asn.dev

Observed topology

AS19905 SECURITYSERVICES - Vercara, LLC

Hosting ARIN

Upstreams 7 carry this network
Downstreams 39 this network carries
Adjacent (IPv4) 46
Adjacent (IPv6) 10
Upstream graph Who carries AS19905, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS19905 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS19905: 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
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv62,944
AS2914NTT America, Inc.TransitIPv4 IPv62,243
AS3257GTT Communications Inc.TransitIPv4 IPv61,555
AS6461Zayo BandwidthTransitIPv4 IPv61,185
AS260GTT Americas, LLCUnclassifiedIPv4 IPv6628
AS4637Telstra GlobalUnclassifiedIPv4 IPv664
AS15830Equinix (EMEA) Acquisition Enterprises B.V.HostingIPv41

Transit

Downstream networks

All 39

Networks for which AS19905 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS15625ING Bank N.V.UnclassifiedIPv42,400
AS20311Valero Corporate ServicesUnclassifiedIPv41,860
AS11313Fannie MaeUnclassifiedIPv41,421
AS19524Comerica IncorporatedUnclassifiedIPv4969
AS10584TradeWeb, LLCUnclassifiedIPv4772
AS26848Principal Financial Group, Inc.UnclassifiedIPv4 IPv6710
AS13008Entain Services Austria GmbHHostingIPv4 IPv6622
AS22894Network Information Center MexicoUnclassifiedIPv4 IPv6596
AS397688BWIN.PARTY ENTERTAINMENT (NJ), LLCUnclassifiedIPv4574
AS209924MLB LimitedUnclassifiedIPv4360

All 39 downstreams →

Adjacency

Adjacent networks

All 46

Every AS seen directly next to AS19905 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv69,239
AS2914NTT America, Inc.TransitIPv4 IPv66,194
AS3257GTT Communications Inc.TransitIPv4 IPv64,822
AS15625ING Bank N.V.UnclassifiedIPv42,400
AS20311Valero Corporate ServicesUnclassifiedIPv41,860
AS11313Fannie MaeUnclassifiedIPv41,421
AS6461Zayo BandwidthTransitIPv4 IPv61,185
AS19524Comerica IncorporatedUnclassifiedIPv4969
AS10584TradeWeb, LLCUnclassifiedIPv4772
AS26848Principal Financial Group, Inc.UnclassifiedIPv4 IPv6710

All 46 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-11 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 73.24M 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.