Parcel Number Checker
Identifies the courier from an invoice number’s format, validates its check digit and builds the tracking link.
A tracking number on its own does not say which courier it belongs to, and typing it into the wrong site returns nothing rather than an error. Length, prefix and check digit are usually enough to identify the carrier and build the link.
Tracking number
Hyphens and spaces are ignored. An international item looks like EE123456785KR.
Several at once
One per line, or separated by commas or tabs.
Number length by courier
| Courier | Digits | Notes |
|---|---|---|
| CJ대한통운 | 10 · 12 | It carries the most domestic parcels, so a 12-digit number is the one to try here first. |
| 우체국택배 | 13 | Registered mail and parcels are both 13 digits. International post is a separate format opening with two letters. |
| 한진택배 | 10 · 12 | |
| 롯데택배 | 12 | |
| 로젠택배 | 11 |
- Korean couriers do not publish a check rule for their waybill numbers. Only the length is checked, and a matching length does not mean the number exists.
- International post (EMS and registered mail) follows the Universal Postal Union’s S10 standard, so its check digit can actually be verified.
- Where several couriers share a length, all of them are listed. The digits alone do not separate them.
- The tracking links go to each courier’s own page. The delivery status is theirs, not this tool’s.
How to use it
Paste the number
Several at once is fine. Spaces and hyphens are ignored.
Read the candidates
Where a number carries a check digit — CJ대한통운’s does — the match is close to certain. Where it does not, several couriers share a length and the tool lists them.
Follow the link to the courier
The tracking URL is built for you. The status itself comes from the courier — this tool identifies and links, it does not query.
Common questions
Does it show where my parcel is?
No. Live status is the courier’s to give, and each has its own site. This gets you to the right one with the number already filled in.
Nothing matched.
Check for a missing or extra digit first. An international number — an EMS code with a two-letter prefix and country suffix, or a foreign carrier’s number — follows different rules, and a marketplace order number is not a tracking number at all.
The check digit fails but the number works on the site.
Then it belongs to a courier whose numbers have no check digit, and the failing check was against a different carrier’s rule. Trust the courier’s own site.
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