asn.dev

Observed topology

AS6663 TTI-NET Euroweb Romania S.R.L.

Unclassified RIPE NSP

Upstreams 31 carry this network
Downstreams 121 this network carries
Adjacent (IPv4) 182
Adjacent (IPv6) 70
Upstream graph Who carries AS6663, and who carries them, drawn as a map up to the transit-free core. 13 exchanges Where AS6663 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 31

Networks observed carrying traffic for AS6663: 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
AS2914NTT America, Inc.TransitIPv4 IPv6436
AS3356Level 3 Parent, LLCTransitIPv4432
AS5405Inter.link GmbHUnclassifiedIPv4 IPv6300
AS6939Hurricane Electric LLCTransitIPv4 IPv6300
AS1299Arelion Sweden ABTransitIPv4 IPv6292
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6146
AS9002RETN LimitedUnclassifiedIPv4 IPv698
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv650
AS24482SG.GSHostingIPv4 IPv650
AS29504Freenet Liberec, z.s.UnclassifiedIPv4 IPv650

All 31 upstreams →

Transit

Downstream networks

All 121

Networks for which AS6663 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS48955Internet Resources Management SRLUnclassifiedIPv41,809
AS3216PJSC "Vimpelcom"MobileIPv4 IPv61,440
AS41496TV SAT 2002 SRLResidentialIPv4 IPv61,124
AS203680Araz Tech LLCUnclassifiedIPv4 IPv6825
AS41710MIIT LLCUnclassifiedIPv4690
AS49468MAGIT'ST SRLUnclassifiedIPv4678
AS212192INTELI TECH DEVELOPMENT SRLUnclassifiedIPv4645
AS13335Cloudflare, Inc.HostingIPv4 IPv6586
AS41820New Information Systems PPUnclassifiedIPv4 IPv6494
AS211306Treadstone Business Development S.R.L.UnclassifiedIPv4477

All 121 downstreams →

Adjacency

Adjacent networks

All 188

Every AS seen directly next to AS6663 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS29049Delta Telecom LtdResidentialIPv4 IPv616,487
AS3216PJSC "Vimpelcom"MobileIPv4 IPv615,376
AS5405Inter.link GmbHUnclassifiedIPv4 IPv610,237
AS2914NTT America, Inc.TransitIPv4 IPv69,435
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv68,188
AS9121Turk Telekomunikasyon Anonim SirketiMobileIPv45,203
AS3356Level 3 Parent, LLCTransitIPv4 IPv64,527
AS42708Glesys Sweden ABUnclassifiedIPv4 IPv63,717
AS202297Skylon Solutions LimitedUnclassifiedIPv43,172
AS1299Arelion Sweden ABTransitIPv4 IPv62,960

All 188 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-10 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 71.97M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

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. 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.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.