Track JCEX (Hangzhou JiaCheng) cross-border parcels through customs clearance and USPS, UPS, or FedEx delivery.

JCEX (Hangzhou JiaCheng International Logistics, a subsidiary of Huamao Logistics) operates cross-border air express and special-line parcel lanes from Hangzhou, Shanghai, and Shenzhen into North America and Europe, handing off cleared parcels to USPS (`92…`), UPS (`1Z…`), or FedEx (`77…`).

Try a live tracking number:

Barcode transition: JCEX (JiaCheng International) to USPS / FedEx / UPS

When JCEX (JiaCheng International) clears customs and hands off to USPS / FedEx / UPS, lastscanned surfaces the secondary tracking number in the top-level message field.

Origin / middle-mile carrier
JCEX (JiaCheng International) (jcex)
JCEX Waybill (JC… / Numeric / Pre-Allocated 92… or 1Z…)
^(JC[A-Z0-9]{8,16}|\d{10,14}|92\d{20,24}|1Z[A-Z0-9]{16})$
Origin example
9261290312833844954982
Final-mile carrier
USPS / FedEx / UPS (usps)
USPS 92… / UPS 1Z… / FedEx 12-digit
^(92\d{20,24}|1Z[A-Z0-9]{16}|\d{12,15})$
Final-mile example
9261290312833844954982
Extracted in .message
Customs cleared at LAX — handed over to USPS / UPS for final delivery

How the JCEX → USPS / UPS handoff works

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

1. JCEX Hangzhou / Shenzhen origin sort
JCEX consolidates parcels and assigns the destination USPS, UPS, or FedEx tracking number.
2. Air linehaul & US customs clearance
JCEX clears the consolidated manifest at LAX, ORD, or JFK and breaks down the air ULD containers.
3. USPS, UPS, or FedEx final mile
Small parcels induct into USPS Ground Advantage while multi-box shipments tender to UPS or FedEx Ground.
USPS query
GET /v1/track/9261290312833844954982?carrier=usps
UPS query
GET /v1/track/1Z999AA10123456784?carrier=ups
FedEx query
GET /v1/track/778899001122?carrier=fedex

Chain JCEX → USPS / UPS 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 JCEX (JiaCheng International) origin waybill (extracts final-mile barcode in .message):
curl "https://api.lastscanned.com/v1/track/9261290312833844954982" \
  -H "Authorization: Bearer lsk_live_YOUR_API_KEY"

# 2. Query the extracted USPS / FedEx / UPS barcode:
curl "https://api.lastscanned.com/v1/track/9261290312833844954982" \
  -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 ("Customs cleared at LAX — handed over to USPS / UPS for final delivery")
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"

JCEX JiaCheng International to USPS, FedEx & UPS Last-Mile Handoff FAQ

Why does my UPS or USPS tracking show 'Label Created' while JCEX shows it is in China?
JCEX generates the domestic US label in China before air departure. Once the shipment lands in the US and clears customs, UPS or USPS scans the barcode.
How long does JCEX US Special Line take?
JCEX US air linehaul typically delivers within 7 to 12 business days.

Other carrier handoff guides

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All 273 supported carriers

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