| U+ | art-254 |
| 2415 | |
| Unicode Character Names | art-315 | GRAPHIC FOR NEGATIVE ACKNOWLEDGE |
| Unicode Character Names | art-315 | SYMBOL FOR NEGATIVE ACKNOWLEDGE |
| American English | eng-004 | SYMBOL FOR NEGATIVE ACKNOWLEDGE |
| français | fra-000 | SYMBOLE D’ACCUSÉ DE RÉCEPTION NÉGATIF |