ASN Lookup – Networks, Upstreams and Prefixes

AS203273

ASN

RIPE NCC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS203273

NameNetCraftersOU

Organisationnetcrafters-mnt

Country –

RIRRIPE NCC

Allocated03.12.2025

Abuse contactabuse@netcrafters.host

Network Overview

IPv4 Prefixes64

IPv6 Prefixes3

Upstreams IPv410

BGP Peers IPv46

Upstreams (Transit Providers)

IPv4

AS12735 ASTurkNet

AS15958 CETIN_doo_AS

AS216246 RU-AEZA-AS

AS30823 AUROLOGIC

AS31500 GNM-AS

AS3356 LEVEL3

AS41327 FIBERTELECOM-AS

AS43727 KVANT-TELECOM

AS47692 NESSUS

AS50673 Serverius-as

IPv4 Prefixes (64 total, showing 20)

178.253.55.0/24

62.60.153.0/24

213.176.92.0/24

83.147.255.0/24

62.60.244.0/24

193.233.203.0/24

185.173.145.0/24

91.186.218.0/24

193.233.202.0/24

83.147.253.0/24

62.60.251.0/24

83.147.254.0/24

194.67.201.0/24

213.176.94.0/24

91.186.213.0/24

62.60.248.0/24

185.173.146.0/24

62.60.250.0/24

213.165.45.0/24

213.165.47.0/24

IPv6 Prefixes (3 total)

2a0e:d606::/48

2a01:e5c0:f000::/36

2a01:e5c0:9000::/36

BGP Peers IPv4 (6 total)

AS13004

AS208972

AS209823

AS35598

AS37721

AS44901

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.