asn.dev

Observed topology

AS1764 NEXTLAYER-AS

Unclassified RIPE NSP

Upstreams 33 carry this network
Downstreams 331 this network carries
Adjacent (IPv4) 383
Adjacent (IPv6) 231
Upstream graph Who carries AS1764, and who carries them, drawn as a map up to the transit-free core. 8 exchanges Where AS1764 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 33

Networks observed carrying traffic for AS1764: 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
AS6939Hurricane Electric LLCTransitIPv4 IPv6680
AS1299Arelion Sweden ABTransitIPv4 IPv6588
AS2914NTT America, Inc.TransitIPv4493
AS3356Level 3 Parent, LLCTransitIPv4492
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6223
AS174Cogent Communications, LLCTransitIPv4 IPv6220
AS3257GTT Communications Inc.TransitIPv4212
AS9002RETN LimitedUnclassifiedIPv4212
AS1836green.ch AGResidentialIPv4 IPv683
AS24482SG.GSHostingIPv4 IPv683

All 33 upstreams →

Transit

Downstream networks

All 331

Networks for which AS1764 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS5403APA-IT Informations Technologie G.m.b.HHostingIPv4 IPv62,913
AS9009M247 Europe SRLHostingIPv4 IPv62,294
AS174Cogent Communications, LLCTransitIPv4 IPv62,093
AS2914NTT America, Inc.TransitIPv4 IPv61,654
AS3257GTT Communications Inc.TransitIPv4 IPv61,476
AS4134No.31,Jin-rong StreetResidentialIPv4 IPv61,272
AS25255Hutchison Drei Austria GmbHResidentialIPv4 IPv61,048
AS3356Level 3 Parent, LLCTransitIPv4 IPv6965
AS44133IPAX GmbHUnclassifiedIPv4 IPv6959
AS28771Flughafen Wien AktiengesellschaftUnclassifiedIPv4 IPv6701

All 331 downstreams →

Adjacency

Adjacent networks

All 383

Every AS seen directly next to AS1764 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv6316,416
AS3356Level 3 Parent, LLCTransitIPv4 IPv6104,343
AS174Cogent Communications, LLCTransitIPv4 IPv676,520
AS2914NTT America, Inc.TransitIPv4 IPv663,445
AS6461Zayo BandwidthTransitIPv4 IPv623,386
AS4134No.31,Jin-rong StreetResidentialIPv4 IPv623,288
AS3257GTT Communications Inc.TransitIPv4 IPv616,370
AS25255Hutchison Drei Austria GmbHResidentialIPv4 IPv69,335
AS6939Hurricane Electric LLCTransitIPv4 IPv67,732
AS1299Arelion Sweden ABTransitIPv4 IPv65,494

All 383 adjacent →

Provenance

Where this comes from

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.

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.