Track US ShipStation and Stamps.com GlobalPost (`GP...US`) parcels through Los Angeles into Australia Post eParcel.

US Shopify, WooCommerce, and eBay merchants using ShipStation, Stamps.com, or ShipEngine ship Australia-bound orders via GlobalPost Standard/Economy (`GP...US` or domestic USPS `9400...` intake labels). After consolidation at GlobalPost's Los Angeles (Torrance) or Chicago gateway, parcels fly to Sydney or Melbourne, clear Australian Border Force via DAI Post, and inject into Australia Post eParcel (`33...`) or UPU (`LX...`).

Try a live tracking number:

Barcode transition: GlobalPost to Australia Post

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

Origin / middle-mile carrier
GlobalPost (globalpost)
GlobalPost Waybill (GP + 9 digits + US)
GP…US
Origin example
GP192837465US
Final-mile carrier
Australia Post (auspost)
Australia Post eParcel / S10
33… / LX…US
Final-mile example
33X9K019283701000930001
Extracted in .message
Cleared Australian Customs - Handed over to Australia Post

How the GlobalPost → Australia Post handoff works

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

1. US USPS first-mile to GlobalPost sorting center
The US seller drops the parcel at USPS, which delivers it to GlobalPost's Los Angeles, Chicago, New York, or Miami international processing center.
2. Relabeling & air linehaul to Sydney / Melbourne
GlobalPost scans the parcel under its `GP...US` ID, links an Australia Post eParcel (`33...`) or postal barcode, and flies it to SYD or MEL.
3. Australia Post final-mile delivery
After customs clearance (often via DAI Post), Australia Post inducts the parcel for residential, PO Box, or Parcel Locker delivery.
GlobalPost query
GET /v1/track/GP192837465US?carrier=globalpost
Australia Post query
GET /v1/track/33X9K019283701000930001?carrier=auspost

Chain GlobalPost → 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 GlobalPost origin waybill (extracts final-mile barcode in .message):
curl "https://api.lastscanned.com/v1/track/GP192837465US" \
  -H "Authorization: Bearer lsk_live_YOUR_API_KEY"

# 2. Query the extracted Australia Post barcode:
curl "https://api.lastscanned.com/v1/track/33X9K019283701000930001" \
  -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 ("Cleared Australian Customs - 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"

GlobalPost to Australia Post & DAI Post Handoff Tracking FAQ

Why did my US tracking number say 'Delivered to Torrance, CA' when I live in Australia?
GlobalPost uses a domestic USPS label to move your parcel from the US merchant to GlobalPost's international sorting center in Torrance/Los Angeles, CA (or Elk Grove Village, IL). Once received there, it exports to Australia under a `GP...US` tracking number.
Who delivers GlobalPost packages in Australia?
Australia Post handles final-mile delivery for GlobalPost shipments across Australia.

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