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ASN Lookup
Networks, upstreams, peers and prefixes of an autonomous system
AS25577
ASN
RIPE NCC
RIR
55
IPv4 Prefixes
1
IPv6 Prefixes
AS Information
ASNAS25577
NameC4L-AS
Organisationlir-uk-frame-1-MNT
Country
RIRRIPE NCC
Allocated15.01.2003
Abuse contactfrank@bec.uk
Network Overview
IPv4 Prefixes55
IPv6 Prefixes1
Upstreams IPv410
BGP Peers IPv450
Upstreams (Transit Providers)
IPv4
AS12552 GlobalConnect-AS12552
AS1267 ASN-WINDTRE
AS12779 ITGATE
AS13030 INIT7
AS137409 GSLNETWORKS-AS-AP
AS15412 FLAG-AS
AS15802 DU-AS1
AS174 COGENT-174
AS205434 Elasticity
AS20562 OPEN-PEERING-AS
IPv4 Prefixes (55 total, showing 20)
31.3.211.0/24
178.251.239.0/24
84.45.8.0/21
84.45.64.0/18
5.133.191.0/24
185.5.88.0/22
109.68.64.0/23
81.27.92.0/23
85.159.88.0/24
84.45.75.0/24
81.27.87.0/24
31.3.221.0/24
62.69.143.0/24
109.104.105.0/24
81.27.66.0/23
81.27.92.0/24
81.27.75.0/24
185.229.20.0/23
78.40.56.0/23
85.159.90.0/23
IPv6 Prefixes (1 total)
2001:9d8::/32
BGP Peers IPv4 (50 total, showing 20)
AS203035
AS205434
AS206626
AS207162
AS31708
AS44934
AS49503
AS50882
AS51572
AS56990
AS59493
AS12969
AS13237
AS14630
AS16347
AS17639
AS18106
AS1828
AS198150
AS207841
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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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