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

AS38017

ASN

APNIC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS38017

NameGLOBAL-TRANSIT-AS-SILBD

OrganisationSquare InformatiX Ltd

Country

RIRAPNIC

Allocated04.09.2008

Abuse contactahmed@squaregroup.com

Network Overview

IPv4 Prefixes17

IPv6 Prefixes0

Upstreams (Transit)2

Downstreams (Customers)5

BGP Peers0

AS Path (BGP neighbours)

Upstreams (Transit)

AS58656bdHUB Limited AS58682Level3 Carrier Ltd.

AS38017GLOBAL-TRANSIT-AS-SILBD

Downstreams (Customers)

AS139674Square InformatiX Ltd AS142159Bangladesh Public Administration Training Centre AS142571Citizens Bank PLC, Bangladesh AS55344Head Office AS58581Standard Bank LIMITED

Upstreams (Transit) (2)

AS58656bdHUB Limited

AS58682Level3 Carrier Ltd.

Downstreams (Customers) (5)

AS139674Square InformatiX Ltd

AS142159Bangladesh Public Administration Training Centre

AS142571Citizens Bank PLC, Bangladesh

AS55344Head Office

AS58581Standard Bank LIMITED

IPv4 Prefixes (17)

202.59.141.0/24

202.59.142.0/24

202.59.135.0/24

202.59.129.0/24

202.59.140.0/24

202.59.139.0/24

202.59.137.0/24

202.59.131.0/24

202.59.130.0/24

202.59.133.0/24

202.59.136.0/24

202.59.128.0/20

202.59.134.0/24

202.59.138.0/24

202.59.143.0/24

202.59.132.0/24

202.59.128.0/24

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.