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

AS72

ASN

ARIN

RIR

141

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS72

NameSCHLUMBERGER-AS

OrganisationSchlumberger Limited

Country –

RIRARIN

Allocated05.05.1986

Network Overview

IPv4 Prefixes141

IPv6 Prefixes0

Upstreams (Transit)36

Downstreams (Customers)0

BGP Peers3

AS Path (BGP neighbours)

Upstreams (Transit)

AS12389Rostelecom PJSC AS1273Vodafone Group PLC AS132280Symphony Communication (Thailand) PCL.AS135523Multinet Broadband AS151506PT Widjaja Piranti Teknologi AS15802Emirates Integrated Telecommunications Company PJSC+30

AS72SCHLUMBERGER-AS

Downstreams (Customers)

none

Upstreams (Transit) (36)

AS12389Rostelecom PJSC

AS1273Vodafone Group PLC

AS132280Symphony Communication (Thailand) PCL.

AS135523Multinet Broadband

AS151506PT Widjaja Piranti Teknologi

AS15802Emirates Integrated Telecommunications Company PJSC

AS16735Algar Telecom

AS174Cogent Communications, LLC

AS18101Reliance Communications Ltd.DAKC MUMBAI

AS196925Azertelecom LLC

AS20562Open Peering (Broadband Hosting B.V.)

AS24785Joint Transit (Broadband Hosting B.V.)

IPv4 Prefixes (141)

192.23.94.0/24

136.250.0.0/16

192.23.236.0/24

192.23.26.0/24

129.87.0.0/16

192.23.63.0/24

199.6.208.0/23

199.6.167.0/24

199.6.210.0/23

136.253.192.0/18

192.23.185.0/24

192.23.27.0/24

192.23.119.0/24

163.185.0.0/16

192.23.67.0/24

204.17.162.0/24

192.23.42.0/24

192.23.8.0/24

199.6.128.0/17

192.23.92.0/24

136.252.253.0/24

192.23.19.0/24

199.6.160.0/21

192.23.91.0/24

192.23.142.0/24

192.23.93.0/24

198.136.232.0/24

199.168.8.0/23

192.23.152.0/24

192.23.75.0/24

199.6.194.0/24

199.6.165.0/24

192.23.248.0/24

192.23.82.0/24

199.6.166.0/24

192.23.76.0/24

199.6.232.0/24

199.6.200.0/21

134.32.0.0/16

192.23.190.0/24

192.23.72.0/24

136.252.252.0/24

192.23.12.0/24

192.31.32.0/24

192.23.44.0/24

192.23.167.0/24

192.23.189.0/24

199.168.0.0/21

192.23.11.0/24

192.12.43.0/24

192.23.130.0/24

192.23.65.0/24

192.23.238.0/24

199.6.168.0/24

192.23.104.0/24

199.6.234.0/23

192.23.175.0/24

199.6.136.0/24

192.23.14.0/24

192.23.186.0/24

136.252.251.0/24

192.23.25.0/24

136.252.0.0/16

192.23.22.0/24

204.17.160.0/23

163.186.0.0/16

192.23.89.0/24

192.23.177.0/24

192.23.32.0/24

198.176.175.0/24

192.23.80.0/24

163.188.0.0/16

192.12.34.0/23

192.23.103.0/24

192.12.40.0/24

212.192.205.0/24

204.126.126.0/23

192.23.162.0/24

192.23.21.0/24

204.17.158.0/23

192.23.156.0/24

192.23.127.0/24

199.6.164.0/24

192.23.182.0/24

199.6.176.0/20

192.23.66.0/24

192.58.38.0/23

192.23.169.0/24

192.23.62.0/24

136.251.0.0/16

192.23.31.0/24

204.17.157.0/24

199.6.168.0/21

199.6.240.0/22

192.23.100.0/24

128.58.0.0/16

192.23.37.0/24

192.23.198.0/24

192.23.176.0/24

192.58.37.0/24

192.23.109.0/24

198.160.175.0/24

163.183.0.0/16

163.184.0.0/16

192.23.84.0/24

136.252.254.0/24

192.23.137.0/24

137.144.0.0/16

192.23.153.0/24

136.249.64.0/18

192.23.10.0/24

192.23.173.0/24

199.6.248.0/24

136.252.128.0/17

136.253.0.0/16

136.254.0.0/16

199.6.148.0/24

192.23.81.0/24

192.23.166.0/24

192.23.163.0/24

192.23.58.0/24

136.249.32.0/19

192.23.0.0/16

192.23.86.0/24

192.23.108.0/24

136.249.0.0/16

199.6.247.0/24

192.31.36.0/24

195.19.192.0/24

192.23.135.0/24

192.23.83.0/24

192.23.85.0/24

199.6.233.0/24

192.23.110.0/24

192.23.68.0/23

192.23.20.0/24

198.160.176.0/24

212.193.96.0/24

163.187.0.0/16

192.23.105.0/24

192.23.114.0/24

BGP Peers (3)

AS199524Gcore S.A.

AS24482SG.GS

AS49544i3D.net B.V

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.