WoT
International Standard Industrial Classification of All Economic Activities, Rev.4 - Global (UN)

51 Air transport

ISIC Rev 4 classification code 51 covers "Air transport" at level 1 of the ISIC Rev 4 hierarchy.

Level 12 direct subcategories122 cross-system mappings
Is your business really a 51?Classify it

Where 51 sits in the ISIC Rev 4 hierarchy

  1. >H Transportation and storage
  2. >51 Air transport
  3. >51 Air transport

51 in other classification systems

Equivalent and related codes across 122 other systems. Click any code to see its full definition, hierarchy, and crosswalks.

Subcategories of 51 Air transport

Other ISIC Rev 4 codes under 51 Air transport

Frequently asked questions

What is ISIC Rev 4 51?
ISIC Rev 4 51 is "Air transport". ISIC Rev 4 code 51 covers "Air transport" at level 1 of the ISIC Rev 4 hierarchy.
What does ISIC Rev 4 51 include?
51 Air transport contains 2 direct subcategories: 511 Passenger air transport; 512 Freight air transport.
How does ISIC Rev 4 51 map to other classification systems?
51 Air transport has equivalents in BSIC (51); CAEB (51); CLANAE Rev 4 (Argentina) (51); CIIU Rev 4 (Chile) (51). These crosswalks let you translate this code between ISIC Rev 4 and 122 other classification systems.
What is the parent category of 51?
51 Air transport sits under 51 Air transport in the ISIC Rev 4 hierarchy.

Classify my business

Describe your business in plain English and get matching codes across ISIC Rev 4 and other major systems.

Interactive browser

Open 51 in the full interactive explorer with tree view, search, and drill-downs.