ASF

et cetera, and so on, continuing in the same manner

ASF can stand for: In computing:Advanced Systems Format (formerly "Advanced Streaming Format", .asf), a Microsoft streaming format associated with Windows Media Player.Apache Software Foundation, the umbrella non-profit organization that technically 'owns' the Apache brandname, and protects and promotes its projects.
See more at Wikipedia.org...

Advanced Systems Format (formerly Advanced Streaming Format, Active Streaming Format) is Microsoft's proprietary digital audio/digital video container format, especially meant for streaming media. ASF is part of the Windows Media framework.The format does not specify how (i.e. with which codec) the video or audio should be encoded; it just specifies the structure of the video/audio stream. This is similar to the function performed by the QuickTime, AVI, or Ogg container formats. One of the objectives of ASF was to support playback from digital media servers, HTTP servers, and local storage devices such as hard disk drives.
See more at Wikipedia.org...

Algebraic Specification Language

Airport Name: Narimanovo Airport
Airport Location: Astrakhan, Russia
IATA Code: ASF
ICAO Code: URWA
  

(See AIRPORT STREAM FILTER.)