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Organization

Fastweb

IPv4 addresses
9,590,784
CIDR ranges
314
Category
enterprise
BGP prefixes announced
4,909

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

69/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →

Fastweb — global IP footprint

Cities where Fastweb has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

Countries served by Fastweb

Every country where this organization has IPv4 allocations, ranked by IPs held.

ASNs owned by Fastweb

ASNNameIPsPrefixesCountry
AS30722 Fastweb 5.58M 58 IT
AS12874 Fastweb 3.56M 63 IT
AS12663 Fastweb 361.5K 134 IT
AS44957 Fastweb 256 1 IT

Largest CIDR ranges

CIDRIPsPTR DensityASNCountryStateCity
93.32.0.0/11 2.10M
98.4%
AS12874 IT Tuscany Pisa
2.224.0.0/12 1.05M
99.7%
AS12874 IT Liguria Genoa
2.40.0.0/13 524.3K
99.7%
AS30722 IT Campania Giugliano in Campania
5.88.0.0/13 524.3K
99.9%
AS30722 IT Lazio Frosinone
37.176.0.0/13 524.3K
96.0%
AS30722 IT Lombardy Milan
93.64.0.0/13 524.3K
75.0%
AS30722 IT Lombardy Melzo
93.144.0.0/13 524.3K
99.9%
AS30722 IT Lombardy Milan
109.112.0.0/13 524.3K
99.2%
AS30722 IT Abruzzo Pescara
2.32.0.0/14 262.1K
99.8%
AS30722 IT Lazio Rome
31.156.0.0/14 262.1K
99.6%
AS30722 IT Piedmont Castiglione Tinella
37.116.0.0/14 262.1K
99.9%
AS30722 IT Tuscany Arezzo
176.244.0.0/14 262.1K
99.9%
AS30722 IT Sardinia Olbia
188.216.0.0/14 262.1K
99.9%
AS30722 IT Veneto Rovigo
2.38.0.0/15 131.1K
99.8%
AS30722 IT Campania Naples
89.96.0.0/15 131.1K
98.2%
AS12874 IT Lazio Rome
176.242.0.0/15 131.1K
99.9%
AS30722 IT Trentino-Alto Adige Bolzano
188.152.0.0/15 131.1K
96.8%
AS30722 IT Piedmont Turin
2.36.0.0/16 65.5K
99.7%
AS30722 IT Lombardy Milan
31.26.0.0/16 65.5K
99.8%
AS30722 IT Veneto Padua
37.159.0.0/16 65.5K
49.2%
AS30722 IT Lombardy Milan
47.53.0.0/16 65.5K
99.8%
AS30722 IT Piedmont Turin
83.225.0.0/16 65.5K
99.9%
AS30722 IT Calabria Lamezia Terme
85.18.0.0/16 65.5K
99.1%
AS12874 IT Lombardy Milan
91.81.0.0/16 65.5K
50.0%
AS30722 IT Tuscany Pisa
130.25.0.0/16 65.5K
99.9%
AS30722 IT Campania Naples
145.230.0.0/16 65.5K
0.0%
AS12663 DE — —
2.37.128.0/17 32.8K
99.8%
AS30722 IT Veneto Venice
31.27.128.0/17 32.8K
99.9%
AS30722 IT Campania Sorrento
81.208.0.0/17 32.8K
94.2%
AS12874 IT Lombardy Milan
83.103.0.0/17 32.8K
95.9%
AS12874 IT Lazio Rome
83.224.128.0/17 32.8K
0.0%
AS30722 IT Veneto Ponte di Piave
91.80.128.0/17 32.8K
0.0%
AS30722 IT Veneto Trieste
92.223.128.0/17 32.8K
99.1%
AS12874 IT — —
151.0.128.0/17 32.8K
99.9%
AS12874 IT Lazio Tuscania
192.125.128.0/17 32.8K
0.1%
AS12663 DE — —
2.37.0.0/18 16.4K
99.7%
AS30722 IT Veneto Albignasego
31.27.0.0/18 16.4K
99.9%
AS30722 IT Lombardy Corte Franca
37.186.192.0/18 16.4K
99.9%
AS12874 IT Lombardy Milan
46.108.0.0/18 16.4K
0.0%
AS12663 DE — —
46.108.128.0/18 16.4K
0.0%
AS12663 DE — —
62.101.64.0/18 16.4K
96.5%
AS12874 IT Lombardy Pavia
91.80.64.0/18 16.4K
0.0%
AS30722 IT Tuscany Florence
130.0.128.0/18 16.4K
99.8%
AS30722 IT Lombardy Milan
130.195.64.0/18 16.4K
0.0%
AS12663 DE — —
