subnet.im

AS27744Tecoar SA

ArgentinaRegistryLACNIC

As of 10th November 2026, AS27744 (Tecoar SA), a network registered in Argentina with LACNIC, originates 8 IPv4 prefixes covering 2.8k addresses. By IPv4 address space that makes it the 22,787th-largest of the 80,723 networks we see originating IPv4, and the 283rd-largest of 1,080 in Argentina. It is seen behind 6 upstream networks, most often AS174 (Cogent Communications, LLC) and AS52361 (ARSAT - Empresa Argentina de Soluciones…), and in front of 3 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

8

IPv6 prefixes

0

IPv4 addresses

2.8k

IPv6 /64s

0

Upstream graph

The networks AS27744 is seen behind, one and two hops out, drawn from real AS paths.

AS27744Toward the internet core
Upstream graph for AS27744: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS27744Tecoar SAThis networkAS174Cogent Communicat…AS52294CABASE Camara Arg…AS52359CABASE Camara Arg…AS52361ARSAT - Empresa A…AS52375CABASE Camara Arg…AS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS6939Hurricane Electri…AS52376Camara Argentina …AS7195EdgeUnoAS22927Telefonica de Arg…

Networks observed one and two hops upstream of AS27744 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

17

adjacent networks

Upstreams
635%
Peers
847%
Downstreams
318%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS27744
NetworkCountryRelationshipPathsVantage pts
AS174Cogent Communications, LLCUSPeer36775
AS52361ARSAT - Empresa Argentina de Soluciones Satelitales S.A.ARPeer22876
AS52294CABASE Camara Arg de Base de Datos y Serv en LineaARPeer7575
AS52359CABASE Camara Arg de Base de Datos y Serv en LineaARPeer7575
AS52375CABASE Camara Arg de Base de Datos y Serv en LineaARPeer7575
AS6939Hurricane Electric LLCUSPeer66

Prefixes

The largest blocks AS27744 originates, widest first.

Largest prefixes originated by AS27744
PrefixAddressesVisibility
200.105.120.0/2351276/76
200.105.122.0/2351276/76
200.105.126.0/2351276/76
200.105.120.0/2425675/76
200.105.122.0/2425675/76
200.105.123.0/2425675/76
200.105.124.0/2425675/76
200.105.125.0/2425675/76

Routing health

How AS27744's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid100.0%8
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%8
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 8 prefixes

Recent changes

Announcements that started or stopped since 11th Oct 2026.

No announcement by AS27744 started or stopped in this period.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.