| 2007 NAICS | 2012 NAICS | 2017 NAICS | Corresponding Index Entries | |||
| 454112 | 454112 | 454110 | Auctions, Internet retail | |||
| 454111 | 454111 | 454110 | Audio and video content downloading retail sales sites | |||
| 454113 | 454113 | 454110 | Book clubs, not publishing, mail-order | |||
| 454111 | 454111 | 454110 | Business to Consumer retail sales Internet sites | |||
| 454113 | 454113 | 454110 | Catalog (i.e., order-taking) offices of mail-order houses | |||
| 454113 | 454113 | 454110 | Collectors' items, mail-order houses | |||
| 454113 | 454113 | 454110 | Computer software, mail-order houses | |||
| 454113 | 454113 | 454110 | Direct mailers (i.e., selling own merchandise) | |||
| 454111 | 454111 | 454110 | E-tailers | |||
| 454112 | 454112 | 454110 | Electronic auctions, retail | |||
| 454111 | 454111 | 454110 | Institutional pharmacies, off-site, exclusively on Internet | |||
| 454113 | 454113 | 454110 | Institutional pharmacies, off-site, mail-order | |||
| 454112 | 454112 | 454110 | Internet auctions, retail | |||
| 454111 | 454111 | 454110 | Internet retail sales sites | |||
| 454113 | 454113 | 454110 | Mail-order houses | |||
| 454113 | 454113 | 454110 | Order-taking offices of mail-order houses | |||
| 454113 | 454113 | 454110 | Prerecorded tape, compact disc, and record mail-order houses | |||
| 454113 | 454113 | 454110 | Television order, home shopping | |||
| 454111 | 454111 | 454110 | Web retailers |