ASN Lookup – Networks, Upstreams and Prefixes

AS21508

ASN

ARIN

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS21508

NameCOMCAST-21508

OrganisationComcast Cable Communications, LLC

Country –

RIRARIN

Allocated16.05.2001

Network Overview

IPv4 Prefixes18

IPv6 Prefixes63

Upstreams IPv41

BGP Peers IPv448

Upstreams (Transit Providers)

IPv4

AS7922 COMCAST-7922

IPv4 Prefixes (18 total)

198.90.112.0/22

50.217.1.0/24

50.229.113.0/24

50.216.229.0/24

141.104.0.0/16

205.223.19.0/24

50.205.217.0/24

50.219.12.0/22

50.204.101.0/24

157.240.148.0/24

50.228.113.0/24

157.240.147.0/24

173.242.174.0/24

50.217.207.0/24

50.235.34.0/24

50.229.114.0/24

50.218.47.0/24

204.194.47.0/24

IPv6 Prefixes (63 total, showing 10)

2001:559:220::/48

2001:559:72b::/48

2001:559:c10a::/48

2001:559:c174::/48

2001:559:85ff::/48

2001:559:871a::/48

2001:559:3ac::/48

2001:559:8773::/48

2001:559:c0f7::/48

2001:559:3c8::/48

BGP Peers IPv4 (48 total, showing 20)

AS10794

AS11679

AS11739

AS13335

AS14583

AS15173

AS15297

AS17381

AS18773

AS19404

AS19923

AS2134

AS22274

AS23209

AS27326

AS27341

AS30299

AS32540

AS36040

AS36244

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.