13 Digit Alpha-Numeric, H-1B Petition I-129 Receipt / Case / Reference Number

 

Format: {FIRST PART}-{SECOND PART}-{THIRD PART}-{FOURTH PART}

Example: EAC-12-209-52348

• FIRST PART
  • Indicates the USCIS Service Center where H-1B petition was filed
    • EAC – Vermont Service Center (old name: Eastern Adjudication Center).
    • LIN – Nebraska Service Center (LIN refers to Lincoln, Nebraska).
    • SRC – Texas Service Center (old name: Southern Regional Center).
    • WAC – California Service Center (old name: Western Adjudication Center).
• SECOND PART
  • Last two digits of the Year in which H-1B petition was filed.
• THIRD PART
  • Working Day (i.e. excluding weekend & holidays) starting from October 1st of the year of filing
• FOURTH PART
  • Indicates the Case Number that was assigned to your H-1B petition.