples are given in romanized form — 209 Sejong-daero, 1595 Sangam-dong — so you can put in the address exactly as an English-speaking seller would have sent it to you.

Now the limit, stated plainly, because it's the kind of thing I'd want told to me. I confirmed the search page loads and takes input. I did not confirm what the results screen hands back — I could see the search, not the answer. So run it yourself and read what you get; don't take a description from me that I couldn't stand behind. What this page is good for is the narrow question: does this address exist in the national register, spelled the way they spelled it?

4. Putting it on a map from outside Korea

Here you meet a wall that has nothing to do with your seller. Korea restricts the export of detailed mapping data — finer than 1:25,000 — to overseas servers, under a law motivated by national security, and the practical result has been that Google Maps is unusually weak in Korea. Walking and driving directions have been incomplete there for years, which is why people in Korea use domestic map services instead. This is a real legal constraint, not a bug on your phone.

That situation is changing, and I'll be careful about how much I claim. In February 2026 the Korean government approved a request to let high-precision map data leave the country under security conditions. What I have not verified is what the app actually does today, on your device, in the month you're reading this. Open it and see for yourself rather than trusting either version of the story.

The domestic maps are the ones locals use, and the reason they matter here is street-level imagery: a map tells you the address resolves, imagery tells you what's standing there. Kakao's map opened for me today from outside Korea, with a roadview control present in its interface; the interface itself is Korean, and your browser's translate function is enough to get around it — the same workaround field note 05 uses for the registries. Naver's map I could not get to render through my own tooling at all, in two attempts. I want to be exact about that: that is a statement about my tools, not about their site. It may well work perfectly in your browser. Try it.

5. The registry column nobody looks at

If the seller is an online seller, there's a cross-check most people walk past. The Fair Trade Commission's public register of e-commerce sellers — 통신판매사업자 등록현황, no login — returns a row per seller, and alongside the name, representative, domain and operating status that field note 08 covers, there is a 지역 column: a region.

It is not a street address, and I could not confirm which administrative level it reports — whether that's the province, the city, or something narrower. Take it for what it is: a coarse locality attached to the registration. A coarse match proves very little. A coarse mismatch — a registration filed in one province while the shop's footer address sits at the other end of the country, with no explanation offered — is a question you're entitled to ask before money moves.

6. What a perfect address still doesn't prove

Now the part this whole note exists for. Suppose everything above came back clean. The address parses, the register knows it, the map finds it, the imagery shows a building. Here is what you have not established.

That the building is a shop. In Korea an online business can be registered at a home address, and enormously many legitimate small sellers are — an apartment, an officetel, a unit number and all. Renting a business address from a non-resident office service is also an ordinary, unremarkable arrangement. So an address that turns out to be a residential block is not a discovery about fraud. It is the most common shape a small Korean online seller takes. Treat "it's just an apartment" as a red flag and you will accuse honest people and learn nothing.

That goods sit there. Warehousing and forwarding addresses are routinely shared by many businesses at once. Finding that several unrelated sellers list the same address is a fact about logistics before it is a fact about anyone's honesty.

That anyone is there now. This is the one that actually costs people money. Every check in this note reads a record or an image, and records and images are both older than your transaction. A registration records that a business was set up somewhere. Street imagery records what a camera saw on some day in the past. Neither of them is watching the address today, which is precisely the thing you wanted to know.

7. So what is the address actually for?

It's for creating contradictions. On its own an address is nearly inert — it exists or it doesn't, and existing is cheap. Its value is that it's one more fact that has to agree with all the others: the region on the registration, the name in the footer, the story you were told about where the goods are, the place the return would go back to. Anyone recycling somebody else's paperwork now has to keep several borrowed facts consistent with each other, and borrowed facts drift.

So don't ask "is this address real." Ask what it agrees with. That question you can answer from where you are, with the pages above, in an afternoon — and unlike a green checkmark, an answer built out of agreement between independent records is worth what it appears to be worth.