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

AS27953

ASN

LACNIC

RIR

137

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS27953

Name27953

OrganisationNODOSUD S.A

Country –

RIRLACNIC

Allocated21.01.2008

Abuse contactjlsilvera@nodosud.com.ar

Network Overview

IPv4 Prefixes137

IPv6 Prefixes11

Upstreams (Transit)3

Downstreams (Customers)8

BGP Peers0

AS Path (BGP neighbours)

Upstreams (Transit)

AS3356Lumen (Level 3)AS7049Silica Networks Argentina S.A.AS7303Telecom Argentina S.A.

AS2795327953

Downstreams (Customers)

AS263712Infodocta Internet Banda Ancha de Eliana Andrea Brustolín AS263780Global Telecomunicaciones SRL AS265774COOP. DE PROVISION DE ENERGIA ELECTRICA Y OTROS SERVICIOS PUBLICOS Y SOCIALES DE VIVIENDA Y CREDITO DE ELORTONDO LTDA AS265879COOPERATIVA DE OBRAS Y SERVICIOS PUBLICOS DE CANALS LIMITADA AS267792COOPERATIVA DE PROVISION DE OBRAS Y SERV PUBL Y SOC Y DE VIVIENDA DE OLIVA LTDA AS269917COOPERATIVA LIMITADA DE ELECTRICIDAD DE GUATIMOZIN+2

Upstreams (Transit) (3)

AS3356Lumen (Level 3)

AS7049Silica Networks Argentina S.A.

AS7303Telecom Argentina S.A.

Downstreams (Customers) (8)

AS263712Infodocta Internet Banda Ancha de Eliana Andrea Brustolín

AS263780Global Telecomunicaciones SRL

AS265774COOP. DE PROVISION DE ENERGIA ELECTRICA Y OTROS SERVICIOS PUBLICOS Y SOCIALES DE VIVIENDA Y CREDITO DE ELORTONDO LTDA

AS265879COOPERATIVA DE OBRAS Y SERVICIOS PUBLICOS DE CANALS LIMITADA

AS267792COOPERATIVA DE PROVISION DE OBRAS Y SERV PUBL Y SOC Y DE VIVIENDA DE OLIVA LTDA

AS269917COOPERATIVA LIMITADA DE ELECTRICIDAD DE GUATIMOZIN

AS271914SEMPRINI EMILIANO EFREN

AS52303COOP.DE OB.Y SERVICIOS PUB. DE MARCOS JUAREZ

IPv4 Prefixes (137)

200.7.181.0/24

186.64.84.0/24

186.0.134.0/24

190.211.128.0/24

190.122.131.0/24

186.0.128.0/21

186.64.91.0/24

186.64.89.0/24

190.11.201.0/24

186.64.68.0/24

190.122.136.0/24

200.85.88.0/21

186.190.160.0/24

186.64.78.0/24

190.122.130.0/24

200.85.89.0/24

190.122.132.0/24

190.11.198.0/24

190.11.197.0/24

186.190.172.0/24

190.122.135.0/24

181.118.191.0/24

186.64.85.0/24

186.64.77.0/24

190.122.129.0/24

200.7.182.0/24

186.190.163.0/24

186.64.95.0/24

181.118.176.0/24

181.118.186.0/24

186.64.87.0/24

186.64.83.0/24

190.11.192.0/24

186.64.82.0/24

190.11.204.0/24

190.122.139.0/24

200.7.180.0/24

190.11.200.0/24

181.118.178.0/24

190.122.134.0/24

186.190.174.0/24

190.11.199.0/24

186.190.173.0/24

186.190.169.0/24

186.64.64.0/19

186.64.69.0/24

186.190.164.0/24

186.190.165.0/24

186.64.86.0/24

186.64.70.0/24

181.118.185.0/24

190.11.206.0/24

190.11.194.0/24

186.64.94.0/24

200.7.179.0/24

190.11.192.0/20

190.211.135.0/24

200.7.176.0/21

181.118.182.0/24

186.64.74.0/24

190.122.143.0/24

186.190.162.0/24

200.7.177.0/24

186.64.72.0/24

190.122.141.0/24

186.64.80.0/24

186.190.166.0/24

181.118.181.0/24

186.190.168.0/24

186.190.160.0/20

186.0.131.0/24

186.64.67.0/24

186.64.90.0/24

200.85.93.0/24

190.211.134.0/24

186.64.75.0/24

186.190.167.0/24

190.122.142.0/24

200.85.94.0/24

190.11.195.0/24

190.122.138.0/24

200.7.183.0/24

181.118.177.0/24

190.11.207.0/24

186.190.170.0/24

190.11.203.0/24

190.122.128.0/20

200.85.95.0/24

200.85.88.0/24

190.11.193.0/24

190.11.205.0/24

186.64.88.0/24

181.118.179.0/24

190.211.128.0/21

200.85.91.0/24

190.11.196.0/24

186.0.132.0/24

181.118.188.0/24

186.190.171.0/24

186.64.92.0/24

190.122.133.0/24

186.64.81.0/24

186.0.130.0/24

181.118.183.0/24

190.211.131.0/24

186.64.66.0/24

190.211.132.0/24

190.211.133.0/24

186.64.65.0/24

186.0.133.0/24

190.122.140.0/24

181.118.180.0/24

190.211.130.0/24

186.190.175.0/24

200.7.178.0/24

190.122.137.0/24

190.211.129.0/24

186.64.64.0/24

190.11.202.0/24

186.190.161.0/24

186.0.129.0/24

186.64.79.0/24

200.7.176.0/24

200.85.92.0/24

181.118.189.0/24

181.118.184.0/24

186.64.93.0/24

181.118.187.0/24

200.85.90.0/24

186.64.73.0/24

186.64.71.0/24

181.118.176.0/20

186.0.135.0/24

190.122.128.0/24

186.0.128.0/24

181.118.190.0/24

186.64.76.0/24

IPv6 Prefixes (11)

2800:940:700::/40

2800:940:8000::/40

2800:940:300::/40

2800:940::/33

2800:940:200::/40

2800:940::/32

2800:940:500::/40

2800:940:800::/40

2800:940:100::/40

2800:940:8000::/33

2800:940:1200::/40

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.