130.195.128.0/18 16.4K
0.0%
AS12663 DE — —
195.232.192.0/18 16.4K
1.8%
AS12663 DE — —
195.233.64.0/18 16.4K
0.2%
AS1273 DE — —
208.53.128.0/18 16.4K
0.0%
AS12663 DE — —
2.37.64.0/19 8.2K
99.8%
AS30722 IT Trentino-Alto Adige Bolzano
5.77.96.0/19 8.2K
0.0%
AS3269 IT — —
5.179.160.0/19 8.2K
0.0%
AS30722 IT Emilia-Romagna Bologna
37.25.192.0/19 8.2K
0.0%
AS1273 DE — —
46.108.64.0/19 8.2K
0.0%
AS12663 DE — —
46.190.160.0/19 8.2K
0.0%
AS12663 DE — —
91.80.0.0/19 8.2K
0.0%
AS30722 IT Lazio Rome
94.32.32.0/19 8.2K
0.0%
AS30722 IT Emilia-Romagna Modena
108.179.64.0/19 8.2K
0.0%
AS12663 DE — —
193.193.0.0/19 8.2K
0.0%
AS12874 FR — —
195.232.160.0/19 8.2K
1.9%
AS12663 DE — —
195.233.160.0/19 8.2K
0.1%
AS1273 DE — —
213.140.0.0/19 8.2K
98.2%
AS12874 IT Lombardy Milan
213.156.32.0/19 8.2K
98.3%
AS12874 IT Lombardy Milan
2.37.112.0/20 4.1K
99.9%
AS30722 IT Lombardy Milan
31.27.96.0/20 4.1K
99.9%
AS30722 IT Lazio Rome
37.25.128.0/20 4.1K
0.0%
AS12663 DE — —
37.25.176.0/20 4.1K
0.0%
AS12663 DE — —
46.108.0.0/20 4.1K
0.0%
AS12663 DE — —
46.108.48.0/20 4.1K
0.0%
AS12663 DE — —
46.108.96.0/20 4.1K
0.0%
AS12663 DE — —
46.108.176.0/20 4.1K
0.0%
AS12663 DE — —
46.108.192.0/20 4.1K
0.0%
AS12663 DE — —
46.108.240.0/20 4.1K
0.0%
AS12663 DE — —
46.190.192.0/20 4.1K
0.0%
AS12663 DE — —
46.190.224.0/20 4.1K
0.0%
AS12663 DE — —
47.73.192.0/20 4.1K
0.0%
AS1273 DE — —
62.177.0.0/20 4.1K
3.0%
AS12874 IT — —
83.224.64.0/20 4.1K
1.1%
AS30722 IT — —
85.205.176.0/20 4.1K
0.0%
AS1273 DE — —
85.205.208.0/20 4.1K
0.1%
AS12663 DE — —
91.80.48.0/20 4.1K
0.0%
AS30722 IT — —
108.179.96.0/20 4.1K
0.0%
AS12663 DE — —
130.195.32.0/20 4.1K
0.0%
AS12663 DE — —
139.47.160.0/20 4.1K
0.0%
AS12663 DE — —
195.232.128.0/20 4.1K
10.2%
AS12663 DE — —
195.233.32.0/20 4.1K
0.0%
AS1273 DE — —
2.37.96.0/21 2.0K
99.7%
AS30722 IT — —
5.152.240.0/21 2.0K
29.4%
AS12874 IT Lazio Rome
31.27.64.0/21 2.0K
100.0%
AS30722 IT — —
31.131.240.0/21 2.0K
99.9%
AS12874 IT Lombardy Milan
37.25.128.0/21 2.0K
0.0%
AS12663 DE — —
37.25.136.0/21 2.0K
0.0%
AS12663 IE — —
37.25.152.0/21 2.0K
0.0%
AS1273 DE — —
37.25.248.0/21 2.0K
0.0%
AS1273 DE — —
46.108.24.0/21 2.0K
0.0%
AS12663 DE — —
46.108.120.0/21 2.0K
0.0%
AS12663 DE — —
46.108.136.0/21 2.0K
0.0%
AS12663 DE — —
46.108.152.0/21 2.0K
0.0%
AS12663 DE — —
46.108.168.0/21 2.0K
0.0%
AS12663 DE — —
46.108.208.0/21 2.0K
0.0%
AS12663 DE — —
46.108.224.0/21 2.0K
0.0%
AS12663 DE — —

Frequently Asked Questions

How many IP addresses does Fastweb own?

Fastweb controls 9.59M IPv4 addresses distributed across 314 CIDR ranges. The organization is registered in Italy.

What ASNs does Fastweb operate?

Fastweb operates 4 Autonomous Systems. Each ASN represents an independently routed network that Fastweb manages for internet traffic delivery.

What type of organization is Fastweb?

Fastweb is categorized as enterprise. This classification is based on the organization's primary use of its IP address allocations.

Last updated: 2026-10-13 06:54:05 UTC
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