List of Boeing customer codes

Unique, fixed customer codes were used by Boeing Commercial Airplanes to denote the original customer for airframes produced as part of Boeing's 7x7 family of commercial aircraft from 1956 (except for the Boeing 787 Dreamliner), with the introduction of the 707, up until 2016.

The codes are in the form of two letters and/or numbers which are appended to the aircraft's model designator, as seen in the following examples:

• The Boeing 727-100 and 727-200 ordered by United Airlines with customer code 22 are designated as 727-22 (not -122) and 727-222 respectively.
• A Boeing 737-800 ordered by Southwest Airlines with customer code H4 would be designated as Boeing 737-8H4.
• A Boeing 747-400 ordered by Korean Air with customer code B5 would be designated as Boeing 747-4B5.
• A Boeing 747SP ordered by Qantas with customer code 38 would be designated as Boeing 747SP-38.
• A Boeing 747SR ordered by Japan Airlines with customer code 46 would be designated as Boeing 747SR-46, rather than 747-146(SR).
• A Boeing 767-300ER ordered by EVA Air with customer code 5E would be designated as Boeing 767-35E(ER).
• A Boeing 777F ordered by GECAS with customer code 6N would be designated as Boeing 777-F6N.
• A Boeing 777-300ER ordered by Cathay Pacific with customer code 67 would be designated as Boeing 777-367(ER).
• A Boeing 747-400 or a Boeing 777-300ER ordered by Philippine Airlines with customer code F6 would be designated as Boeing 747-4F6 or Boeing 777-3F6(ER).

The codes do not change if the aircraft is subsequently sold, such as if a passenger aircraft is converted into a freighter or other purposes. For example, a Boeing Dreamlifter that was originally built as a 747-400 passenger aircraft for China Airlines with customer code 09 would be designated as 747-409(LCF). Although in some cases if an airline cancelled or sold their order before Boeing had delivered the airframe the customer code would be changed to that of the new purchaser. One such example is the order for sixteen 737-800s taken over by Qantas from American Airlines after the September 11 attacks in 2001 - these aircraft were delivered with Qantas' 38 code rather than 23 for American.

Before the 707, Boeing used a generally similar system to identify the presence of detailed variations or options requested by particular customers, but the codes were not customer-specific.

In 2016, Boeing announced that they would no longer apply customer codes to any aircraft produced after a certain point, which would lead to their designators being the "generic" type for the model. The codes were removed from the type certificates for each model with effect from the production line number shown below:

• Boeing 737 Next Generation: line number 6082
• Boeing P-8 Poseidon: line number 6020
• Boeing 747-8: line number 1534
• Boeing 767: line number 1102
• Boeing 777: line number 1422

Further, customer codes have never been used for the 787 and 737 MAX, and will not be applied to the 777X either.

List[]

Boeing generally allocated new codes in sequence, with the exception of 01 to 19 being issued after 21 to 99. Code number 20 itself came to be reserved for Boeing's own use, though this was only ever formally the case for the 707.

• 21 to 99 - First Sequence
• 01 to 19 - Second Sequence
• A0 to Z9 - Third Sequence
• 0A to 9Z - Fourth Sequence
• AA to ZZ - Fifth and final sequence

Airlines in italics are defunct.

Please note that the list of aircraft types for each airline is only those produced with that of the airline's code, and is not intended to reflect their complete operational history for Boeing aircraft.

First sequence[]

Second sequence[]

Third sequence[]

Fourth sequence[]

Fifth and final sequence[]

References[]

Bibliography[]

• Pither, Tony (1998). The Boeing 707, 720 and C-135. England: Air-Britain (Historians) Ltd. ISBN 0-85130-236-X.