School of Infantry (SOI) – East & West Mailing Address Guide

OOHRAH! Your Marine has completed graduation and is off to their next training location. Although they have successfully made it through boot camp, their journey as a Marine has just begun. The road that lies ahead is not an easy one, and your Marine will continue to need your support as they begin to focus and train for their career as a United States Marine.

You can use the Sandboxx app to continue sending Letters to your Marine while they are at the School of Infantry (SOI). Use the following mailing address formats below to update the address in the app to send Letters to the School of Infantry (SOI) – East & West: 

SOI EAST

 

MCT EAST – Mailing Address:
(RANK, LAST NAME, FIRST NAME, MI)
COMPANY________, CLASS__-__
MCT BN, SOI-E, MCB
PSC BOX 20161
CAMP LEJEUNE, NC 28542-0161

ITB EAST – Mailing Address:
(RANK, LAST NAME, FIRST NAME, MI)
COMPANY________, CLASS__-__
INFANTRY TRAINING BATTALION
SCHOOL OF INFANTRY-EAST
TRAINING COMMAND
PSC BOX 20161
CAMP LEJEUNE, NORTH CAROLINA 28542-0161

SOI WEST

MCT – WEST
Rank, Last Name, First Name, MI
Company__, Class__, Platoon__
MCT Bn, SOI
PSC Box 555091
Camp Pendleton, CA 92055-5091

ITB – WEST
Rank, Last Name, First Name, MI
Company__, Class__, Platoon__
ITB, SOI
PSC Box 555081
Camp Pendleton, CA 92055-5081

Unsure of what company and class your Marine is in? Use our School of Infantry (SOI) Company and Class Reference Guide to fill out their mailing address or email us at support@sandboxx.us and we would be happy to help! The School of Infantry will continue to push Marines mentally and physically, learn more about what happens after Marine boot camp.

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Author: Nicole at Sandboxx

The daughter of a United States Marine, I grew up with a passion and love for our troops, which led me to pursue a career in a field where I could give back to the military community. In my free time you can find me spending time with my significant other who is currently an Officer in the Marine Corps.

9 thoughts

  1. How do I find out my son’s platoon number. I know he’s golf company, class 8-18 but not sure his platoon? He was 2143 at boot camp.

  2. My son called after arriving MCT West. He said the PSC Box was 555019. Your page says it’s 555091. Can you confirm which is correct?

    1. Good afternoon, Lori. We get our addresses off the Official Marine Corps Website which shows this as the PO Box:
      Rank, Last Name, First Name, MI
      Company__, Class__, Platoon__
      MCT Bn, SOI
      PSC Box 555091
      Camp Pendleton, CA 92055-5091

      We hope this helps. Thank you for using SANDBOXX.

    1. Good morning, Simone. The SOI Company and Class-Number don’t have any relation to the Platoon number they were in at boot camp. If you have any further questions please reach out to our customer support team at support@sandboxx.us. Thank you for using Sandboxx.

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