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

AS136224

ASN

APNIC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS136224

NameCITYONLINELTD-AS-AP

OrganisationCity Online Ltd.

Country

RIRAPNIC

Allocated20.01.2017

Abuse contactabuse@cityonline-bd.net

Network Overview

IPv4 Prefixes23

IPv6 Prefixes11

Upstreams (Transit)5

Downstreams (Customers)2

BGP Peers0

AS Path (BGP neighbours)

Upstreams (Transit)

AS10075Fiber@Home Global Limited AS150748Gmax AS151412Gmax AS58715EARTH TELECOMMUNICATION (Pvt) LTD.AS58717Summit Communications Ltd

AS136224CITYONLINELTD-AS-AP

Downstreams (Customers)

AS154351Star Network AS154352Digonto Communication Network

Upstreams (Transit) (5)

AS10075Fiber@Home Global Limited

AS150748Gmax

AS151412Gmax

AS58715EARTH TELECOMMUNICATION (Pvt) LTD.

AS58717Summit Communications Ltd

Downstreams (Customers) (2)

AS154351Star Network

AS154352Digonto Communication Network

IPv4 Prefixes (23)

103.84.36.0/24

113.212.108.0/24

113.212.110.0/24

202.91.41.0/24

103.192.156.0/24

202.91.40.0/22

113.212.108.0/22

103.84.36.0/22

103.192.158.0/24

103.192.157.0/24

103.84.38.0/24

202.91.40.0/24

103.84.39.0/24

103.84.37.0/24

113.212.109.0/24

202.91.42.0/24

113.212.108.0/23

103.192.156.0/22

113.212.111.0/24

202.91.43.0/24

103.192.159.0/24

103.84.36.0/23

103.84.38.0/23

IPv6 Prefixes (11)

2400:9940:1100::/40

2400:9940:1900::/40

2400:9940:1200::/40

2400:9940:1600::/40

2400:9940:1000::/40

2400:9940:1700::/40

2400:9940:5::/48

2400:9940:1300::/40

2400:9940:1800::/40

2400:9940:1500::/40

2400:9940:1400::/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.