Courier Tracking Number Guide
Account: RespiClear
05/13/26
Starting digits or tracking number format to easily identify the courier service.
• EasyPost – varies depending on the carrier used
17TRACK EasyPost Tracking
• USPS – usually starts with:
94, 93, 92, 95
Example: 9400 1000 0000 0000 0000 00
USPS Tracking
• UPS – usually starts with:
1Z
Example: 1Z999AA10123456784
UPS Tracking
• CIRRO – tracking numbers may start with:
CIR, CN, or alphanumeric combinations
CIRRO Tracking
• Asendia – usually starts with:
A, ES, or letters with numbers
Example: ES123456789CH
Asendia Tracking
• Universal Parcel Tracking – supports multiple courier formats worldwide
Universal Parcel Tracking