subnet.im

AS27851COOPERATIVA ELECTRICA Y DE SERVICIOS PUBLICOS LUJANENSE LIMITADA

ArgentinaRegistryLACNIC

As of 22nd October 2026, AS27851 (COOPERATIVA ELECTRICA Y DE SERVICIOS…), a network registered in Argentina with LACNIC, originates 23 IPv4 prefixes covering 10.2k addresses and 5 IPv6 prefixes. By IPv4 address space that makes it the 10,318th-largest of the 79,663 networks we see originating IPv4, and the 100th-largest of 1,069 in Argentina. It is seen behind 3 upstream networks, most often AS7049 (Silica Networks Argentina S.A.) and AS6939 (Hurricane Electric LLC), and in front of 3 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 14% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

23

IPv6 prefixes

5

IPv4 addresses

10.2k

IPv6 /64s

4.3B

Upstream graph

The networks AS27851 is seen behind, one and two hops out, drawn from real AS paths.

AS27851Toward the internet core
Upstream graph for AS27851: 9 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS27851COOPERATIVA ELECT…This networkAS6939Hurricane Electri…AS7049Silica Networks A…AS22927Telefonica de Arg…AS20130Depaul UniversityAS132337AxclusiveAS174Cogent Communicat…AS7195EdgeUnoAS7303Telecom Argentina…AS12956Telxius (Telefoni…

Networks observed one and two hops upstream of AS27851 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

16

adjacent networks

Upstreams
319%
Peers
1063%
Downstreams
319%

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

Upstreams of AS27851
NetworkCountryRelationshipPathsVantage pts
AS7049Silica Networks Argentina S.A.ARPeer1,057127
AS6939Hurricane Electric LLCUSPeer43135
AS22927Telefonica de ArgentinaARPeer16135

Prefixes

All 28

The largest blocks AS27851 originates, widest first.

Largest prefixes originated by AS27851
PrefixAddressesVisibility
200.81.152.0/212k77/77
200.110.184.0/212k77/77
170.231.36.0/221k77/77
170.231.36.0/2425612/77
170.231.37.0/2425612/77
170.231.38.0/2425612/77
170.231.39.0/2425612/77
200.81.152.0/2425612/77
200.81.153.0/2425612/77
200.81.154.0/2425612/77

Routing health

How AS27851'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%28
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more14.3%4
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%85.7%24

Prefix sizes

IPv4 — 23 prefixes

IPv6 — 5 prefixes

  • /324.3B × /6420.0%1
  • /4016.8M × /6420.0%1
  • /4865.5k × /6460.0%3

Recent changes

Announcements that started or stopped since 22nd Sept 2026.

No announcement by AS27851 started or stopped in this period.

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