asn.dev

Observed topology

AS210021 DIL

Residential RIPE Cable/DSL/ISP

Upstreams 14 carry this network
Downstreams 15 this network carries
Adjacent (IPv4) 33
Adjacent (IPv6) 19
Upstream graph Who carries AS210021, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS210021 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 14

Networks observed carrying traffic for AS210021: 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
AS1299Arelion Sweden ABTransitIPv4 IPv6273
AS59796StormWall s.r.o.UnclassifiedIPv4232
AS213642Coretech Bilisim Hizmetleri Sanayi Ticaret Limited SirketiUnclassifiedIPv4212
AS12735TurkNet Iletisim Hizmetleri A.S.UnclassifiedIPv4155
AS174Cogent Communications, LLCTransitIPv4129
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv491
AS6453TATA COMMUNICATIONS AMERICA INCTransitIPv4 IPv684
AS6939Hurricane Electric LLCTransitIPv456
AS3356Level 3 Parent, LLCTransitIPv413
AS43298Storm Networks LLCUnclassifiedIPv44

All 14 upstreams →

Transit

Downstream networks

All 15

Networks for which AS210021 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS59625Korek Telecom Company for Communications LLCUnclassifiedIPv4 IPv6980
AS215597ASIACELL COMMUNICATIONS PJSCUnclassifiedIPv4 IPv6355
AS210413SmartLink for Internet Services LTDUnclassifiedIPv4300
AS215160Wellow Net Company for Internet Services LTDUnclassifiedIPv4 IPv6273
AS213098Pirmam For Information Technology Services LtdUnclassifiedIPv4240
AS14789Cloudflare, Inc.UnclassifiedIPv4 IPv691
AS211513Al Lawn Al Akhdar International Company for Communications and Information Technology Ltd.UnclassifiedIPv4 IPv691
AS211181Civilisation Information Technology, communication and internet services Co., LTDUnclassifiedIPv461
AS200654Tornet General Trading and Communication Services LLCUnclassifiedIPv459
AS207097Online Company for Technological Information, Supply of Electronic Equipment and Internet Services Through Wifi Ltd.UnclassifiedIPv459

All 15 downstreams →

Adjacency

Adjacent networks

All 36

Every AS seen directly next to AS210021 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS211513Al Lawn Al Akhdar International Company for Communications and Information Technology Ltd.UnclassifiedIPv4 IPv611,082
AS1299Arelion Sweden ABTransitIPv4 IPv65,523
AS3356Level 3 Parent, LLCTransitIPv4 IPv64,124
AS208293AlSalam State CompanyUnclassifiedIPv4 IPv63,870
AS174Cogent Communications, LLCTransitIPv4 IPv62,929
AS6939Hurricane Electric LLCTransitIPv4 IPv62,649
AS6453TATA COMMUNICATIONS AMERICA INCTransitIPv4 IPv61,443
AS59625Korek Telecom Company for Communications LLCUnclassifiedIPv4 IPv6980
AS211181Civilisation Information Technology, communication and internet services Co., LTDUnclassifiedIPv4 IPv6601
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4486

All 36 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-26 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.14M 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.