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

AS3790

ASN

LACNIC

RIR

217

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS3790

Name3790

OrganisationRADIOGRAFICA COSTARRICENSE

Country –

RIRLACNIC

Allocated25.08.1994

Abuse contactlacnicadmin@racsa.go.cr

Network Overview

IPv4 Prefixes217

IPv6 Prefixes5

Upstreams (Transit)2

Downstreams (Customers)6

BGP Peers0

AS Path (BGP neighbours)

Upstreams (Transit)

AS11830Instituto Costarricense de Electricidad y Telecom.AS52468UFINET PANAMA S.A.

AS37903790

Downstreams (Customers)

AS264654FIBERNET AS271891UNIVERSIDAD ESTATAL A DISTANCIA AS273147MUNICIPALIDAD DE CARRILLO GUANACASTE AS273987BANCO POPULAR Y DE DESARROLLO COMUNAL AS395299THE WESTERN UNION COMPANY AS52395Multiflex Payment Services Ltda

Upstreams (Transit) (2)

AS11830Instituto Costarricense de Electricidad y Telecom.

AS52468UFINET PANAMA S.A.

Downstreams (Customers) (6)

AS264654FIBERNET

AS271891UNIVERSIDAD ESTATAL A DISTANCIA

AS273147MUNICIPALIDAD DE CARRILLO GUANACASTE

AS273987BANCO POPULAR Y DE DESARROLLO COMUNAL

AS395299THE WESTERN UNION COMPANY

AS52395Multiflex Payment Services Ltda

IPv4 Prefixes (217)

200.122.143.0/24

190.241.123.0/24

190.241.200.0/24

190.10.0.0/21

190.241.79.0/24

196.40.74.0/23

190.241.206.0/24

190.241.48.0/24

190.241.182.0/24

190.241.24.0/22

190.241.116.0/24

190.241.70.0/23

190.10.29.0/24

200.122.134.0/24

196.40.15.0/24

190.241.32.0/24

190.10.28.0/24

190.241.28.0/23

196.40.12.0/24

190.10.8.0/24

190.241.20.0/22

190.171.22.0/24

190.10.34.0/24

196.40.40.0/21

196.40.64.0/21

190.241.132.0/24

190.241.17.0/24

190.241.112.0/22

190.10.25.0/24

196.40.54.0/24

196.40.8.0/24

190.10.26.0/24

196.40.38.0/24

196.40.5.0/24

196.40.20.0/24

190.241.39.0/24

196.40.80.0/24

190.241.121.0/24

190.241.4.0/23

196.40.0.0/20

190.10.0.0/20

196.40.81.0/24

196.40.11.0/24

190.10.121.0/24

190.171.48.0/20

190.241.59.0/24

196.40.93.0/24

196.40.0.0/19

190.171.23.0/24

190.241.78.0/24

190.241.190.0/24

190.10.10.0/24

200.122.129.0/24

190.10.15.0/24

190.241.6.0/24

196.40.3.0/24

190.171.38.0/24

196.40.40.0/24

196.40.23.0/24

196.40.52.0/24

190.241.127.0/24

196.40.91.0/24

190.171.4.0/22

190.241.119.0/24

196.40.4.0/24

190.171.45.0/24

196.40.64.0/24

196.40.68.0/24

190.241.196.0/23

190.241.112.0/23

190.241.160.0/19

190.10.19.0/24

196.40.53.0/24

190.241.12.0/24

190.171.18.0/24

190.241.50.0/24

196.40.70.0/24

190.10.32.0/24

190.171.24.0/24

190.241.160.0/20

190.241.42.0/24

190.241.180.0/24

190.241.8.0/24

200.122.128.0/24

190.241.37.0/24

196.40.2.0/24

200.122.160.0/24

200.122.137.0/24

196.40.56.0/21

196.40.14.0/24

190.10.30.0/24

190.241.34.0/24

190.171.4.0/24

196.40.95.0/24

190.241.142.0/23

196.40.80.0/20

190.241.32.0/19

196.40.55.0/24

190.171.32.0/24

190.171.36.0/24

196.40.6.0/24

190.241.68.0/23

190.171.32.0/19

190.241.49.0/24

190.171.0.0/24

190.241.77.0/24

190.241.240.0/20

196.40.72.0/24

196.40.49.0/24

200.122.172.0/24

190.241.204.0/24

190.241.195.0/24

190.241.94.0/24

190.10.28.0/22

190.241.135.0/24

190.171.16.0/24

190.171.5.0/24

190.241.202.0/23

200.122.139.0/24

190.241.53.0/24

190.241.208.0/20

190.241.11.0/24

196.40.62.0/24

190.171.17.0/24

190.10.31.0/24

190.241.30.0/24

190.171.16.0/22

190.171.28.0/24

190.241.122.0/24

190.10.27.0/24

190.241.12.0/22

196.40.41.0/24

190.10.26.0/23

190.241.199.0/24

200.122.177.0/24

190.10.66.0/24

190.171.8.0/24

190.10.16.0/23

190.10.20.0/22

200.122.164.0/24

190.241.58.0/24

190.10.11.0/24

200.122.180.0/24

196.40.16.0/24

190.241.44.0/24

196.40.69.0/24

190.241.51.0/24

190.241.35.0/24

190.171.25.0/24

200.122.130.0/24

196.40.36.0/22

196.40.90.0/24

190.241.188.0/24

190.10.68.0/22

196.40.92.0/24

190.241.224.0/19

200.122.191.0/24

200.122.150.0/24

190.10.64.0/23

190.241.0.0/22

190.10.13.0/24

196.40.34.0/23

196.40.94.0/24

196.40.86.0/24

190.241.55.0/24

196.40.0.0/24

196.40.16.0/20

190.241.4.0/24

190.171.39.0/24

190.241.54.0/24

196.40.35.0/24

196.40.85.0/24

190.241.205.0/24

190.171.27.0/24

190.241.33.0/24

190.241.18.0/23

196.40.89.0/24

190.241.9.0/24

196.40.50.0/23

196.40.59.0/24

190.241.36.0/24

190.241.88.0/21

190.171.9.0/24

190.10.122.0/23

200.122.133.0/24

190.241.144.0/20

196.40.19.0/24

190.241.128.0/24

196.40.76.0/22

190.241.38.0/24

196.40.42.0/24

190.10.76.0/22

190.241.64.0/21

200.122.160.0/20

196.40.13.0/24

200.122.128.0/19

196.40.22.0/24

190.10.14.0/24

190.171.3.0/24

181.224.74.0/24

190.241.8.0/23

190.10.9.0/24

190.241.126.0/24

190.241.80.0/24

200.122.160.0/19

190.241.52.0/24

190.241.80.0/21

190.241.57.0/24

196.40.88.0/24

190.241.192.0/22

200.122.190.0/24

190.241.95.0/24

190.241.5.0/24

196.40.65.0/24

190.241.72.0/24

190.241.56.0/24

196.40.71.0/24

IPv6 Prefixes (5)

2001:13d8::/32

2801:151:1::/48

2801:151::/48

2801:151:2a::/48

2801:151:4::/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.