ASN Lookup – Networks, Upstreams and Prefixes

AS12187

ASN

ARIN

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS12187

NameMTAHQ1

OrganisationMetropolitan Transportation Authority

Country –

RIRARIN

Allocated13.04.1999

Network Overview

IPv4 Prefixes16

IPv6 Prefixes0

Upstreams IPv44

BGP Peers IPv40

Upstreams (Transit Providers)

IPv4

AS174 COGENT-174

AS46887 ZAYO-CCF-AS46887

AS54004 LIGHTPATH

AS701 UUNET

IPv4 Prefixes (16 total)

170.28.142.0/24

170.28.136.0/24

170.28.143.0/24

170.28.136.0/21

170.28.20.0/24

170.28.32.0/19

170.28.128.0/24

170.28.64.0/19

170.28.137.0/24

170.28.17.0/24

170.28.16.0/23

170.28.139.0/24

170.28.128.0/21

170.28.16.0/24

170.28.64.0/24

170.28.140.0/24

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.