How detection works
TrackJet's detector recognises formats structurally — length, prefixes, and check digits — so a typo is caught before any lookup. These are the formats per vertical, each with a structurally valid example you can try.
Air cargo (AWB)
IATA air waybills: 123-12345678 — a 3-digit airline prefix, a hyphen (optional when pasting), 7 digits, and a mod-7 check digit. Example: 020-12345675 (Lufthansa prefix 020). The result page shows the airline resolved from the prefix.
Ocean containers
ISO 6346: four letters (owner code + equipment category, e.g. MSCU) + 6 digits + a check digit: MSCU1234565. The check digit catches the most common transcription errors.
Bills of lading
B/L numbers have no universal checksum — each carrier formats its own (often a SCAC prefix like MAEU + digits). TrackJet matches known carrier patterns; unknown patterns fall back to a carrier picker.
International post (UPU S10)
Two letters + 9 digits + two-letter country code, with a check digit: RR123456785IT. The leading letters encode the service (R = registered, E = EMS, C = parcel…).
Parcels
Carrier-specific formats: UPS 1Z numbers (e.g. 1Z999AA10123456784), DHL waybills (10 digits) and DHL eCommerce (GM…/LX…), FedEx 12/15/20-digit, DPD 14-digit, Royal Mail S10-style. The detector picks the carrier from the structure; when two carriers could both match, you choose.
Tips
- Spaces and hyphens are ignored — paste numbers exactly as the carrier shows them.
- If detection fails, count the digits first: 90% of failures are a missing or extra character.