Track Stallion Express Canadian shipments handed off to Canada Post, UniUni, FleetOptics, and ICS Courier.

Within Canada, Stallion Express aggregates merchant parcels across Ontario, British Columbia, Quebec, and Alberta and routes them to Canada Post, UniUni (JY… / UUS…), FleetOptics, or ICS Courier for final residential delivery.

Try a live tracking number:

Barcode transition: Stallion Express to Canada Post / UniUni

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

Origin / middle-mile carrier
Stallion Express (stallion)
Stallion Express / Canada Post 16-digit or UniUni JY… barcode
^(\d{16}|JY[0-9A-Z]{10,16}|SE[0-9A-Z]{8,16})$
Origin example
4012345678901234
Final-mile carrier
Canada Post / UniUni (canadapost)
Canada Post 16-digit or UniUni barcode
^(\d{16}|JY[0-9A-Z]{10,16})$
Final-mile example
4012345678901234
Middle-mile resolution
Item processed at Canada Post facility MISSISSAUGA ON

How the Stallion → Canada Post handoff works

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

1. Stallion Express branch intake
The merchant drops off the parcel at a Stallion Express location in GTA, Metro Vancouver, Montreal, or Calgary.
2. Regional sort & carrier injection
Stallion sorts parcels by FSA postal code and transfers urban parcels to UniUni/FleetOptics and national/rural parcels to Canada Post.
3. Final Canadian delivery
Canada Post or UniUni scans the parcel through local delivery and provides delivery confirmation.
Stallion Express query
GET /v1/track/{number}?carrier=stallion
Canada Post query
GET /v1/track/4012345678901234?carrier=canadapost
UniUni query
GET /v1/track/{jyNumber}?carrier=uniuni

Chain Stallion → Canada 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 Stallion Express middle-mile scans on the 92… barcode:
curl "https://api.lastscanned.com/v1/track/4012345678901234?carrier=stallion" \
  -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/4012345678901234" \
  -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 Stallion Express 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=stallion`, { 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"

Stallion Express Domestic & Cross-Border to Canada Post, UniUni & FleetOptics Handoff FAQ

Which carriers deliver Stallion Express packages inside Canada?
Stallion Express partners with Canada Post, UniUni, FleetOptics, and ICS Courier to cover both high-density Canadian metro areas and rural postal codes.
How long does Stallion Express domestic shipping take in Canada?
Local metro deliveries within the GTA or Lower Mainland typically arrive in 1 to 2 business days, while inter-provincial linehaul takes 3 to 6 business days.

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