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Set Up Overseas P.O. Box

When stationed overseas, DoD members are authorized a free U.S. Postal Service (USPS) mail box on base and they share it with their dependents.

To request a post office box complete the Mail Worksheet (download here) up to 90 days in advance and send it in with a copy of your orders.  Once you have digitally signed the form, hit the submit button and attach your supporting documents (Orders, Birth/Marriage Certificate) to the auto-generated email and send it.

E-mail: 100 PO Org Box ([email protected])

For assistance contact the Post Office

Commercial +44 (0)1638-54-7678
Option 1

DSN 238-7678
Option 1

[email protected]

Address Change

Submit a change of address before traveling to avoid delays with forwarding bills and mail.

If a post office box has not been set up yet, but you wish to forward mail within 30 days before arrival, please use the General Delivery box:

Your Name
Unit xxxx (Gaining organization unit number)
Gen Del
APO AE 09459-xxxx (unit number)

Upon Arrival

DoD members must go to the Post Office in person to retrieve combination to P.O. Box and to enroll in e-notifications for package deliveries using your preferred email for you and your spouse.

APO Mail Service

When using USPS on installation, sending mail or packages back home takes 10-14 days with priority or first class service.

When you receive a Post Office box, your new mailing information will be in the format shown below.

APO and Stateside Address
PSC 37 Box …..
APO AE 09459
(Do not add country name UK, Great Britain or England)

UK Address
PSC 37 Box …..
RAF Mildenhall
Bury St Edmunds
IP28 8NG

Hours of Operation

Parcel Pick Up
Monday - Friday
9 am - 5 pm
7 am - 5 pm
10 am - 1 pm

Finance/Mailing Out
Monday - Friday
9 am - 5 pm
10 am - 1 pm

Customer Service
Monday - Friday
9 am - 4 pm
Sat, Sun, Federal Holidays, Family & Goal Days

Hours may vary during holidays. Check the Hours section of the Post Office page or the 100 FSS Facebook Page for the most up-to-date information.