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

AS10204

ASN

APNIC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS10204

NameARCNET-NTTMSC-MY

OrganisationNTT MSC Sdn Bhd

Country

RIRAPNIC

Allocated04.09.2008

Abuse contactap.eis-netops@global.ntt

Network Overview

IPv4 Prefixes29

IPv6 Prefixes2

Upstreams (Transit)6

Downstreams (Customers)5

BGP Peers8

AS Path (BGP neighbours)

Upstreams (Transit)

AS17645NTT Singapore Pte Ltd AS19551Incapsula Inc AS2914NTT America, Inc.AS4637Telstra International Limited AS6939Hurricane Electric LLC AS9304HGC Global Communications Limited

AS10204ARCNET-NTTMSC-MY

Downstreams (Customers)

AS132434MaxisNet International Internet Gateway AS136751Teleperformance Malaysia Sdn Bhd AS19236Steelcase, Inc.AS2571DHL Information Services (Europe) s.r.o AS55571No. 43000,

Upstreams (Transit) (6)

AS17645NTT Singapore Pte Ltd

AS19551Incapsula Inc

AS2914NTT America, Inc.

AS4637Telstra International Limited

AS6939Hurricane Electric LLC

AS9304HGC Global Communications Limited

Downstreams (Customers) (5)

AS132434MaxisNet International Internet Gateway

AS136751Teleperformance Malaysia Sdn Bhd

AS19236Steelcase, Inc.

AS2571DHL Information Services (Europe) s.r.o

AS55571No. 43000,

IPv4 Prefixes (29)

45.115.220.0/22

203.78.200.0/22

203.115.225.0/24

103.51.48.0/23

103.229.32.0/23

203.115.199.0/24

203.115.211.0/24

203.115.192.0/19

203.115.208.0/20

103.51.51.0/24

103.229.32.0/22

203.115.226.0/24

203.115.236.0/24

202.6.248.0/24

203.115.200.0/24

146.88.196.0/22

203.115.224.0/19

103.229.33.0/24

203.115.208.0/21

103.229.32.0/24

203.115.238.0/24

103.229.34.0/24

103.51.50.0/23

203.115.192.0/20

103.51.50.0/24

43.231.224.0/22

203.115.201.0/24

203.115.192.0/18

202.6.248.0/22

IPv6 Prefixes (2)

2402:1a80::/32

2001:c18::/32

BGP Peers (8)

AS142271EWS DS Networks Inc

AS1828PacketFabric / Unitas Global

AS199524Gcore S.A.

AS24482SG.GS

AS35280F5 Networks SARL

AS38001NewMedia Express Pte. Ltd.

AS45489Sri Lanka Telecom PLC

AS55720Gigabit Hosting Sdn Bhd

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.