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UPS Tracking Number Format

Frequently Asked Questions

A UPS tracking number typically starts with "1Z" followed by a 6-character shipper number (a combination of numbers and letters), a 2-digit service level indicator, and finally, 8 digits that identify the package. In total, the tracking number consists of 18 characters.

"1Z" tracking numbers are structured as follows: 1Z xxx xxx yy zzzz zzz c, where:

  • xxx xxx represents the alphanumeric account number of the shipper.
  • yy is the service code.
  • zzzz zzz is the package identifier.
  • c is a checksum.

Mike has developed a tool online to check the checksum.

Non-exhaustive List of Service Codes

  • 01: UPS United States Next Day Air ("Red")
  • 02: UPS United States Second Day Air ("Blue")
  • 03: UPS United States Ground
  • 12: UPS United States Third Day Select
  • 13: UPS United States Next Day Air Saver ("Red Saver")
  • 15: UPS United States Next Day Air Early A.M.
  • 22: UPS United States Ground - Returns Plus - Three Pickup Attempts
  • 32: UPS United States Next Day Air Early A.M. - COD
  • 33: UPS United States Next Day Air Early A.M. - Saturday Delivery, COD
  • 41: UPS United States Next Day Air Early A.M. - Saturday Delivery
  • 42: UPS United States Ground - Signature Required
  • 44: UPS United States Next Day Air - Saturday Delivery
  • 66: UPS United States Worldwide Express
  • 72: UPS United States Ground - Collect on Delivery
  • 78: UPS United States Ground - Returns Plus - One Pickup Attempt
  • 90: UPS United States Ground - Returns - UPS Prints and Mails Label
  • A0: UPS United States Next Day Air Early A.M. - Adult Signature Required
  • A1: UPS United States Next Day Air Early A.M. - Saturday Delivery, Adult Signature Required
  • A2: UPS United States Next Day Air - Adult Signature Required
  • A8: UPS United States Ground - Adult Signature Required
  • A9: UPS United States Next Day Air Early A.M. - Adult Signature Required, COD
  • AA: UPS United States Next Day Air Early A.M. - Saturday Delivery, Adult Signature Required, COD

UPS Tracking Number Structure

  • 1Z xxx xxx yy zzzz zzz c (10 digits)
  • 1Z xxx xxx yy zzzz zzz c (12 digits)
  • 1Z xxx xxx yy zzzz zzz c (9 digits)
  • H + 10 digits
  • V + 10 digits
  • 18 digits

UPS Tracking Number Examples

  • 234918751
  • 1Z662F416878787827
  • 1Z001985YW96579840
  • 1Z001985YW99744790
  • 1Z001985YW90838348
  • 1Z001985YW92164287
  • 1ZE8889W0442766202
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