ASN Lookup – Networks, Upstreams and Prefixes

AS209

ASN

ARIN

RIR

1620

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS209

NameCENTURYLINK-US-LEGACY-QWEST

OrganisationCenturyLink Communications, LLC

Country –

RIRARIN

Allocated13.11.1998

Network Overview

IPv4 Prefixes1620

IPv6 Prefixes32

Upstreams IPv41

BGP Peers IPv4325

Upstreams (Transit Providers)

IPv4

AS3356 LEVEL3

IPv4 Prefixes (1620 total, showing 20)

63.226.143.0/24

65.101.72.0/21

63.230.250.0/24

137.107.65.0/24

63.226.92.0/23

168.103.56.0/21

66.242.224.0/19

75.171.85.0/24

66.243.192.0/21

63.225.37.0/24

75.160.96.0/20

71.32.216.0/22

75.172.0.0/16

63.224.89.0/24

65.102.68.0/22

76.1.204.0/23

67.41.64.0/21

63.230.68.0/22

67.232.192.0/20

206.25.139.0/24

IPv6 Prefixes (32 total, showing 10)

2606:5000:3600::/39

2606:5000:4000::/39

2620:13d:2060::/46

2606:5000:4400::/39

2606:5000:4c00::/39

2606:5000::/39

2606:5000:2600::/39

2606:5000:5a00::/39

2606:5000:3a00::/39

2602::/24

BGP Peers IPv4 (325 total, showing 20)

AS10361

AS10370

AS10599

AS10655

AS10695

AS10780

AS10966

AS11255

AS11275

AS11651

AS11690

AS11710

AS11842

AS11857

AS11985

AS12086

AS12113

AS12156

AS12225

AS12238

My IP ASN Lookup IP Lookup WHOIS DNS Lookup

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.