ASN Lookup – Networks, Upstreams and Prefixes

AS111

ASN

ARIN

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS111

NameBOSTONU-AS

OrganisationBoston University

Country –

RIRARIN

Allocated11.05.1987

Network Overview

IPv4 Prefixes11

IPv6 Prefixes1

Upstreams IPv45

BGP Peers IPv41

Upstreams (Transit Providers)

IPv4

AS10578 GIGAPOP-NE

AS11164 INTERNET2-I2PX

AS11537 INTERNET2-RESEARCH-EDU

AS174 COGENT-174

AS3356 LEVEL3

IPv4 Prefixes (11 total)

192.5.207.0/24

192.12.190.0/23

128.197.136.0/24

192.12.185.0/24

192.12.186.0/23

128.197.0.0/16

168.122.0.0/16

128.197.254.0/24

192.5.206.0/24

192.54.224.0/24

192.12.189.0/24

IPv6 Prefixes (1 total)

2631:5000::/28

BGP Peers IPv4 (1 total)

AS10961

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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.