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

AS27851

ASN

LACNIC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS27851

Name27851

OrganisationCOOPERATIVA ELECTRICA Y DE SERVICIOS PUBLICOS LUJANENSE LIMITADA

Country –

RIRLACNIC

Allocated20.09.2006

Abuse contactnoc@coopenetlujan.com.ar

Network Overview

IPv4 Prefixes23

IPv6 Prefixes5

Upstreams (Transit)4

Downstreams (Customers)3

BGP Peers0

AS Path (BGP neighbours)

Upstreams (Transit)

AS22927Telefonica de Argentina AS6057Administracion Nacional de Telecomunicaciones AS6939Hurricane Electric LLC AS7049Silica Networks Argentina S.A.

AS2785127851

Downstreams (Customers)

AS28051Coop. Telefónica y de obras y serv. públicos de Villa Flandria AS52442Universidad Nacional de Luján AS64099COOP DE GRAL VIAMONTE

Upstreams (Transit) (4)

AS22927Telefonica de Argentina

AS6057Administracion Nacional de Telecomunicaciones

AS6939Hurricane Electric LLC

AS7049Silica Networks Argentina S.A.

Downstreams (Customers) (3)

AS28051Coop. Telefónica y de obras y serv. públicos de Villa Flandria

AS52442Universidad Nacional de Luján

AS64099COOP DE GRAL VIAMONTE

IPv4 Prefixes (23)

170.231.37.0/24

200.81.158.0/24

200.110.184.0/21

170.231.38.0/24

170.231.36.0/22

200.110.189.0/24

200.110.188.0/24

200.110.184.0/24

200.81.155.0/24

200.81.152.0/24

200.81.159.0/24

200.110.191.0/24

200.81.157.0/24

200.110.190.0/24

200.110.186.0/24

200.110.187.0/24

200.81.153.0/24

200.81.154.0/24

200.81.156.0/24

170.231.39.0/24

200.81.152.0/21

200.110.185.0/24

170.231.36.0/24

IPv6 Prefixes (5)

2803:3680:7f00::/40

2803:3680::/32

2803:3680::/48

2803:3680:2::/48

2803:3680:3::/48

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.