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ASN Lookup
Networks, upstreams, peers and prefixes of an autonomous system
AS1921
ASN
RIPE NCC
RIR
15
IPv4 Prefixes
15
IPv6 Prefixes
AS Information
ASNAS1921
NameRCODEZERO-ANYCAST-SEC1-TLD
OrganisationNICAT-MNT
Country
RIRRIPE NCC
Allocated21.08.2002
Abuse contactreports@cert.at
Network Overview
IPv4 Prefixes15
IPv6 Prefixes15
Upstreams IPv410
BGP Peers IPv459
Upstreams (Transit Providers)
IPv4
AS1031 PEER1-1031
AS12552 GlobalConnect-AS12552
AS12779 ITGATE
AS137409 GSLNETWORKS-AS-AP
AS1836 GREEN
AS199524 GCORE
AS20473 AS-VULTR
AS21215 UGNI
AS215638 AS-CILIX-LIMITED
AS22548 AS22548
IPv4 Prefixes (15 total)
193.46.133.0/24
193.227.117.0/24
193.46.135.0/24
194.50.187.0/24
192.174.68.0/24
185.167.176.0/24
194.0.182.0/24
185.102.12.0/24
193.46.128.0/24
193.46.134.0/24
176.97.158.0/24
185.80.188.0/24
194.0.25.0/24
185.80.191.0/24
91.237.67.0/24
IPv6 Prefixes (15 total, showing 10)
2a04:2b00:14cc::/48
2001:678:20::/48
2001:67c:1bc::/48
2a05:7f00:188::/48
2a0b:8e00::/48
2a04:2b00:14ee::/48
2a0b:8e00:1::/48
2a02:850:ffe6::/48
2a02:850:ffe0::/48
2a02:850:ffff::/48
BGP Peers IPv4 (59 total, showing 20)
AS11644
AS12136
AS35052
AS12307
AS12969
AS14630
AS15623
AS16347
AS17639
AS18106
AS1828
AS196621
AS198150
AS198249
AS198385
AS202032
AS20612
AS207841
AS20932
AS209823
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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.

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