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

AS137645

ASN

APNIC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS137645

NameMSPL-AS

Country

RIRAPNIC

Allocated12.12.2018

Abuse contactnoc@macrosignal.net

Network Overview

IPv4 Prefixes12

IPv6 Prefixes1

Upstreams (Transit)3

Downstreams (Customers)4

BGP Peers4

AS Path (BGP neighbours)

Upstreams (Transit)

AS133296Web Werks India Pvt. Ltd.AS18229CtrlS AS35280F5 Networks SARL

AS137645MSPL-AS

Downstreams (Customers)

AS133298Netflow broadband Pvt Ltd.AS135268As Broadband Pvt Ltd AS138771Specific Net Pvt. Ltd.AS150584Badlapur Broabband Services Private Limited

Upstreams (Transit) (3)

AS133296Web Werks India Pvt. Ltd.

AS18229CtrlS

AS35280F5 Networks SARL

Downstreams (Customers) (4)

AS133298Netflow broadband Pvt Ltd.

AS135268As Broadband Pvt Ltd

AS138771Specific Net Pvt. Ltd.

AS150584Badlapur Broabband Services Private Limited

IPv4 Prefixes (12)

162.4.81.0/24

103.127.22.0/24

103.188.218.0/24

157.15.251.0/24

160.25.138.0/24

103.188.219.0/24

103.127.21.0/24

103.127.20.0/24

160.25.139.0/24

162.4.80.0/24

103.127.23.0/24

157.15.250.0/24

IPv6 Prefixes (1)

2400:35a0::/32

BGP Peers (4)

AS142289Roxonic Systems

AS24482SG.GS

AS36236NetActuate, Inc

AS45489Sri Lanka Telecom PLC

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.