ASN Lookup – Networks, Upstreams and Prefixes

AS7018

ASN

ARIN

RIR

623

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS7018

NameATT-INTERNET4

OrganisationAT&T Enterprises, LLC

Country –

RIRARIN

Allocated30.07.1996

Network Overview

IPv4 Prefixes623

IPv6 Prefixes15

Upstreams IPv410

BGP Peers IPv44425

Upstreams (Transit Providers)

IPv4

AS12956 TELXIUS

AS1299 TWELVE99

AS174 COGENT-174

AS2497 IIJ

AS286 KPN

AS2914 NTT-DATA-2914

AS3257 GTT-BACKBONE

AS3320 DTAG

AS3356 LEVEL3

AS3491 PCCWG-APAC-HK

IPv4 Prefixes (623 total, showing 20)

99.128.0.0/13

151.164.0.0/16

192.203.127.0/24

204.238.109.0/24

199.70.0.0/16

72.14.78.0/24

198.89.32.0/24

170.187.1.0/24

70.241.0.0/16

32.70.0.0/22

99.11.0.0/16

158.107.104.0/22

71.141.192.0/18

192.205.31.0/24

107.225.36.0/23

72.157.18.0/24

107.225.48.0/22

205.173.119.0/24

207.252.0.0/16

76.239.0.0/16

IPv6 Prefixes (15 total, showing 10)

2001:1890::/29

2600:1700::/28

2620:b1:8000::/48

2620:27:f::/48

2620:0:f40::/48

2602:300::/24

2620:98:6000::/48

2620:a5:2000::/48

2620:ca:e000::/48

2620:59:a000::/48

BGP Peers IPv4 (4425 total, showing 20)

AS1021

AS10257

AS10273

AS10308

AS10309

AS1035

AS10353

AS10360

AS10361

AS10372

AS10379

AS10392

AS1041

AS10411

AS10421

AS10425

AS10439

AS10499

AS10584

AS10599

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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.