Yun Express Tracking and Cainiao Explained: The Carriers Behind Your SHEIN, Temu and AliExpress Orders

Ten years ago, a parcel from a Chinese factory to a Western doorstep usually meant China Post the whole way, or a quick handover to whatever national postal service picked it up at the border. The explosive growth of Shein, Temu, AliExpress and their marketplace peers broke that model: no single postal service could move that volume of small, low-value packages cheaply enough, so a new layer of specialist cross-border logistics companies grew up to fill the gap.

Yun Express and Cainiao are two of the biggest names to come out of that shift. Neither was a household term a decade ago, and neither is trying to be one now — they operate in the middle of the journey, between the seller’s warehouse and your national post, which is exactly why their tracking numbers look unfamiliar and their websites are barely aimed at consumers at all.

If you’ve ordered from Shein, Temu or AliExpress, one of these two networks has almost certainly carried something to your door already, whether or not you noticed the name go by. This is the plain-English guide to Yun Express tracking and Cainiao tracking: what those YT and LP numbers mean, why they go quiet for days, and the exact moment your familiar postal service takes over.

Who Is Yun Express, and Why Is It Delivering My Clothes?

Yun Express (also written YunExpress) is a cross-border logistics company headquartered in Shenzhen. Its own site describes it as a “Cross-Border E-Commerce Logistics Expert” shipping door-to-door to 220+ countries and regions, handling more than a million shipments a day, with four of its own Boeing 777 freighters.

The Part That Matters: It Rarely Knocks on Your Door

Yun Express does not usually deliver the final mile. It collects parcels from sellers in China, consolidates them into big air shipments, flies them to your country, clears customs, then hands each parcel to a local partner. In the US that is very often USPS. In the UK, Royal Mail or Evri. In Germany, Deutsche Post.

Yun Express isn’t hiding from you. It’s just working in the part of the map where nobody scans anything for a while.

Who Is Cainiao, and Why Is It Delivering My AliExpress Order?

Cainiao is the logistics arm of Alibaba, which also owns AliExpress. Founded in 2013 and based in Hangzhou, it says its network spans more than 200 countries and regions and processes over four million cross-border parcels a day. The name, charmingly, means something like “rookie” in Chinese. It is not a rookie.

A Network, Not a Single Carrier

Cainiao builds the software, sorting hubs and partnerships, then routes your parcel through whichever mix of airlines, postal operators and couriers gets it there. For most readers, that means a hand-off to your national post or a courier like DHL.

If you chose “AliExpress Standard Shipping”, you were most likely handed to Cainiao whether you noticed or not.

Decoding the Tracking Number: YT, LP, CN and Friends

Tracking numbers look random. They aren’t. The first two letters tell you who created the label, and therefore who actually has data.

An LP Number Is a Reference, Not Proof of Custody

Some tracking sites say an LP number “can’t be tracked” because it’s a marketplace ID rather than a number a physical carrier scanned. That’s why an underlying carrier number (China Post, 4PX, Yanwen, or yes, Yun Express) sometimes appears alongside it.

You May End Up with Two or Three Numbers for One Parcel

The YT or LP number that left China. The postal number issued when it landed. They’re the same box. Nobody told the box.

Why “Tracking Not Found” for the First Few Days Is Completely Normal

This is the section for the 11 PM version of you. A shipping notification from Shein, Temu or AliExpress usually means a label has been created, not that a parcel is on a plane. Someone printed a sticker with a number on it. That number now exists in a database. It does not yet exist in any carrier’s scanner.

What Happens Before the First Scan

From there, the parcel has to be collected, driven to a consolidation warehouse, sorted into a bag with thousands of others heading to your country, and scanned in. Tracking data commonly takes up to 48 hours to appear after the number is first registered, and longer around Singles’ Day, Double Twelve and Chinese New Year.

So “tracking not found” or a lonely “Label created” means nothing has gone wrong. Give it 48 to 72 hours before you start to wonder, and seven business days before you start to worry.

The Second Silence

Once the first scan lands you’ll see a burst of activity (received, sorted, departed origin airport) and then… another quiet stretch. That’s the flight and the customs queue.

The Hand-Off: When USPS, Royal Mail, Canada Post or Australia Post Take Over

Every international parcel has a moment where it changes hands and the story gets confusing. Here’s what it looks like where you live.

United States: To USPS

Your parcel lands, clears US customs, and is trucked to a USPS facility. Your YT or LP timeline shows “Handed over to local carrier” or similar, and a 9400- or 9200-series USPS number appears. You can track it with USPS from that point.

The frustrating part: there can be a gap of a couple of days between “handed over” on the Chinese side and “Arrived at USPS Regional Facility” on the American side. The pre-advice (the electronic heads-up) has been sent. USPS just hasn’t run the box past a scanner yet. Electronic hand-off, physical hand-off and the first receiving scan are three separate events, and they rarely happen on the same day.

United Kingdom: To Royal Mail or Evri

UK-bound parcels go to Royal Mail (a number ending in GB) or, often for Shein and Temu, to Evri. If your app says “Delivered to Royal Mail” but Royal Mail says “We’re expecting it”, that’s the same pre-advice gap. It resolves within a day or two.

