asn.dev

Observed topology

AS27988 AS27988 - Servicios y Telecomunicaciones S.A.

Residential LACNIC Content

Upstreams 6 carry this network
Downstreams 26 this network carries
Adjacent (IPv4) 32
Adjacent (IPv6) 19
Upstream graph Who carries AS27988, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS27988 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS27988: 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
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv6500
AS6939Hurricane Electric LLCTransitIPv4 IPv6240
AS6057Administracion Nacional de TelecomunicacionesResidentialIPv4 IPv6205
AS174Cogent Communications, LLCTransitIPv4 IPv6163
AS7049Silica Networks Argentina S.A.UnclassifiedIPv4134
AS7303Telecom Argentina S.A.MobileIPv4 IPv671

Transit

Downstream networks

All 26

Networks for which AS27988 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS263777COOPERATIVA TELEFONICA Y OSPA DE TOSTADO LDA.UnclassifiedIPv4904
AS264797Cablenet S.A.UnclassifiedIPv4327
AS265715LLAMADAIP S.R.L.ResidentialIPv4 IPv6301
AS267870COLMAN JONATAN DARIOUnclassifiedIPv4 IPv6276
AS265835GODOY LUIS ALBERTOUnclassifiedIPv4241
AS271949AX INTERNET SAUnclassifiedIPv4 IPv6241
AS271784ACCESS AIR SOCIEDAD SIMPLEUnclassifiedIPv4 IPv6216
AS263715EMPRESA DE SERVICIOS Y APLICACIONES TECNOLOGICAS SRLUnclassifiedIPv4192
AS273088SIGOT ALEXIS RAUL (SPEED INTERNET)UnclassifiedIPv4180
AS267766CONNFLEX SRLResidentialIPv4 IPv6137

All 26 downstreams →

Adjacency

Adjacent networks

All 34

Every AS seen directly next to AS27988 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv61,947
AS6057Administracion Nacional de TelecomunicacionesResidentialIPv4 IPv61,440
AS263777COOPERATIVA TELEFONICA Y OSPA DE TOSTADO LDA.UnclassifiedIPv4904
AS174Cogent Communications, LLCTransitIPv4 IPv6865
AS6939Hurricane Electric LLCTransitIPv4 IPv6644
AS7049Silica Networks Argentina S.A.UnclassifiedIPv4 IPv6370
AS264797Cablenet S.A.UnclassifiedIPv4327
AS265715LLAMADAIP S.R.L.ResidentialIPv4 IPv6301
AS267870COLMAN JONATAN DARIOUnclassifiedIPv4 IPv6276
AS265835GODOY LUIS ALBERTOUnclassifiedIPv4241

All 34 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-13 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.40M 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.