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

AS263785

ASN

LACNIC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS263785

Name263785

OrganisationCOLUMBUS NETWORKS DE COSTA RICA SOCIEDAD DE RESPONSABILIDAD LIMITADA

Country –

RIRLACNIC

Allocated16.06.2015

Abuse contactjairo.aguero@libertycr.com

Network Overview

IPv4 Prefixes12

IPv6 Prefixes2

Upstreams (Transit)3

Downstreams (Customers)3

BGP Peers0

AS Path (BGP neighbours)

Upstreams (Transit)

AS23520Columbus Networks USA, Inc.AS3356Lumen (Level 3)AS52228Cable Tica

AS263785263785

Downstreams (Customers)

AS21433Accenture UK Limited AS267740UNIVERSIDAD U LATINA SRL AS52429BAC LATAM SSC SOCIEDAD ANONIMA

Upstreams (Transit) (3)

AS23520Columbus Networks USA, Inc.

AS3356Lumen (Level 3)

AS52228Cable Tica

Downstreams (Customers) (3)

AS21433Accenture UK Limited

AS267740UNIVERSIDAD U LATINA SRL

AS52429BAC LATAM SSC SOCIEDAD ANONIMA

IPv4 Prefixes (12)

45.167.199.0/24

45.167.196.0/24

138.122.25.0/24

138.122.27.0/24

179.189.223.0/24

45.167.198.0/24

45.167.197.0/24

138.122.24.0/24

138.122.26.0/24

168.197.135.0/24

186.15.150.0/24

186.15.151.0/24

IPv6 Prefixes (2)

2803:b440::/32

2803:1da0::/32

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.