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in: Internet, Definition

Autonomous System Number

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Definitions[]

An Autonomous System Number (ASN) is

“ [a] unique 16 bit number assigned by the InterNIC that refers to a particular collection of networks under a common administration and sharing a common routing strategy.[1] ”
“ identifies the autonomous system — networks using the same, specified routing policy — and enables the autonomous system to exchange information with other autonomous systems.[2] ”

Overview[]

Autonomous System Numbers are used by various routing protocols. AS numbers are assigned to the Regional Internet Registries by the IANA.

References[]

  1. ↑ DR3300-1-I, at 10.
  2. ↑ Privacy Impact Assessment EINSTEIN Program: Collecting, Analyzing, and Sharing Computer Security Information Across the Federal Civilian Government, at 7.
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