// Workers AI · dad joke modeWhat did IRSF say to its friend? You're a frequent filler.
IRSF is an acronym that may mean:
- Inland Revenue Staff Federation, a trade union in the United Kingdom
- The South African Astronomical Observatory's Infrared Survey Facility
- International Revenue Share Fraud, a type of phone fraud.
This disambiguation page lists articles associated with the title IRSF.
If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article.
If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article.