asn.dev

Adjacent networks

AS12874 FASTWEB Fastweb SpA

Residential APNIC

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS12874 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3303Swisscom (Schweiz) AGResidentialIPv4 IPv618,876
AS3356Level 3 Parent, LLCTransitIPv4 IPv67,679
AS1299Arelion Sweden ABTransitIPv4 IPv66,843
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv62,639
AS44831Insiel- Informatica per il sistema degli enti locali S.p.AUnclassifiedIPv4 IPv62,543
AS9002RETN LimitedUnclassifiedIPv4 IPv62,231
AS25518Zucchetti SpaUnclassifiedIPv41,986
AS50673Serverius Holding B.V.UnclassifiedIPv4 IPv61,639
AS43976Poste Italiane S.p.A.UnclassifiedIPv41,070
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv6988
AS56655Gigahost ASUnclassifiedIPv4 IPv6988
AS42708Glesys Sweden ABUnclassifiedIPv4 IPv6916
AS6461Zayo BandwidthTransitIPv4 IPv6908
AS29312Comune di MilanoUnclassifiedIPv4890
AS8551Bezeq International Ltd.UnclassifiedIPv4859
AS3741Dimension DataUnclassifiedIPv4849
AS197075Active Network S.p.A.ResidentialIPv4 IPv6842
AS48135Leonardo S.p.A.UnclassifiedIPv4787
AS3216PJSC "Vimpelcom"MobileIPv4661
AS20942Intesa Sanpaolo S.p.A.UnclassifiedIPv4648
AS15584Informatica Alto Adige SpaUnclassifiedIPv4634
AS41160Amt Services srlUnclassifiedIPv4632
AS201565ETRURIA WI-FI S.R.L.UnclassifiedIPv4 IPv6620
AS21433Accenture UK LimitedUnclassifiedIPv4 IPv6619
AS25301Sr Net S.R.L.UnclassifiedIPv4604
AS196749BBANDA S.R.L.ResidentialIPv4 IPv6594
AS51580TIMENET SPAResidentialIPv4548
AS206655WI-GO SrlResidentialIPv4508
AS15887ENGINEERING INGEGNERIA INFORMATICA SPAUnclassifiedIPv4480
AS200409Tecnodata Trentina SrlResidentialIPv4 IPv6478
AS44512KONVERTO SPAUnclassifiedIPv4 IPv6469
AS33964Sogei Societa' Generale d' Informatica S.p.A.UnclassifiedIPv4 IPv6442
AS57144BCC SISTEMI INFORMATICI S.P.A.UnclassifiedIPv4431
AS42764Arpitel s.r.l.UnclassifiedIPv4426
AS197859E.S.I. S.n.c di Teofili Elisabetta e C.UnclassifiedIPv4420
AS48382Microdata Group SRLUnclassifiedIPv4419
AS1273IDDQD-ASBusinessIPv4 IPv6399
AS49535E-Mind SrlResidentialIPv4394
AS200583TINEXTA INFOCERT S.p.AUnclassifiedIPv4394
AS200424Alessandro Coratelli trading as CODEMAUnclassifiedIPv4 IPv6389
AS13253Intesa Sanpaolo S.p.A.UnclassifiedIPv4 IPv6385
AS47875Provincia di PadovaUnclassifiedIPv4383
AS202675Keliweb S.R.LUnclassifiedIPv4367
AS56754Foxtel SrlResidentialIPv4360
AS213241TECHIT.BE SRLResidentialIPv4 IPv6351
AS49265Cooperativa Sociale Galileo A.r.l.UnclassifiedIPv4347
AS196874Telenet S.r.l.UnclassifiedIPv4321
AS60460Aziende Italia S.r.l.UnclassifiedIPv4 IPv6313
AS3573Accenture LLPUnclassifiedIPv4 IPv6310
AS211396TANZARELLA DANIELE trading as DA.TA. NETUnclassifiedIPv4306

Adjacency is not the same as peering. Being next to each other in a path covers paid transit, settlement-free peering and customer connections alike, and routing data cannot distinguish them. Treat this as "these networks exchange routes", nothing more specific.

Derived from routing tables collected at 2026-11-14 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.46M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.