title: 543 (disambiguation)
text: # 543 (disambiguation)
  
  543 was a year.
  
  543 may also refer to:
  
  * 543 (number)
  * 543 BC
  * List of United States Supreme Court cases, volume 543
  * List of highways numbered 543
  * List of state leaders in 543
  * 543 Charlotte
  * Unit 543
  * Area code 543
  * The 5-4-3 rule for configuring Ethernet networks
  