Frequently Asked Questions

Letters and Address Cards

Learn more about Letters and the Address Cards, which help service members update their kin with their basic training address.




What to Write in Your Letter

By all means, tell them that you miss them!

Dear Husband,

I'm sitting on the back patio right now, enjoying a cup of coffee. The winds blowing just softly enough for me to listen to it, but not so hard that it's blowing my pages around. Our silly cat is over by the bird bath chasing a butterfly, haha.

I really miss you a lot! I can't even explain how much! Etc etc

Love Wife

Then tell them something else, you're going to be doing a lot of writing over the next few weeks, and the communication you share may well be the only communication your soldier receives, so tell them that you miss them, every single solitary day. Seriously, the price of a post card stamp isn't enough to keep you from heading to the blue box on the daily. Then for just a second, bring them home. Wait what?! Bring them home?! Let me tell you how in a letter you can take your loved one out of Fort Jackson, for just a little while, and bring him or her home.

Source: Fort Jackson Basic Training


Where are the Bootcamp and Basic Training locations?


What are the correct address formats for Bootcamp and Basic Training?



Fort Jackson, SC

ADDRESS FORMAT

PVT Last Name, First Name
# PLT (Company) Co X/XXth INF REGT
##### Jackson Blvd
Fort Jackson, SC 29207-####

SAMPLE ADDRESS

PVT Doe, Jane R.
1st PLT B Co 2/10th INF REGT
10006 Jackson BLVD
Fort Jackson, SC 29207-6100

Fort Benning, GA

ADDRESS FORMAT

Rank(PVT, PV2, PFC, SPC) Last name, First name
Roster Number X Co., X-XX Inf. Regt.
Street address
Fort Benning, GA 31905-####

SAMPLE ADDRESS

PVT Doe, Jane R.
1st PLT B Co 2-10th Inf. Regt.
9000 Kinsman Drive
Fort Benning, GA 31905-5919

Fort Knox, KY

ADDRESS FORMAT

Rank(PVT, PV2, PFC, SPC) Last name, First name
# PLT (Company) Co X/XXth INF REGT
## Rhineland Street
Fort Knox, KY 40121-####

SAMPLE ADDRESS

PVT Doe, Jane R.
1st PLT B Co 2/10th INF REGT
24 Rhineland Street
Fort Knox, KY 40121-5117

Fort Leonard Wood, MO

ADDRESS FORMAT

Rank Last name, First name
X Company, 1/## IN BN Platoon (#)
495 Iowa Avenue, Unit #
Fort Leonard Wood, MO 65473-####

SAMPLE ADDRESS

PVT Doe, Jane
A Company, 1/48TH IN BN Platoon 1008
495 Iowa Avenue, Unit 13
Fort Leonard Wood, MO 65473-8958

Fort Sill, OK

ADDRESS FORMAT

Rank, Last Name, First Name
X Battery, 1-X FA Battalion # PLT
#### Street Address
Fort Sill, OK 73503-####

SAMPLE ADDRESS

PVT Doe, Jane R.
B Battery, 1-79 FA Battalion, 4th PLT
9000 Rothwell Street
Fort Sill, OK 73503-3224


Great Lakes, IL

ADDRESS FORMAT

SR Last Name, First Name, Middle Initial
Ship ### Div ###
#### Street/Drive
Great Lakes, IL 60088-XXXX

SAMPLE ADDRESS

SR Doe, John R
Ship 7 Div 341
3405 Sailor Drive
Great Lakes, IL 60088-3401

Newport, RI

ADDRESS FORMAT

OC Last Name, First Name, Middle Initial
Officer Candidate School Class XX-XX
OFFICER TRAINING COMMAND NEWPORT
1356 Meyerkord Avenue
Newport, RI 02841-1641

SAMPLE ADDRESS

OC Doe, John R
Officer Candidate School Class 04-23
OFFICER TRAINING COMMAND NEWPORT
1356 Meyerkord Avenue
Newport, RI 02841-1641


