asn.dev

Upstream networks

AS12874 FASTWEB

Residential APNIC

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS12874: the AS immediately before it in a routing path. Ranked by how many paths showed the relationship, which reflects how widely it is used, not how much traffic crosses it.

ASNetworkTypeFamiliesPaths seen
AS3303Swisscom (Schweiz) AGResidentialIPv4 IPv62,238
AS1299Arelion Sweden ABTransitIPv4 IPv6832
AS3356Level 3 Parent, LLCTransitIPv4 IPv6746
AS9002RETN LimitedUnclassifiedIPv4 IPv6510
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6343
AS1273IDDQD-ASBusinessIPv4 IPv6315
AS6461Zayo BandwidthTransitIPv4264
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4260
AS50673Serverius Holding B.V.UnclassifiedIPv4 IPv6207
AS6939Hurricane Electric LLCTransitIPv4175
AS29075IELO-LIAZO SERVICES SASUnclassifiedIPv4 IPv6119
AS42708Glesys ABUnclassifiedIPv4 IPv6119
AS56655Gigahost ASUnclassifiedIPv4 IPv6119
AS3216PJSC "Vimpelcom"MobileIPv4101
AS8434Telenor Sverige ABResidentialIPv4101
AS3741Dimension DataUnclassifiedIPv4100
AS13030Init7 (Switzerland) Ltd.HostingIPv618
AS17639Converge ICT Solutions Inc.UnclassifiedIPv618
AS24482SG.GSHostingIPv618
AS37721Virtual Technologies & SolutionsResidentialIPv618
AS48185team.blue NVUnclassifiedIPv618
AS48362Stadtwerke FeldkirchResidentialIPv618
AS50300CustodianDC LimitedUnclassifiedIPv618
AS213241TECHIT.BE SRLResidentialIPv618
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbHUnclassifiedIPv413

Inferred from path position, not from any declaration by either party. A network appearing here is carrying these routes; whether that is a paid transit arrangement, a backup, or something else is not something routing data can tell you.

Derived from routing tables collected at 2026-10-17 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.18M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.