Generate a UPS tracking number

Keep this the same on every number, like a real account.
01 Next Day Air · 13 Next Day Air Saver · 03 Ground · 65 Saver
1Z999AA10123456784

Bulk generate

Check any number

Known-good test numbers

All seven must show as valid. Only the first also resolves on real ups.com.
1Z999AA10123456784
1Z001985YW99744790
1Z001985YW92164287
1Z001985YW96579840
1Z001985YW90838348
1Z662F416878787827
1ZE8889W0442766202