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

AS45538

ASN

APNIC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS45538

NameODSJSC-AS-VN

Country

RIRAPNIC

Allocated31.12.2008

Abuse contacthm-changed@vnnic.vn

Network Overview

IPv4 Prefixes72

IPv6 Prefixes4

Upstreams (Transit)3

Downstreams (Customers)5

BGP Peers0

AS Path (BGP neighbours)

Upstreams (Transit)

AS135905Vietnam P&T AS45903CMC Telecom Infrastructure Company AS59796StormWall s.r.o.

AS45538ODSJSC-AS-VN

Downstreams (Customers)

AS131367Viet Online trading service corporation AS135949Cloudfone Viet Nam Joint Stock Company AS140781VIET HOSTING COMPANY LIMITED AS55305ODS Joint Stock Company AS7602Sai gon Postel Corporation

Upstreams (Transit) (3)

AS135905Vietnam P&T

AS45903CMC Telecom Infrastructure Company

AS59796StormWall s.r.o.

Downstreams (Customers) (5)

AS131367Viet Online trading service corporation

AS135949Cloudfone Viet Nam Joint Stock Company

AS140781VIET HOSTING COMPANY LIMITED

AS55305ODS Joint Stock Company

AS7602Sai gon Postel Corporation

IPv4 Prefixes (72)

103.130.56.0/22

103.54.248.0/24

45.117.167.0/24

103.54.251.0/24

103.54.248.0/22

112.78.2.0/24

103.54.249.0/24

103.249.103.0/24

103.130.59.0/24

103.54.250.0/24

103.237.151.0/24

125.253.116.0/24

103.237.148.0/22

112.78.3.0/24

103.130.56.0/24

43.239.224.0/22

112.78.13.0/24

112.78.4.0/24

103.237.148.0/24

103.234.37.0/24

125.253.123.0/24

103.249.101.0/24

125.253.121.0/24

103.15.48.0/24

125.253.119.0/24

43.239.227.0/24

125.253.113.0/24

103.130.58.0/24

112.78.9.0/24

103.249.102.0/24

112.78.15.0/24

125.253.117.0/24

103.234.36.0/22

103.129.89.0/24

125.253.122.0/24

43.239.225.0/24

125.253.115.0/24

125.253.126.0/24

112.78.1.0/24

112.78.7.0/24

125.253.125.0/24

103.237.149.0/24

103.129.88.0/24

103.234.36.0/24

160.191.249.0/24

103.15.48.0/22

43.239.224.0/24

112.78.6.0/24

103.15.51.0/24

112.78.5.0/24

160.191.248.0/23

103.249.100.0/24

43.239.226.0/24

103.130.57.0/24

125.253.112.0/24

112.78.0.0/24

112.78.11.0/24

112.78.8.0/24

103.249.100.0/22

112.78.14.0/24

103.234.38.0/24

125.253.127.0/24

103.237.150.0/24

160.191.248.0/24

103.15.50.0/24

112.78.10.0/24

103.234.39.0/24

125.253.120.0/24

112.78.12.0/24

125.253.118.0/24

125.253.124.0/24

103.15.49.0/24

IPv6 Prefixes (4)

2405:9d80::/32

2405:7bc0::/48

2401:75a0::/48

2405:9d80:f000::/36

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.