Track Quantium Solutions (Singapore Post) cross-border ePac and postal-commercial parcels into Australia Post and NZ Post.

Quantium Solutions—the international e-commerce logistics arm of Singapore Post (SingPost)—consolidates APAC marketplace and D2C shipments at Singapore Changi, Hong Kong, and Taipei for direct injection into Australia Post (`LX...SG`, `RX...SG`, or eParcel `33...`) and NZ Post.

Try a live tracking number:

Barcode transition: Quantium Solutions to Australia Post

When Quantium Solutions clears customs and hands off to Australia Post, lastscanned surfaces the secondary tracking number in the top-level message field.

Origin / middle-mile carrier
Quantium Solutions (quantium)
Quantium / SingPost Barcode
QS… / LX…SG / RX…SG
Origin example
LX918273645SG
Final-mile carrier
Australia Post (auspost)
Australia Post UPU S10 / eParcel
LX…SG / 33…
Final-mile example
LX918273645SG
Extracted in .message
Arrived at destination hub Sydney (AU) / Handed over to Australia Post

How the Quantium Solutions → Australia Post handoff works

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

1. Changi regional hub consolidation
Quantium Solutions sorts regional APAC e-commerce parcels at its Singapore Changi Regional eCommerce Logistics Hub.
2. Linehaul flight to Sydney, Melbourne, Brisbane, or Perth
Direct flights carry ULD mail bags and commercial pallets into Australian gateway airports.
3. Australia Post domestic delivery
Australia Post scans the UPU S10 (`LX...SG`) or eParcel (`33...`) barcode at its gateway facility and completes doorstep or Parcel Locker delivery.
Quantium query
GET /v1/track/LX918273645SG?carrier=quantium
Australia Post query
GET /v1/track/LX918273645SG?carrier=auspost

Chain Quantium Solutions → Australia Post 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 Quantium Solutions origin waybill (extracts final-mile barcode in .message):
curl "https://api.lastscanned.com/v1/track/LX918273645SG" \
  -H "Authorization: Bearer lsk_live_YOUR_API_KEY"

# 2. Query the extracted Australia Post barcode:
curl "https://api.lastscanned.com/v1/track/LX918273645SG" \
  -H "Authorization: Bearer lsk_live_YOUR_API_KEY"

TypeScript (Automatic Handoff Chaining)

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

// Extract secondary barcode from top-level message ("Arrived at destination hub Sydney (AU) / Handed over to Australia Post")
const handoff = originPkg.message?.match(/^Handed to (.+?) as ([A-Z0-9-]+)$/i);
if (handoff) {
  const [, , lastMileNumber] = handoff;
  const destRes = await fetch(`https://api.lastscanned.com/v1/track/${encodeURIComponent(lastMileNumber)}`, { headers });
  const destPkg = await destRes.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"

Quantium Solutions (SingPost) to Australia Post Handoff Tracking FAQ

What is Quantium Solutions?
Quantium Solutions is the international e-commerce logistics subsidiary of Singapore Post (SingPost), operating cross-border linehaul and fulfillment hubs across Asia-Pacific.
Does my `LX...SG` or `RX...SG` tracking number change in Australia?
Standard UPU `LX...SG` and `RX...SG` numbers track directly inside Australia Post without changing, while commercial `QS...` shipments generate a local Australia Post eParcel barcode.

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