What does 400 stand for?

The list of 400 abbreviation meanings.

Stands For|2Abbreviated As|0Related|0

2 entries under topic. ×

1
Service Access Code(Area Code, North America, Phone area code)
For more, try 400 on ALL ACRONYMS DICTIONARY
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APASmart Define. (2017). 400. Retrieved September 21, 2026, from http://smartdefine.org/400/abbreviations/f/Area_Code
ChicagoSmart Define. 2017. "400" http://smartdefine.org/400/abbreviations/f/Area_Code (accessed September 21, 2026).
HarvardSmart Define 2017, 400, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/400/abbreviations/f/Area_Code>.
MLASmart Define. "400" 30 October 2017. Web. 21 September 2026. <http://smartdefine.org/400/abbreviations/f/Area_Code>