ASN Lookup – Networks, Upstreams and Prefixes

AS26101

ASN

ARIN

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS26101

NameYAHOO-BF1

OrganisationYahoo Holdings Inc.

Country –

RIRARIN

Allocated05.07.2002

Network Overview

IPv4 Prefixes76

IPv6 Prefixes7

Upstreams IPv41

BGP Peers IPv40

Upstreams (Transit Providers)

IPv4

AS10310 YAHOO-1

IPv4 Prefixes (76 total, showing 20)

74.6.96.0/24

72.30.205.0/24

74.6.48.0/22

98.139.155.0/24

74.6.147.0/24

66.196.109.0/24

72.30.60.0/22

67.195.204.0/24

74.6.106.0/24

98.137.192.0/21

209.73.180.0/22

98.139.16.0/21

69.147.72.0/21

66.196.104.0/21

74.6.142.0/24

67.195.176.0/20

74.6.143.0/24

72.30.0.0/19

69.147.112.0/20

98.139.124.0/22

IPv6 Prefixes (7 total)

2001:4998:ef99::/48

2001:4998:58::/46

2001:4998:194::/46

2001:4998:124::/46

2001:4998:58::/48

2001:4998:194::/48

2001:4998:124::/48

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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.