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

AS21559

ASN

ARIN

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS21559

NameOSNET

OrganisationOSNET

Country –

RIRARIN

Allocated07.07.2010

Abuse contactabuse@osnetpr.com

Network Overview

IPv4 Prefixes42

IPv6 Prefixes1

Upstreams (Transit)23

Downstreams (Customers)39

BGP Peers16

AS Path (BGP neighbours)

Upstreams (Transit)

AS1031PEER 1031 LLC AS11367WorldNet Telecommunications, LLC AS12956Telxius (Telefonica Global)AS1299Arelion (fka. Telia Carrier)AS137409GSL Networks Pty LTD AS13786Seaborn (Seabras USA, LLC)+17

AS21559OSNET

Downstreams (Customers)

AS10524GOYA DE PUERTO RICO AS14534UNONET CORP AS18895Nustream Communications AS21944VelocityNet PR AS22109Universal Group, Inc.AS22555Smart Networks,LLC+33

Upstreams (Transit) (23)

AS1031PEER 1031 LLC

AS11367WorldNet Telecommunications, LLC

AS12956Telxius (Telefonica Global)

AS1299Arelion (fka. Telia Carrier)

AS137409GSL Networks Pty LTD

AS13786Seaborn (Seabras USA, LLC)

AS14840BR.DIGITAL

AS174Cogent Communications, LLC

AS20326TeraSwitch Networks Inc.

AS23379Blackburn Technologies II, LLC

AS264409Huge Networks

AS286GTT Communications Inc.

AS3257

AS3303

AS37468

AS393573Fuse Telecom LLC

Downstreams (Customers) (39)

AS10524GOYA DE PUERTO RICO

AS14534UNONET CORP

AS18895Nustream Communications

AS21944VelocityNet PR

AS22109Universal Group, Inc.

AS22555Smart Networks,LLC

AS271945AZTECA TELECOM S.R.L.

AS27213PRC Internet Corp

AS30294Familynet Inc.

AS36435M.S. Wifi Zone Inc.

AS3838Ubinet Wireless

AS393573Fuse Telecom LLC

IPv4 Prefixes (42)

192.254.96.0/24

192.254.96.0/20

200.5.22.0/24

198.52.240.0/22

38.107.88.0/21

72.46.156.0/23

173.239.228.0/24

208.81.59.0/24

167.94.225.0/24

204.77.11.0/24

104.218.241.0/24

208.81.58.0/23

154.64.208.0/21

38.2.160.0/19

69.24.200.0/24

198.52.241.0/24

200.5.16.0/20

104.218.240.0/22

69.24.199.0/24

199.116.62.0/24

198.52.240.0/24

69.24.197.0/24

72.46.157.0/24

173.239.206.0/24

149.18.39.0/24

104.238.232.0/23

192.254.97.0/24

149.18.21.0/24

154.64.216.0/21

72.46.158.0/23

204.77.10.0/23

67.206.200.0/21

74.119.24.0/22

69.24.198.0/24

200.5.23.0/24

172.93.2.0/23

192.254.109.0/24

104.238.192.0/22

38.87.232.0/21

167.94.224.0/23

192.228.98.0/23

74.119.24.0/24

IPv6 Prefixes (1)

2604:1cc0::/32

BGP Peers (16)

AS1828PacketFabric / Unitas Global

AS19151BroadbandONE, LLC

AS199524Gcore S.A.

AS20080Florida International University

AS24482SG.GS

AS263152MIGO TELECOM

AS263237PowerHost Telecom SPA

AS271253LINK BRASIL TELECOMUNICACOES LTDA

AS35280F5 Networks SARL

AS36236NetActuate, Inc

AS37721Virtual Technologies & Solutions

AS49544i3D.net B.V

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.