How does package tracking work?

Carriers assign each parcel a unique tracking number that follows a predictable format (length, prefix, check digits). Package Tracker matches that format against known carrier patterns, then links you to the official carrier tracking page where the live status is shown.

Why is my tracking number not updating?

New labels can take a few hours to appear after they are scanned for the first time. International parcels can also go quiet while they move between carriers or clear customs. If a number is still blank after 24–48 hours, double-check it with the sender.

Can I track international parcels?

Yes. Package Tracker supports international formats for USPS, UPS, FedEx, DHL, Canada Post, Royal Mail, Australia Post, and China Post, and falls back to a web search for less common carriers.

Which carriers are supported?

USPS, UPS, FedEx, DHL, Canada Post, Royal Mail, Australia Post, and China Post are detected automatically. You can also pick 'Other' to search for the carrier.

Does Package Tracker store tracking numbers?

No. Recent numbers are kept in your browser's session storage so they survive a page refresh, but they are cleared when you close the tab and never sent to any server.

Can one tracking number be tracked on both carriers?

Often yes, especially for UPU-format numbers. Package Tracker shows the most likely carrier first and lets you switch manually.

International Parcel Tracking, Explained

International shipments usually involve two carriers

The origin carrier (e.g. China Post, Royal Mail) hands the parcel to a destination carrier (e.g. USPS, Canada Post). Each maintains its own tracking system.

Reading the country code

UPU-format international numbers end in 2 letters identifying the origin country: CN (China), GB (UK), US (USA), CA (Canada), AU (Australia). Package Tracker uses this to suggest the right carrier.

The customs step

Once a parcel arrives in the destination country, it clears customs before the local carrier picks it up. This step can add anywhere from hours to several days depending on volume and content.

Try the tool

Package Tracker

Track parcels across carriers from one simple interface.

Open Package Tracker

Frequently asked questions

The origin carrier loses visibility once the parcel leaves its network. Wait for the destination carrier's first scan — try tracking the same number on the destination carrier's site.

Jun 3, 20265 min read