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

AS266636

ASN

–

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS266636

NameASN266636

OrganisationREDE WORKS TELECOM

Country

RIR–

Allocated14.06.2017

Abuse contactisaias@isaias.tec.br

Network Overview

IPv4 Prefixes6

IPv6 Prefixes2

Upstreams (Transit)5

Downstreams (Customers)0

BGP Peers0

AS Path (BGP neighbours)

Upstreams (Transit)

AS266181GOLDEN LINK AS271072ULTRAFIBRA NET REPRESENTACOES TELECOM EIRELI AS271387EMFIBRA TELECOM AS52875Montreal Informatica AS52928Nortetel Telecomunicações LTDA

AS266636ASN266636

Downstreams (Customers)

none

Upstreams (Transit) (5)

AS266181GOLDEN LINK

AS271072ULTRAFIBRA NET REPRESENTACOES TELECOM EIRELI

AS271387EMFIBRA TELECOM

AS52875Montreal Informatica

AS52928Nortetel Telecomunicações LTDA

IPv4 Prefixes (6)

128.201.56.0/24

128.201.59.0/24

128.201.58.0/24

128.201.57.0/24

177.105.246.0/24

177.105.247.0/24

IPv6 Prefixes (2)

2804:3f0c:f900::/40

2804:3f0c::/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.