ASN Lookup – Networks, Upstreams and Prefixes

AS56

ASN

ARIN

RIR

959

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS56

NameDNIC-AS-00056

OrganisationUnited States Department of Defense (DoD)

Country –

RIRARIN

Allocated18.12.1985

Network Overview

IPv4 Prefixes959

IPv6 Prefixes0

Upstreams IPv42

BGP Peers IPv40

Upstreams (Transit Providers)

IPv4

AS27064 DNIC-ASBLK-27032-27159

AS27065 DNIC-ASBLK-27032-27159

IPv4 Prefixes (959 total, showing 20)

131.60.200.0/23

131.43.232.0/24

132.39.32.0/20

131.62.30.0/24

131.6.196.0/24

132.1.0.0/16

131.53.120.0/24

131.7.0.0/16

137.14.235.0/24

132.57.144.0/20

131.18.98.0/23

207.133.190.0/24

131.62.202.0/24

132.2.112.0/20

137.4.120.0/24

207.133.174.0/24

137.9.121.0/24

132.50.95.0/24

132.50.26.0/23

137.14.250.0/23

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What is an ASN?

An Autonomous System Number (ASN) is a unique number assigned to a network on the internet. Upstreams are the transit providers through which the AS reaches the internet. Peers are networks with which direct traffic exchange takes place. Prefixes are the IP address ranges that the AS announces to the internet. Data via RIPE NCC RDAP and RIPEstat API.