asn.dev

Observed topology

AS16552 DIGICERT

Hosting ARIN

Upstreams 61 carry this network
Downstreams 3 this network carries
Adjacent (IPv4) 58
Adjacent (IPv6) 42
Upstream graph Who carries AS16552, and who carries them, drawn as a map up to the transit-free core. 32 exchanges Where AS16552 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 61

Networks observed carrying traffic for AS16552: 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 IPv62,240
AS2914NTT America, Inc.TransitIPv4 IPv61,162
AS6939Hurricane Electric LLCTransitIPv4 IPv61,162
AS3257GTT Communications Inc.TransitIPv4 IPv6890
AS4637Telstra GlobalUnclassifiedIPv4 IPv6314
AS9498BHARTI Airtel Ltd.MobileIPv4 IPv6263
AS7195EDGEUNO S.A.SUnclassifiedIPv4 IPv6203
AS9002RETN LimitedUnclassifiedIPv4 IPv6172
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6143
AS24482SG.GSHostingIPv4 IPv6127

All 61 upstreams →

Transit

Downstream networks

inferred

Networks for which AS16552 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS12008Vercara, LLCHostingIPv4 IPv68,329
AS397215Vercara, LLCUnclassifiedIPv4 IPv641
AS397213Vercara, LLCUnclassifiedIPv4 IPv619

Adjacency

Adjacent networks

All 64

Every AS seen directly next to AS16552 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS12008Vercara, LLCHostingIPv4 IPv68,329
AS1299Arelion Sweden ABTransitIPv4 IPv64,212
AS2914NTT America, Inc.TransitIPv4 IPv62,272
AS6939Hurricane Electric LLCTransitIPv4 IPv61,580
AS3257GTT Communications Inc.TransitIPv4 IPv61,485
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6583
AS22652Videotron LteeResidentialIPv4 IPv6346
AS4637Telstra GlobalUnclassifiedIPv4 IPv6323
AS24482SG.GSHostingIPv4 IPv6296
AS9498BHARTI Airtel Ltd.MobileIPv4 IPv6263

All 64 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.