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ASN Lookup Tool
AS12874 FASTWEB

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS12874
Organisation
Fastweb SpA
Name
FASTWEB
Total IPv4 Addresses
3,564,790
Total IPv4 Prefixes
3,526
Total IPv6 Prefixes
2
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#138 out of 78,469
Registry
Ripe
Registered Country
IT flag IT
Registered Country Name
Italy
Registered Date
2002-09-13
Registration Last Change
2025-02-26
Receiving From

The list of active Autonomous Systems (ASs) which send traffic to that ASN.

ASN
Organisation
AS56662
PL flagMarcin Gondek
AS3356
US flagLevel 3 Parent, LLC
AS7713
ID flagTelekomunikasi Indonesia (PT)
AS3303
CH flagSwisscom (Schweiz) AG
AS3741
ZA flagDimension Data
Showing 5 of 67
Transit To

The list of active Autonomous Systems (ASs) which receive traffic from that ASN.

 

ASN
Organisation
AS59429
IT flagPolo Navacchio S.p.A.
AS65338
WORLD flagPrivate Use AS
AS65000
WORLD flagPrivate Use AS
AS6
US flagATOS IT Solutions and Services, Inc.
AS21176
IT flagEngineering D.HUB S.p.A.
Showing 5 of 212
IPv4 Active Prefixes

This provides the list of IPv4 address space routes/prefixes currently announced on Border Gateway Protocol (BGP).

Prefix2.16.17.0/24
Range From2.16.17.0
Range To2.16.17.255
Prefix2.19.179.0/24
Range From2.19.179.0
Range To2.19.179.255
Prefix2.224.0.0/18
Range From2.224.0.0
Range To2.224.63.255
Prefix2.224.64.0/20
Range From2.224.64.0
Range To2.224.79.255
Prefix2.224.80.0/23
Range From2.224.80.0
Range To2.224.81.255
Showing 5 of 3,526
IPv6 Active Prefixes
Prefix2001:b00::/29
Range From2001:b00::
Range To2001:b07:ffff:ffff:ffff:ffff:ffff:ffff
Prefix2a04:a580::/29
Range From2a04:a580::
Range To2a04:a587:ffff:ffff:ffff:ffff:ffff:ffff
Autonomous System (AS) is a network (or collection of networks) that are all managed and supervised by a single entity or organisation. This tool provides a comprehensive ownership and connectivity report for any given AS number.