Track TopYou (`TY...`) parcels from China air export to Heathrow (`LHR`) and Royal Mail Tracked 48 (`...GB`) delivery

TopYou (`TY...`) consolidates UK e-commerce orders in Shenzhen/Hong Kong, clears HMRC UK VAT rules at London Heathrow (`LHR`), and inducts parcels into Royal Mail's National Distribution Centre (Daventry) or Jubilee/Midlands Super Hubs under a 13-character `...GB` Tracked 48 barcode.

Try a live tracking number:

Barcode transition: TopYou to Royal Mail

Domestic TopYou parcels keep the same 92… / 420… barcode from pickup to mailbox. Pass ?carrier=topyou to inspect middle-mile sort scans before USPS induction.

Origin / middle-mile carrier
TopYou (topyou)
TopYou Waybill (TY...)
^TY[0-9A-Z]{10,16}$
Origin example
TY84920194829GB
Final-mile carrier
Royal Mail (royalmail)
Royal Mail Tracked (...GB)
^[A-Z]{2}[0-9]{9}GB$
Final-mile example
WG849201949GB
Middle-mile resolution
Inducted into Royal Mail Midlands Super Hub (WG849201949GB)

How the TopYou → Royal Mail handoff works

Follow the parcel across both networks without waiting on asynchronous webhooks or losing visibility at the handoff boundary.

1. Origin Labeling (`Sender despatching item`)
TopYou prints a Royal Mail Tracked 48 (`...GB`) label in Shenzhen; `royalmail.com` shows `Sender despatching item` while the parcel flies to the UK.
2. Heathrow (`LHR`) HMRC Clearance
The air pallet clears UK customs at Heathrow and is trucked to Royal Mail's Midlands (Daventry) or North West (Warrington) Super Hub.
3. Royal Mail Delivery Office Scan
Royal Mail scans `Item received` at the Super Hub and routes the parcel to your local Delivery Office (`Ready for delivery`).
Royal Mail Barcode
13-character S10 format ending in `GB` (e.g., `WG...GB`, `OJ...GB`, `LA...GB`)
UK Induction Hubs
Midlands Super Hub (Daventry), North West Super Hub (Warrington), and Jubilee MC (Hounslow)

Chain TopYou → Royal Mail in code or MCP

Resolve both legs synchronously in TypeScript, curl, or your AI support agent via Streamable HTTP MCP.

REST (Synchronous GET)

# 1. Query TopYou middle-mile scans on the 92… barcode:
curl "https://api.lastscanned.com/v1/track/TY84920194829GB?carrier=topyou" \
  -H "Authorization: Bearer lsk_live_YOUR_API_KEY"

# 2. Query USPS final-mile scans on the same barcode:
curl "https://api.lastscanned.com/v1/track/WG849201949GB" \
  -H "Authorization: Bearer lsk_live_YOUR_API_KEY"

TypeScript (Automatic Handoff Chaining)

const headers = { Authorization: `Bearer ${process.env.LASTSCANNED_API_KEY}` };
const res = await fetch(`https://api.lastscanned.com/v1/track/${encodeURIComponent(number)}`, { headers });
let pkg = await res.json();

// If USPS is still waiting on the consolidator parcel, query TopYou middle-mile hubs:
if (pkg.carrier === "usps" && pkg.status === "label_created" && /^(420\d{5})?9[2345]/.test(number)) {
  const mid = await fetch(`https://api.lastscanned.com/v1/track/${encodeURIComponent(number)}?carrier=topyou`, { headers });
  if (mid.ok) pkg = await mid.json();
}

Remote MCP (Claude Code / Cursor / ChatGPT)

claude mcp add --transport http lastscanned https://mcp.lastscanned.com \
  --header "Authorization: Bearer lsk_live_YOUR_API_KEY"

TopYou UK Linehaul to Royal Mail Tracked 48 Final-Mile Handoff FAQ

Why does Royal Mail say 'Sender despatching item' for 6 days on my TopYou order?
Royal Mail only receives physical possession after TopYou's flight from China lands at Heathrow and clears UK customs; track the `TY...` number on LastScanned to see the intermediate flight scans.
How long does Royal Mail take once they scan 'Item received'?
Royal Mail Tracked 48 delivers within 1 to 2 working days after the first UK Super Hub scan.

Other carrier handoff guides

Explore cross-border last-mile barcode extraction and domestic USPS consolidator overrides across all 273 carriers.

All 273 supported carriers

International posts and couriers

Cross-border