AS1 (networking)

Autonomous System Number 1 on the Internet's BGP routing system. It was originally held by Bolt, Beranek and Newman, later known as BBN Planet. This was later GTE and later Genuity. It is currently held by Level 3 Communications, which now uses AS3356. [ [http://www.caida.org/research/topology/as_core_network/ Visualizing Internet Topology at a Macroscopic Scale] April 2005] [ [http://as-rank.caida.org/ AS ranking] ]

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