ASN Lookup – Networks, Upstreams and Prefixes

AS27321

ASN

ARIN

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS27321

NameISC-F-AS

OrganisationInternet Systems Consortium, Inc.

Country –

RIRARIN

Allocated12.02.2003

Network Overview

IPv4 Prefixes7

IPv6 Prefixes1

Upstreams IPv45

BGP Peers IPv43

Upstreams (Transit Providers)

IPv4

AS10111 ZEONET-AS-AP

AS398447 OHANACRAFT

AS58057 SECUREBIT

AS6461 ZAYO-6461

AS6939 HURRICANE

IPv4 Prefixes (7 total)

192.158.249.0/24

192.158.248.0/24

149.20.57.0/24

149.20.2.0/24

149.20.4.0/24

149.20.3.0/24

149.20.66.0/24

IPv6 Prefixes (1 total)

2001:500:6b::/48

BGP Peers IPv4 (3 total)

AS3557

AS36236

AS49544

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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.