ASN Lookup – Networks, Upstreams and Prefixes

AS21547

ASN

ARIN

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS21547

NameFLASN-21547

OrganisationFirstLight Networks, LLC

Country –

RIRARIN

Allocated21.05.2001

Network Overview

IPv4 Prefixes68

IPv6 Prefixes5

Upstreams IPv41

BGP Peers IPv44

Upstreams (Transit Providers)

IPv4

AS13536 FLASN-13536

IPv4 Prefixes (68 total, showing 20)

204.249.238.0/23

206.106.132.0/22

69.49.148.0/24

69.49.133.0/24

198.212.230.0/24

72.12.92.0/24

66.186.173.0/24

66.231.192.0/24

208.17.26.0/23

66.186.171.0/24

66.186.162.0/24

72.12.75.0/24

64.140.224.0/19

69.49.144.0/24

66.231.207.0/24

66.186.160.0/19

66.186.176.0/24

74.220.236.0/24

204.97.16.0/21

72.12.64.0/19

IPv6 Prefixes (5 total)

2001:4940:2007::/48

2001:4940::/32

2604:3f00::/32

2001:4940:2001::/48

2001:4940:2006::/48

BGP Peers IPv4 (4 total)

AS36501

AS36787

AS36823

AS395342

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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.