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

AS45588

ASN

APNIC

RIR

112

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS45588

NameBTCL-ISP-AS

OrganisationBangladesh Telegraph & Telephone Board

Country

RIRAPNIC

Allocated20.10.2015

Abuse contactuzzal18@gmail.com

Network Overview

IPv4 Prefixes112

IPv6 Prefixes6

Upstreams (Transit)1

Downstreams (Customers)17

BGP Peers0

AS Path (BGP neighbours)

Upstreams (Transit)

AS17494Bangladesh Telegraph & Telephone Board

AS45588BTCL-ISP-AS

Downstreams (Customers)

AS133766SPEED ONE AS134068Rajshahi Krishi Unnayan Bank AS134585DDN Communication AS137568SKY SYSTEMS LTD AS137706National University AS139773Bangladesh Bureau of Educational Information and Statistics+11

Upstreams (Transit) (1)

AS17494Bangladesh Telegraph & Telephone Board

Downstreams (Customers) (17)

AS133766SPEED ONE

AS134068Rajshahi Krishi Unnayan Bank

AS134585DDN Communication

AS137568SKY SYSTEMS LTD

AS137706National University

AS139773Bangladesh Bureau of Educational Information and Statistics

AS139807Pioneer IT

AS141438Bangladesh SEZ Ltd.

AS149425Nazrul Network Service@Saidpur

AS149445Patriot Technologies

AS150304Bangladesh Television

AS150352Sky Business Center

IPv4 Prefixes (112)

180.211.129.0/24

114.130.137.0/24

114.130.159.0/24

180.211.143.0/24

114.130.142.0/24

114.130.173.0/24

114.130.139.0/24

114.130.136.0/24

180.211.146.0/24

114.130.176.0/24

180.211.195.0/24

114.130.180.0/24

114.130.157.0/24

114.130.162.0/24

114.130.130.0/24

180.211.193.0/24

180.211.159.0/24

180.211.205.0/24

114.130.189.0/24

180.211.191.0/24

180.211.243.0/24

114.130.155.0/24

180.211.248.0/21

203.112.211.0/24

180.211.141.0/24

114.130.171.0/24

180.211.142.0/24

114.130.172.0/24

180.211.237.0/24

114.130.169.0/24

180.211.162.0/24

180.211.238.0/24

180.211.192.0/21

180.211.145.0/24

114.130.175.0/24

180.211.233.0/24

203.112.214.0/24

203.112.200.0/22

114.130.177.0/24

180.211.153.0/24

180.211.160.0/19

180.211.147.0/24

114.130.183.0/24

180.211.156.0/24

114.130.186.0/24

203.112.215.0/24

114.130.158.0/24

114.130.181.0/24

180.211.254.0/24

180.211.181.0/24

203.112.210.0/24

114.130.188.0/24

180.211.239.0/24

180.211.154.0/24

114.130.184.0/24

180.211.186.0/24

114.130.190.0/24

180.211.137.0/24

180.211.248.0/24

180.211.249.0/24

180.211.227.0/24

114.130.152.0/22

180.211.196.0/24

180.211.250.0/24

180.211.161.0/24

180.211.211.0/24

203.112.206.0/24

180.211.187.0/24

114.130.168.0/24

114.130.191.0/24

114.130.131.0/24

114.130.174.0/24

114.130.160.0/24

180.211.144.0/24

180.211.197.0/24

180.211.192.0/24

203.112.212.0/22

180.211.255.0/24

180.211.232.0/24

114.130.141.0/24

114.130.165.0/24

114.130.182.0/24

180.211.152.0/24

180.211.135.0/24

180.211.214.0/24

180.211.228.0/24

180.211.207.0/24

180.211.210.0/24

114.130.132.0/22

114.130.187.0/24

180.211.173.0/24

114.130.185.0/24

180.211.215.0/24

114.130.161.0/24

114.130.138.0/24

203.112.213.0/24

114.130.156.0/24

180.211.247.0/24

203.112.209.0/24

114.130.143.0/24

114.130.166.0/24

180.211.199.0/24

114.130.128.0/24

114.130.148.0/22

114.130.140.0/24

180.211.128.0/19

114.130.152.0/24

114.130.129.0/24

114.130.144.0/22

114.130.164.0/24

180.211.219.0/24

180.211.134.0/24

IPv6 Prefixes (6)

2407:5000:800::/40

2407:5000:7100::/40

2407:5000:2::/48

2407:5000:1::/48

2407:5000:3::/48

2407:5000:7000::/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.