Within the US, the ARRL DX QSL Bureau System is made up of numerous call-area bureaus. They act as central clearing houses for QSL cards arriving from foreign countries. Volunteers staff these "incoming" bureaus. The service is free.  ARRL membership is not required.

Canadian amateurs can use the Radio Amateurs of Canada's incoming QSL bureau.

Most countries have "outgoing" QSL bureaus that operate in much the same manner as the ARRL Outgoing QSL Service. The members send their cards to their outgoing bureau, where they are packaged and shipped to the appropriate countries.

A majority of the DX QSL cards are shipped directly to the individual incoming bureaus where volunteers sort the incoming QSLs by the first letter of the call sign suffix. One individual may be assigned the responsibility of handling one or more letters of the alphabet.

All incoming QSL Bureaus have e-mail addresses and Web pages.  The information for specific Bureaus is listed below.

You can claim your QSLs by sending a 5" x 7-1/2" or 6" x 9" self-addressed, stamped envelope (SASE) or money credit to the bureau serving your call sign area. Neatly print your call sign in the upper left corner of the envelope. Place your mailing address on the front of the envelope. A suggested way to send envelopes is to affix a first class stamp and clip extra postage to the envelope. Then, if you receive more than 1 ounce of cards, they can be sent in a single package.

Some incoming bureaus sell envelopes or postage credits in addition to the normal SASE handling. They provide the proper envelope and postage upon the prepayment of a certain fee. The exact arrangements can be obtained by sending your inquiry with a SASE to your area bureau. (A list of bureaus appears below.)

Good cooperation between the DXer and the bureau is important to ensure a smooth flow of cards. Remember that the people who work in the area bureaus are volunteers. They are providing you with a valuable service. To obtain the best results, please pay close attention to the following dos and don'ts.

Dos

• Do keep self-addressed 5 x 7-1/2 or 6 x 9 inch envelopes or money credit on file at your bureau, with your call sign in the upper left corner, and affix at least one unit of first-class postage.
• Do send the bureau enough postage to cover SASEs on file and enough to take care of possible postage rate increases.
• Do respond quickly to any bureau request for SASEs, stamps or money. Unclaimed card backlogs are the bureau's biggest problem.
• Do notify the bureau of your new call sign as you upgrade. Please send SASEs with your new call, in addition to SASEs with your old call.
• Do include your call sign on any correspondence with the bureau. 
• Do include a SASE with any information request to the bureau.
• Do notify the bureau in writing if you don't want your cards.
• Do notify the Bureau of a change of address.

Don'ts

• Don't send domestic US to US cards to the various call area bureaus.
• Don't expect DX cards to arrive for several months after the QSO. Overseas delivery is very slow. Many cards coming from overseas bureaus are over a year old.
• Don't send your outgoing DX cards to your call area bureau. 
• Don't send SASEs to your "portable" bureau. For example, NU0X/1 sends SASEs to the W0 bureau, not the W1 bureau.
• Don't send SASEs or money credits to the ARRL Outgoing QSL Service.
• Don't send SASEs larger than 6 x 9 inches. SASEs larger than 6 x 9 inches require additional postage surcharges.

For a PDF file of all of the information above, click the Learn More link below.

 
Learn More

All first-area call signs:

W1 QSL Bureau
YCCC
PO Box 73
Marlborough, MA 01752-0073

This bureau accepts money credits only. NO SASEs. For specific information on the W1 incoming bureau, please contact w1qsl@w1qsl.org. This address can also be used to send comments or general questions to the W1 QSL Bureau Manager.
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All second-area call signs:

ARRL 2nd District QSL Bureau
NJDXA
PO Box 18, Morris Plains, NJ 07950

This bureau accepts money credits only. NO SASEs. For detailed information on the W2 Incoming QSL Bureau, please contact John Stockman, KC2THY, Bureau Manager, at:  jcs1@msn.com  Additionally, the W2 Bureau has its own home page that contains a world of QSL Bureau information.
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All third-area call signs:

 W3 Incoming QSL Bureau

National Capitol DX Association
NCDXA
PO Box 190, Glenelg, MD 21737-0190

Comments or questions on this bureau's operation may be directed to w3kx@arrl.net
For more information see the W3 Incoming QSL Bureau web page.
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The W4 call area incoming bureau is no longer divided into TWO SECTIONS. 
 

Comments or questions on this bureau's operation may be directed to gormil@aol.com

Sterling Park Amateur Radio Club
Call Box 599
Sterling, VA 20167
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Comments or questions on this bureau's operation may be directed to gormil@aol.com.

All fifth-area call signs:

The ARRL W5 QSL Bureau

The W5 Incoming Bureau accepts money credits only. NO SASE's. The new fee is $1 per envelope. Funds may be sent via check to:

W5 Incoming Bureau
P.O. Box 532
Broken Arrow, OK 74013

Or SASE purchases can be made using the PayPal feature on the website:
www.w5incomingbureau.net

Bureau procedures are outlined and you can also search your callsign to see what your sorter has on file for you. 

All sixth area call signs:

ARRL Sixth (6th) District DX QSL Bureau

6th District Incoming QSL Bureau

P.O. Box 7488

Stockton, CA 95267-0488

Questions can be directed to:  6thdistrictqslmanager@gmail.com 
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All seventh-area call signs:

Willamette Valley DX Club Inc
7th District QSL Bureau

P.O. Box 1288

Battle Ground, WA 98604-1288

Comments or questions on this bureau's operation may be directed to 7thareaqslbureau@gmail.com

See the W7 Bureau home page.
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All eighth-area call signs:

8th Area QSL Bureau
PO Box 307
West Chester, OH 45071-0307

Comments or questions on this bureaus operation may be directed to: n8dx@arrl.net

See the 8th Area QSL Bureau home page for contact information.  https://arrl-greatlakes.org/8th_bureau.html
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All ninth-area call signs:

Northern Illinois DX Assn.

P.O. Box 125

Naperville, IL 60566

Comments or questions on this bureaus operation may be directed to: k9eu@att.net.

See the W9 QSL Bureau homepage.

 
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WØ QSL Bureau
PO Box 907
Florissant, MO 63032

Comments or questions on this Bureau's operation may be directed to JCYodis@aol.com
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All Hawaiian call signs:

KH6 QSL Bureau
c/o Edward K. ("Ned") Conklin, KH7JJ
2969 Kalakaua Avenue
# 1004
Honolulu, Hawaii 96815

Comments or questions on this bureau's operation may be directed to kh7jj@arrl.net.

All Alaskan call signs:

Alaska QSL Bureau
P.O. Box 520343
Big Lake, AK 99652

Comments or questions on this bureaus operation may be directed to trygve@mtaonline.net

All Puerto Rico call signs:

Puerto Rico QSL Bureau
PO Box 9021061
San Juan, PR 00902-1061

Comments or questions on this bureaus operation my be directed to kp4wi@arrl.net

All USVI call signs:

V.I. QSL Bureau

Virgin Islands QSL Bureau  
P.O. Box 25782  
Christiansted, St. Croix  
U.S. Virgin Islands 00824

  
Comments or questions on this bureau's operation may be directed to k9vv@arrl.org

All Guam Calls

Guam QSL Bureau
Marianas Amateur Radio Club
P.O. Box 445
Agana, Guam 96932

Comments or questions regarding this Bureau may be directed to Danny Pobre, KH2JU, Pobre@guam.net.

SWL QSL Bureau

To be determined