Track Anjun Express parcels through customs clearance and USPS final-mile delivery.

Anjun Express consolidates cross-border e-commerce parcels under an origin waybill (AJ482910493CN) and injects them into USPS (9261290312839401928374) via JFK / LAX CBP Type 86 release to USPS Ground Advantage. Querying lastscanned with ?carrier=anjun returns origin export and linehaul events, while querying the USPS tracking number returns domestic final-mile delivery scans.

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Barcode transition: Anjun Express to USPS

When Anjun Express clears customs and hands off to USPS, lastscanned surfaces the secondary tracking number in the top-level message field.

Origin / middle-mile carrier
Anjun Express (anjun)
Anjun Express Waybill
AJ4… alphanumeric waybill
Origin example
AJ482910493CN
Final-mile carrier
USPS (usps)
USPS Barcode
9261… domestic barcode
Final-mile example
9261290312839401928374
Extracted in .message
Handed over to final-mile carrier USPS (9261290312839401928374) — JFK / LAX CBP Type 86 release to USPS Ground Advantage

How the Anjun Express → USPS handoff works

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

1. Origin induction (Anjun Express)
The merchant inducts the parcel into Anjun Express under origin tracking ID AJ482910493CN.
2. Linehaul & customs (JFK / LAX CBP Type 86 release to USPS Ground Advantage)
The shipment clears customs at JFK / LAX CBP Type 86 release to USPS Ground Advantage and receives domestic USPS barcode 9261290312839401928374.
3. Final-mile delivery (USPS)
USPS completes local sorting and doorstep or parcel locker delivery.
Origin Carrier Slug
anjun
Destination Carrier Slug
usps
Primary Injection Gateway
JFK / LAX CBP Type 86 release to USPS Ground Advantage

Chain Anjun Express → USPS 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 Anjun Express origin waybill (extracts final-mile barcode in .message):
curl "https://api.lastscanned.com/v1/track/AJ482910493CN" \
  -H "Authorization: Bearer lsk_live_YOUR_API_KEY"

# 2. Query the extracted USPS barcode:
curl "https://api.lastscanned.com/v1/track/9261290312839401928374" \
  -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 ("Handed over to final-mile carrier USPS (9261290312839401928374) — JFK / LAX CBP Type 86 release to USPS Ground Advantage")
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"

Anjun Express to USPS Handoff Tracking FAQ

How do I track a Anjun Express parcel handed off to USPS?
Query GET /v1/track/AJ482910493CN?carrier=anjun for origin and customs milestones, and GET /v1/track/9261290312839401928374?carrier=usps for final-mile delivery scans.
When does the USPS tracking number become active?
USPS pre-advises the label at dispatch, and live hub scans begin within 24–48 hours after customs release at JFK / LAX CBP Type 86 release to USPS Ground Advantage.

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