An Autonomous System Number (ASN) is a unique number assigned to a network in global internet routing. Every provider that participates directly on the internet has its own ASN (e.g. AS15169 for Google).

What are upstreams, peers and prefixes?

Upstreams are transit providers through which an AS reaches the internet. Peers are networks with direct traffic exchange. Prefixes are the IP address ranges the AS announces via BGP.

Where does the ASN data come from?

The data comes from the official RDAP services of the RIRs (RIPE, ARIN, etc.) and from RIPEstat (prefixes and neighbour ASNs).

ASN Lookup – Networks, Upstreams and Prefixes

AS23481

ASN

ARIN

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS23481

NameHCTC-LINK1

OrganisationHill Country Telephone Cooperative, Inc.

Country –

RIRARIN

Allocated26.03.2002

Network Overview

IPv4 Prefixes25

IPv6 Prefixes0

Upstreams (Transit)9

Downstreams (Customers)2

BGP Peers4

AS Path (BGP neighbours)

Upstreams (Transit)

AS1299Arelion (fka. Telia Carrier)AS137409GSL Networks Pty LTD AS174Cogent Communications, LLC AS25091IP-Max SA AS32097WholeSale Internet, Inc.AS4230Claro (Embratel)+3

AS23481HCTC-LINK1

Downstreams (Customers)

AS13392Region 18 Education Service Center AS19819Brady Communications, LLC

Upstreams (Transit) (9)

AS1299Arelion (fka. Telia Carrier)

AS137409GSL Networks Pty LTD

AS174Cogent Communications, LLC

AS25091IP-Max SA

AS32097WholeSale Internet, Inc.

AS4230Claro (Embratel)

AS46849TEXAS LONE STAR NETWORK, LLC

AS6939Hurricane Electric LLC

AS971PureVoltage Hosting Inc.

Downstreams (Customers) (2)

AS13392Region 18 Education Service Center

AS19819Brady Communications, LLC

IPv4 Prefixes (25)

69.4.56.0/22

72.12.124.0/22

69.4.52.0/22

104.161.2.0/23

98.143.176.0/22

64.127.204.0/24

98.143.180.0/22

152.228.44.0/23

104.161.0.0/23

64.127.206.0/24

64.127.207.0/24

170.76.184.0/22

192.170.132.0/22

173.224.0.0/21

69.4.48.0/22

64.127.200.0/22

69.4.60.0/22

72.12.120.0/22

152.228.40.0/23

173.224.8.0/21

104.161.6.0/23

159.242.252.0/22

72.12.112.0/21

104.161.4.0/23

64.127.205.0/24

BGP Peers (4)

AS14907Wikimedia Foundation Inc.

AS209823Enki Multimedia EURL

AS35280F5 Networks SARL

AS49544i3D.net B.V

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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.