Your permanent resident card number, also known as the receipt number, is a 13-digit number that is printed on a permanent resident card. It’s also called a case number because it refers to your specific immigration case.
The permanent resident card number generally begins with three letters followed by a series of 10 numbers. Each of these characters has a significance in your case. However, your card number is different than your alien registration number (A-Number) and USCIS number.
How to Find Your Permanent Resident Card Number
Your permanent resident card number is printed on the back side of the current edition of the permanent resident card (pictured above). On prior editions of the card, the number may have been printed in different locations (or was not used at all).
How to Read Your Card Number
For most people, there’s no need to know your permanent resident card number. It’s a number that U.S. Citizenship and Immigration Services (USCIS) used to track your case. If you’re curious to know what your number means, we’ll explain. Each of the 13 digits in a permanent resident card number has a specific purpose. Here’s how to read it:
CSC 17 011 32584
Service Center (CSC 17 011 32584)
Every receipt number begins with three letters that represent the service center that received the case. There are several codes for USCIS service centers. They include:
CSC – California Service Center
EAC – Eastern Adjudication Center (now known as Vermont Service Center)
IOE – ELIS (efile)
LIN – Lincoln Service Center (now known as Nebraska Service Center)
MSC – Missouri Service Center (now known as National Benefits Center)
NBC – National Benefits Center
NSC – Nebraska Service Center
SRC – Southern Regional Center (now known as Texas Service Center)
TSC – Texas Service Center
VSC – Vermont Service Center
WAC – Western Adjudication Center (now known as California Service Center)
YSC – Potomac Service Center
Fiscal Year (CSC 17 011 32584)
The second set of digits represent the fiscal year that the case was received. Government agencies use a fiscal year that is different from the calendar year. It begins on October 1 and ends on September 30. So our example case number was opened between October 2016 and September 2017.
Computer Workday (CSC 17 011 32584)
The third set of digits indicates the computer workday that the case was opened. The computer workday is basically the same thing as a workday. Therefore it excludes most weekends and holidays. Our example case was opened on the 11th workday of the 2017 fiscal year (October 11, 2016).
Case Number (CSC 17 011 32584)
The final set of five digits is the case number.
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