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AS263756LINKUP INTERNET SRL

ArgentinaRegistryLACNIC

As of 23rd October 2026, AS263756 (LINKUP INTERNET SRL), a network registered in Argentina with LACNIC, originates 18 IPv4 prefixes covering 6.1k addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 13,894th-largest of the 79,666 networks we see originating IPv4, and the 153rd-largest of 1,068 in Argentina. It is seen behind 5 upstream networks, most often AS174 (Cogent Communications, LLC) and AS3356 (Lumen (Level 3)), and in front of 1 downstream network. 70% of its announcements have 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

18

IPv6 prefixes

2

IPv4 addresses

6.1k

IPv6 /64s

131k

Upstream graph

The networks AS263756 is seen behind, one and two hops out, drawn from real AS paths.

AS263756Toward the internet core
Upstream graph for AS263756: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS263756LINKUP INTERNET S…This networkAS174Cogent Communicat…AS3356Lumen (Level 3)AS6939Hurricane Electri…AS27747Telecentro S.A.AS52468UFINET PANAMA S.A.AS151326DCConnect Communi…AS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS1299Arelion (fka. Tel…AS20130Depaul UniversityAS6762Telecom Italia Sp…AS22356Durand do Brasil …

Networks observed one and two hops upstream of AS263756 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
531%
Peers
1063%
Downstreams
16%

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

Upstreams of AS263756
NetworkCountryRelationshipPathsVantage pts
AS174Cogent Communications, LLCUSPeer674135
AS3356Lumen (Level 3)USPeer45777
AS27747Telecentro S.A.ARPeer27077
AS52468UFINET PANAMA S.A.PAPeer7777
AS6939Hurricane Electric LLCUSPeer2310

Prefixes

The largest blocks AS263756 originates, widest first.

Largest prefixes originated by AS263756
PrefixAddressesVisibility
138.204.40.0/221k76/77
206.85.16.0/221k77/77
8.243.13.0/2425677/77
8.243.14.0/2425677/77
8.243.17.0/2425677/77
8.243.143.0/2425677/77
45.188.212.0/2425677/77
45.188.213.0/2425676/77
45.188.214.0/2425676/77
45.188.215.0/2425676/77

Routing health

How AS263756'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

  • Valid70.0%14
  • Invalid0.0%0
  • No ROA30.0%6

Propagation

  • Globally propagated90% of full-feed peers or more100.0%20
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 18 prefixes

IPv6 — 2 prefixes

  • /4865.5k × /64100.0%2

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

No announcement by AS263756 started or stopped in this period.

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