AS12874 Fastweb

AS12874 is operated by Fastweb and registered with RIPE NCC (IT) since 1999-12-17.

It announces 110 IPv4 and 18 IPv6 prefixes, 77% of them RPKI valid.

RIPE RIS sees 48 upstream and peer networks and 207 downstream networks next to it.

PeeringDB lists it as a Cable/DSL/ISP network at 12 internet exchanges and 13 facilities. Its peering policy is selective.

Run the full network report BGP lookup WHOIS PeeringDB lookup

Name	Fastweb
Registry (RIR)	RIPE NCC
Country	Italy (IT)
Delegated on	1999-12-17
Network type	Cable/DSL/ISP, Europe
Peering policy	Selective
IRR as-set	AS-FASTWEB-GLOBAL
Prefixes (IPv4 / IPv6)	110 / 18
RPKI valid	77% (99 / 128)
Upstreams and peers	48
Downstream networks	207
Website	fastweb.it

Routing health

AS12874 announces 110 IPv4 and 18 IPv6 prefixes.
99 of 128 announced prefixes are RPKI valid.
29 announced prefixes are not covered by a ROA of AS12874 (they may have none, or another network’s).
48 upstreams and peers, 207 downstream networks seen.

For every check with the fix (IRR route objects, the RPKI state of each route, reverse DNS and the registration), run the full network report.

Announced prefixes 128

2.16.17.0/24
2.19.179.0/24
2.224.0.0/13
2.232.0.0/13
5.1.44.0/24
5.152.240.0/21
23.61.204.0/24
31.131.240.0/21
37.99.240.0/24
37.153.135.0/24
37.186.192.0/18
45.82.228.0/22
45.90.124.0/24
62.101.64.0/19
62.101.96.0/19
62.101.124.0/22
62.177.0.0/20
62.182.103.0/24
64.126.250.0/24
80.67.66.0/24
81.208.0.0/18
81.208.64.0/18
83.103.0.0/17
83.103.0.0/18
83.103.64.0/18
84.53.184.0/24
85.18.0.0/16
85.18.0.0/17
85.18.128.0/17
85.118.144.0/23
89.39.200.0/24
89.43.192.0/24
89.96.0.0/15
89.96.0.0/16
89.97.0.0/16
91.225.244.0/22
92.223.128.0/17
92.242.172.0/22
93.32.0.0/12
93.32.0.0/13
93.32.0.0/14
93.32.0.0/15
93.33.0.0/16
93.34.0.0/15
93.36.0.0/14
93.36.0.0/15
93.37.0.0/17
93.37.128.0/17
93.38.0.0/15
93.39.0.0/16
93.40.0.0/13
93.40.0.0/14
93.40.0.0/15
93.40.128.0/18
93.40.192.0/18
93.41.0.0/16
93.42.0.0/15
93.42.0.0/16
93.43.0.0/16
93.44.0.0/14
93.44.0.0/15
93.46.0.0/15
93.48.0.0/13
93.56.0.0/14
93.60.0.0/15
93.62.0.0/15
151.0.128.0/17
158.255.240.0/21
170.248.136.0/24
176.122.196.0/23
176.122.198.0/24
185.7.112.0/22
185.22.84.0/24
185.22.85.0/24
185.27.72.0/24
185.27.73.0/24
185.36.72.0/22
185.43.19.0/24
185.69.188.0/22
185.139.48.0/24
185.139.49.0/24
185.146.134.0/24
185.162.179.0/24
185.169.184.0/24
185.169.185.0/24
185.169.186.0/24
185.169.187.0/24
185.190.214.0/24
185.190.215.0/24
185.219.180.0/22
185.219.232.0/24
185.219.234.0/24
185.223.153.0/24
193.3.50.0/24
193.27.28.0/22
193.35.4.0/22
193.42.234.0/24
193.42.238.0/24
193.43.16.0/24
193.43.17.0/24

Showing the first 100.

Upstreams and peers 48

The networks RIPE RIS sees next to AS12874 in BGP paths, the most visible first.

Peering

Peering policy: Selective. Suggested max-prefix limits: 1,500 IPv4, 150 IPv6. PeeringDB record

Internet exchanges 12

Exchange	Ports	Speed	Route server
AMS-IX	1	100G	No
DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN	1	100G	No
Equinix Milan: Equinix IX - ML Metro	1	100G	No
Ge-DIX	1	10G	No
LINX LON1: Main	1	100G	No
MINAP Milan: MINAP	1	100G	No
MIX Roma	1	100G	No
MIX-IT	2	600G	No
Namex Rome: VLAN Peering	1	200G	No
TIX	1	10G	No
TOP-IX: Public Peering VLAN	1	10G	No
VSIX: Primary	1	10G	No

Facilities 13

Facility	City	Country
Aruba IT3 - Milan PSP	Ponte San Pietro	IT
Aruba IT4 - Rome	Rome	IT
DATA4 Milan-Cornaredo - MIL1	Cornaredo (MI)	IT
Equinix ML2 - Milan, Savona	Milan	IT
Equinix ML3 - Milan, Basiglio	Milan	IT
Liguria Digitale Data Center - WTC	Genoa	IT
MIX DC CALDERA	Milan	IT
Namex Bari Datacenter	Bari	IT
Namex Datacenter Rome	Rome	IT
Open Hub Med	Carini	IT
Retelit Avalon 1	Milan	IT
Vaultica Data Centers \| MIL01	Siziano	IT
VSIX	Padova	IT

More about AS12874

← AS12873 AS12876 →

Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-12 15:55 UTC. The country is where the AS number was registered, not necessarily where the network operates.