ASN Lookup – Networks, Upstreams and Prefixes

AS5972

ASN

ARIN

RIR

1440

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS5972

NameDNIC-ASBLK-05800-06055

OrganisationUnited States Department of Defense (DoD)

Country –

RIRARIN

Allocated24.10.1995

Network Overview

IPv4 Prefixes1440

IPv6 Prefixes0

Upstreams IPv43

BGP Peers IPv40

Upstreams (Transit Providers)

IPv4

AS27064 DNIC-ASBLK-27032-27159

AS27065 AS27065

AS27066 DNIC-ASBLK-27032-27159

IPv4 Prefixes (1440 total, showing 20)

138.138.242.0/23

139.38.248.0/22

214.2.65.0/24

214.76.216.0/21

198.250.128.0/19

139.38.120.0/22

138.137.90.0/23

139.38.146.0/23

138.136.194.0/23

164.250.224.0/20

144.146.243.0/24

139.38.40.0/22

164.248.0.0/14

214.1.71.0/24

214.76.122.0/23

139.39.200.0/22

214.81.248.0/23

214.1.240.0/24

204.208.10.0/23

214.59.56.0/24

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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.