Canada and Australia: To Canada Post and Australia Post

Expect a number ending in CA or AU. Both national posts may show nothing until the item is physically processed at a domestic facility, a few days after the Chinese tracking says it has arrived. Australian biosecurity checks can add an extra pause.

Germany and Europe: To Deutsche Post and DHL

In Germany, Yun Express commonly hands to Deutsche Post, and DHL Parcel appears across Europe. Tracking the DHL number alongside the original YT number shows both halves of the journey.

Once There’s a Local Number, the Local Carrier’s Data Is the Truth

Wherever you are, the Yun Express or Cainiao timeline shows one final “Delivered to carrier” line and falls silent. That’s not a lost parcel. It’s a baton being passed.

What Changed in the US in 2025

Before 2025, parcels under $800 came into the US duty-free under the “de minimis” rule, with barely a customs pause. That ended for China-origin parcels in May 2025 and for all countries on 29 August 2025.

How It Shows Up on Your Tracking Page

For you, this shows up in three ways. Duties are now generally collected at checkout rather than at the door. More orders ship from US warehouses, which means a USPS or UPS number from day one and no YT or LP at all. And parcels that still fly from China get a real customs step that can add a day or two of quiet.

For marketplace-specific detail, our Shein, Temu and AliExpress shipping guides cover each store’s timelines and quirks.

How Long Does All This Actually Take?

Honest ranges, not marketing ones. Yun Express’s standard tier is broadly quoted at 7 to 15 days to the US and 7 to 12 business days to Europe, with economy services running 10 to 25 working days. Cainiao markets “Global 5-Day” and “10-Day” delivery on selected AliExpress lanes, but standard AliExpress orders still commonly take two to four weeks. Add one to five days for customs, and several more around Singles’ Day, Black Friday and Chinese New Year.

If your Yun Express tracking shows no movement for more than seven business days, or you’re past the estimated delivery window, contact the seller through the app.

How to Make This Never Happen Again

You can’t speed up a plane. But you can stop the guessing.

Check the Marketplace App First

Shein, Temu and AliExpress often show the local carrier number before anyone else, because they get it straight from Yun Express or Cainiao.

Save Every Number You’re Given

The YT or LP number and the local postal number are two halves of one story. Support will want both.

Use One Tracker That Follows the Hand-Off

Paste the original number into Parcel Monitor and it stitches both legs into one timeline, from the Shenzhen warehouse to your national post. No more three tabs. If you connect your inbox, it pulls the number out of every shipping email automatically, carriers you’ve never heard of included, and nudges you when your local carrier picks it up, which is the moment you actually care about.

Watch the Delivery Window, Not the Daily Scans

Cross-border economy shipping is designed to be cheap, not chatty. Quiet is the default.

Learn Your Local “Expecting It” Status

“We’re expecting it” (Royal Mail) and “Pre-Shipment” (USPS) both mean the paperwork beat the parcel. Normal.

In Short

Yun Express and Cainiao are real, enormous China-based networks that fly your parcel to your country and hand it to your national post. YT means Yun Express, LP means Cainiao, and a number ending in CN, GB, CA or AU (or starting 9400 for USPS) is a postal carrier. Blank tracking for the first 48 to 72 hours is a label waiting for its first scan, the quiet after that is the flight and customs, and the final “Delivered to carrier” line means your local post now owns the box. Wait seven business days of silence, or the end of the delivery window, before contacting the seller.

Ask & Answer

Is Yun Express a Real Company or a Scam?

Yun Express is a real, large cross-border logistics company based in Shenzhen, China, handling over a million shipments a day. Seeing its name on a Shein, Temu or AliExpress order is expected, not suspicious.

What Does a Yun Express Tracking Number Look Like?

Most Yun Express tracking numbers start with YT followed by 16 digits, 18 characters in total. One number is enough for a multi-carrier tracker to follow both the Yun Express leg and the local carrier leg.

What Does a Cainiao Tracking Number Look Like?

Cainiao tracking numbers usually begin with LP followed by 12 to 14 digits, or occasionally CN plus a mix of letters and digits. Postal-style numbers ending in CN (like LX123456789CN) are China Post or partner numbers that Cainiao also routes.

Why Does My Yun Express Tracking Say “Not Found”?

A label has been created but the parcel hasn’t had its first scan. Tracking data commonly takes up to 48 hours to appear, longer in peak season. Check again in 48 to 72 hours.

Why Did My Cainiao Tracking Stop After “Handed Over to Carrier”?

Because the local carrier now owns the parcel and the LP number has done its job. Find the local number in your marketplace app, or paste the original into a tracker that follows hand-offs.

How Long Should I Wait Before Contacting the Seller?

If there’s been no scan at all for seven business days, or you’re past the estimated delivery window in the app, contact the marketplace. Before that, silence is almost always just transit.

Yun Express and Cainiao were built to move parcels, not to explain themselves; Parcel Monitor reads their numbers so you don’t have to guess what they mean.