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AS12874

Fastweb

Italy (IT)

ASN Information

AS NumberAS12874
AS NameFASTWEB
OrganizationFASTWEB Fastweb SpA
Also known asNot available
CountryItaly (IT)
RegistryRIPE NCC
ASN TypeCable/DSL/ISP
Last Seen
Announcement Count128
IPv4 Prefix Count110
IPv6 Prefix Count18
RPKI StatusValid ×32NotFound ×10Unknown (could not be determined) ×8
IRR RecordsView IRR route objects
Websitehttp://www.fastweb.it ↗

AS Path to AS12874

  1. 37271—
  2. 3303SWISSCOM Swisscom (Schweiz) AG
  3. 12874Origin

Most common path, seen 20× in route collector data, latest at a collector in Johannesburg (2026-10-25 13:38:59 UTC). Prepends collapsed.

Route Collectors (Visibility)

Sydney: 11 peer session(s)São Paulo: 17 peer session(s)Johannesburg: 19 peer session(s)Singapore: 23 peer session(s)Amsterdam: 25 peer session(s)London: 32 peer session(s)Eugene, OR: 56 peer session(s)
High (10+ peers)Medium (3–9)Low (1–2)

Approximate route collector locations, coloured by peer sessions carrying this AS's routes.

Announced Prefixes (128)

View All →
PrefixFamilyRPKILast Seen
2.16.17.0/24IPv4ValidNot looked up yet
2.19.179.0/24IPv4ValidNot looked up yet
2.224.0.0/13IPv4ValidNot looked up yet
2.232.0.0/13IPv4ValidNot looked up yet
5.1.44.0/24IPv4NotFoundNot looked up yet
5.152.240.0/21IPv4NotFoundNot looked up yet
23.61.204.0/24IPv4ValidNot looked up yet
31.131.240.0/21IPv4NotFoundNot looked up yet

Peers (285)

View All →
ASNameRelationshipPathsLast Seen
AS3303SWISSCOM Swisscom (Schweiz) AGUpstream (inferred)177
AS3356LEVEL3 - Level 3 Parent, LLCUpstream (inferred)147
AS1273CW - IDDQD-ASUpstream (inferred)146
AS1299TWELVE99 Arelion Sweden ABUpstream (inferred)114
AS6762SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.Upstream (inferred)54
AS9002RETN-AS RETN LimitedUpstream (inferred)36
AS30844LIQUID-AS Liquid Telecommunications LtdUpstream (inferred)25
AS137409GSLNETWORKS-AS-AP - GSL Networks Pty LTDUpstream (inferred)22

Neighbours seen next to AS12874 in public AS paths. These are not confirmed BGP sessions; peer IP addresses and locations are not published by these sources.

Public Peering Exchange Points (12)

IX Updates →
ExchangeLocationIPv4IPv6SpeedRS peerUpdated
AMS-IXAmsterdam, NL80.249.209.2432001:7f8:1::a501:2874:1100GNo
DE-CIX FrankfurtFrankfurt, DE80.81.194.102001:7f8::324a:0:1100GNo
Equinix MilanMilan, IT185.1.106.512001:7f8:c0::1:2874:1100GNo
Ge-DIXGenova, IT185.0.18.52001:7f8:144::510GNo
LINX LON1London, GB195.66.225.432001:7f8:4::324a:1100GNo
MINAP MilanMilan, IT185.1.114.342001:7f8:c5::a501:2874:1100GNo
MIX RomaRome, IT185.188.83.152001:7f8:101:14::15100GNo
MIX-ITMilan, IT217.29.66.462001:7f8:b:100:1d1:a5d1:2874:46200GNo
MIX-ITMilan, IT217.29.67.1612001:7f8:b:100:1d1:a5d1:2874:161400GNo
Namex RomeRome, IT193.201.28.162001:7f8:10::1:2874200GNo
TIXFlorence, IT193.42.140.17—10GNo
TOP-IXTurin, IT194.116.96.82001:7f8:23:ffff::1010GNo
VSIXPadova, IT185.1.115.32001:7f8:5f:ffff::310GNo

IX ports registered by AS12874 (self-reported by the network).

Interconnection Facilities (13)

FacilityCityCountry
Namex Bari DatacenterBariItaly
Open Hub MedCariniItaly
DATA4 Milan-Cornaredo - MIL1Cornaredo (MI)Italy
Liguria Digitale Data Center - WTCGenoaItaly
Equinix ML2 - Milan, SavonaMilanItaly
Equinix ML3 - Milan, BasiglioMilanItaly
MIX DC CALDERAMilanItaly
Retelit Avalon 1MilanItaly
VSIXPadovaItaly
Aruba IT3 - Milan PSPPonte San PietroItaly
Aruba IT4 - RomeRomeItaly
Namex Datacenter RomeRomeItaly
Vaultica Data Centers | MIL01SizianoItaly

Data centres where AS12874 says it can interconnect (self-reported).

IRR AS-SET and Peering Policy

IRR AS-SETAS-FASTWEB-GLOBAL
Member of AS-SETsSee IRR page
Peering policySelective
Multiple locationsNot Required
Ratio requirementNo
ContractPrivate Only
Traffic10-20Tbps
Traffic ratioMostly Inbound
Geographic scopeEurope
Max prefixes (IPv4 / IPv6)1500 / 150
Unicast / IPv6 / MulticastYes / Yes / No
Looking glassNot available
Route serverNot available

Contact Information (0)

No public contacts are registered for AS12874.

Only contacts the network has chosen to publish are shown.

Upstreams (56)

View all →
ASNameRelationshipPathsLast Seen
AS3303SWISSCOM Swisscom (Schweiz) AGUpstream (inferred)177
AS3356LEVEL3 - Level 3 Parent, LLCUpstream (inferred)147
AS1273CW - IDDQD-ASUpstream (inferred)146
AS1299TWELVE99 Arelion Sweden ABUpstream (inferred)114
AS6762SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.Upstream (inferred)54
AS9002RETN-AS RETN LimitedUpstream (inferred)36
AS30844LIQUID-AS Liquid Telecommunications LtdUpstream (inferred)25
AS137409GSLNETWORKS-AS-AP - GSL Networks Pty LTDUpstream (inferred)22
AS6461ZAYO-6461 - Zayo BandwidthUpstream (inferred)16
AS37497Network Platforms (PTY) LTD - Network Platforms (PTY) LTDUpstream (inferred)15
AS49544i3Dnet i3D.net B.VUpstream (inferred)15
AS3216SOVAM-AS PJSC "Vimpelcom"Upstream (inferred)10

Downstreams (211)

View all →
ASNameRelationshipPathsLast Seen
AS3242—Downstream (inferred)Inferred—
AS3275—Downstream (inferred)Inferred—
AS3573—Downstream (inferred)Inferred—
AS5397—Downstream (inferred)Inferred—
AS6831—Downstream (inferred)Inferred—
AS6836—Downstream (inferred)Inferred—
AS8884—Downstream (inferred)Inferred—
AS8978—Downstream (inferred)Inferred—
AS12481—Downstream (inferred)Inferred—
AS12650—Downstream (inferred)Inferred—
AS13018—Downstream (inferred)Inferred—
AS13253—Downstream (inferred)Inferred—

Registry and network details

Registered holderFASTWEB Fastweb SpA
RegisteredYes
Peering policySelective
IRR AS-setAS-FASTWEB-GLOBAL
Registry record last modified
MaintainersFASTWEB-MNT, RIPE-NCC-END-MNT
Internet exchanges12
Facilities13
Network profile updated

Data updated . See limitations.