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Tool
ASN Lookup
Networks, upstreams, peers and prefixes of an autonomous system
AS12874
ASN
RIPE NCC
RIR
110
IPv4 Prefixes
18
IPv6 Prefixes
AS Information
ASNAS12874
NameFASTWEB
OrganisationFASTWEB-MNT
Country
RIRRIPE NCC
Allocated13.09.2002
Abuse contactabuse@fastweb.it
Network Overview
IPv4 Prefixes110
IPv6 Prefixes18
Upstreams IPv410
BGP Peers IPv4255
Upstreams (Transit Providers)
IPv4
AS1267 ASN-WINDTRE
AS1273 CW
AS12779 ITGATE
AS1299 TWELVE99
AS13030 INIT7
AS137409 GSLNETWORKS-AS-AP
AS1764 NEXTLAYER-AS
AS201333 NAQUADRIA-AS
AS20562 OPEN-PEERING-AS
AS215638 AS-CILIX-LIMITED
IPv4 Prefixes (110 total, showing 20)
93.44.0.0/15
213.156.48.0/20
93.32.0.0/13
185.219.232.0/24
185.69.188.0/22
89.97.0.0/16
5.152.240.0/21
93.40.0.0/15
185.223.153.0/24
185.169.185.0/24
64.126.250.0/24
93.38.0.0/15
93.40.192.0/18
185.162.179.0/24
93.48.0.0/13
93.36.0.0/15
93.37.0.0/17
2.224.0.0/13
23.61.204.0/24
185.27.72.0/24
IPv6 Prefixes (18 total, showing 10)
2001:b07:e000::/36
2001:b07:7000::/36
2001:b07:8000::/36
2001:b07:c000::/36
2001:b07:d000::/36
2001:b07:3000::/36
2001:b00::/29
2001:b07:a000::/36
2001:b07:9000::/36
2001:b07:5000::/36
BGP Peers IPv4 (255 total, showing 20)
AS12481
AS12650
AS13018
AS13253
AS13254
AS13284
AS15553
AS15584
AS15660
AS15831
AS15887
AS15981
AS16052
AS196749
AS196784
AS196874
AS196880
AS196892
AS197845
AS197859
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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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