Lackland, TX

ADDRESS FORMAT

AB Last Name, First Name, Middle Initial
### TRS / FLT ### (Dorm #X-#) or (Dorm X-#)
1320 Truemper Street Unit 36####
JBSA Lackland AFB, TX 78236-####

SAMPLE ADDRESS

AB Doe, John R
326 TRS/FLT 620 (Dorm B3)
1320 Truemper Street Unit 361006
JBSA Lackland AFB, TX 78236-5570


San Diego, CA

ADDRESS FORMAT

RECRUIT First Name, Last Name
#(st, nd, rd) BN "Company" Platoon ####
##### Midway Avenue
San Diego CA 92140-####

SAMPLE ADDRESS

RECRUIT John Doe
1st BN Alpha Company Platoon 1000
38001 Midway Avenue
San Diego, CA. 92140-5670

Parris Island, SC

ADDRESS FORMAT

RECRUIT First Name, Last Name
#(st, nd, rd) BN "Company Name" Platoon ####
PO Box #####
Parris Island, SC 29905-####

SAMPLE ADDRESS

RECRUIT John Doe
1st BN Alpha Company Platoon 1000
PO Box 16945
Parris Island, SC 29905-6945

Camp Lejuene, NC

ADDRESS FORMAT

RANK First Name Last Name
"Company Name", Class #-##
MCT BN, SOI-E, MCB, PSC BOX 20161
Camp Lejuene NC 28542-####

SAMPLE ADDRESS

RECRUIT John Doe
Company Kilo, Class 6-17
MCT BN, SOI-E, MCB, PSC BOX 20161
Camp Lejuene NC 28542-0161


Cape May, NJ

ADDRESS FORMAT

SR (Last Name, First Initial)
Company # X Hall (James, Healy, or Munro)
1 Munro Avenue
USCG TRACEN
Cape May, NJ 08204

SAMPLE ADDRESS

AB Doe, J
Alpha 123 James Hall
1 Munro Avenue
USCG TRACEN
Cape May, NJ 08204

What is an APO/FPO/DPO address?

The concept of getting mail overseas to and from military personnel stationed overseas dates back many years. In formalizing this activity, the U.S. Postal Service (USPS) and the Department of Defense (DoD) negotiated an agreement called Overseas Military Mail, which exists to this day. In this agreement addressing schemes, delivery mechanisms and nomenclature were hammered out. Here is how Overseas Military Mail really works.

Three Military "States":
AA, which stands for Armed Forces (the) Americas
AE, which stands for Armed Forces Europe
AP, which stands for Armed Forces Pacific

Three "City" equivalents:
APO, which stands for Army Post Office
FPO, which stands for Fleet Post Office
DPO, which stands for Diplomatic Post Office

Sample Addresses

CPT JOHN DOE
UNIT 2050 BOX 4190
APO AP 96278

SGT ROBERT SMITH
PSC 802 BOX 74
DPO AE 09499

SEAMAN JOSEPH SMITH
USCGC HAMILTON
FPO AA 09499

What about OPSEC?

OPSEC and privacy were in part the impetus for the creation of Sandboxx. Our security stack reflect todays' best practices for object authentication and restless protocol layers. If you would like to learn more about our back end technology, please reach out.

On the user end, Sandboxx provides social authentication for all connections. We do not share private information on user app profiles or on the web. OPSEC is most effective as common practice from our members. All Sandboxx users are responsible for the content they post and share. Sandboxx is not a DOD operational platform, although we recognize the lifestyle of our members often incorporates the regular tempo of today's digital warriors.


Where are the Letters being printed and how are they delivered?

The Sandboxx team creates each Letter in our office from the moment you hit send to the moment the post office takes custody. We built an enterprise fulfillment practice to ensure each Letter is handled with care and privacy. We deploy Letters daily from our headquarters protecting the address of the senders.


Do you have to pay for Letters?

The app is free to download. The cost of one letter is $3 to the sender. This pays for the stamp, the paper, return envelope, and printing process. Bundle options allow the prices below $2 per letter.