ASN Lookup – Networks, Upstreams and Prefixes

AS109

ASN

ARIN

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS109

NameCISCOSYSTEMS

OrganisationCISCO SYSTEMS, INC.

Country –

RIRARIN

Allocated06.05.1987

Network Overview

IPv4 Prefixes93

IPv6 Prefixes43

Upstreams IPv410

BGP Peers IPv40

Upstreams (Transit Providers)

IPv4

AS1221 ASN-TELSTRA

AS1299 TWELVE99

AS1680 NV-ASN

AS17621 CNCGROUP-SH

AS2764 AAPT

AS3356 LEVEL3

AS3491 PCCWG-APAC-HK

AS4637 ASN-TELSTRA-GLOBAL

AS4657 STARHUB-INTERNET

AS4755 TATACOMM-AS

IPv4 Prefixes (93 total, showing 20)

64.103.96.0/20

204.69.200.0/24

192.133.192.0/19

128.107.6.0/23

173.37.128.0/19

72.163.64.0/20

173.36.0.0/17

173.39.0.0/18

64.104.192.0/18

173.39.128.0/19

64.101.224.0/19

72.163.0.0/18

111.223.8.0/22

64.100.0.0/16

72.163.80.0/20

173.39.192.0/20

66.187.208.0/20

161.44.0.0/16

192.118.76.0/22

128.107.0.0/16

IPv6 Prefixes (43 total, showing 10)

2001:420:2000::/35

2001:420:1180::/41

2001:420:5600::/39

2001:420:c0c4::/46

2001:420:c0d4::/46

2001:420:91::/48

2001:420:93::/48

2001:420:5000::/39

2001:420:5c00::/39

2001:420:c0ec::/46

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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.