subnet.im

AS7303Telecom Argentina S.A.

ArgentinaRegistryLACNICTypeEyeball

As of 10th November 2026, AS7303 (Telecom Argentina S.A.), an access network registered in Argentina with LACNIC, originates 665 IPv4 prefixes covering 27.5M addresses and 99 IPv6 prefixes. By IPv4 address space that makes it the 21st-largest of the 80,733 networks we see originating IPv4, and the largest of 1,080 in Argentina. It is seen behind 7 upstream networks, most often AS22927 (Telefonica de Argentina) and AS7195 (EdgeUno), and in front of 223 downstream networks. 97% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 42% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

665

IPv6 prefixes

99

IPv4 addresses

27.5M

IPv6 /64s

17.7T

Upstream graph

The networks AS7303 is seen behind, one and two hops out, drawn from real AS paths.

AS7303Toward the internet core
Upstream graph for AS7303: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS7303Telecom Argentina…This networkAS3356Lumen (Level 3)AS6762Telecom Italia Sp…AS6939Hurricane Electri…AS7195EdgeUnoAS22927Telefonica de Arg…AS3549Lumen (fka. Globa…AS2914NTT America, Inc.AS20130Depaul UniversityAS32590Valve CorporationAS132337AxclusiveAS1299Arelion (fka. Tel…AS12956Telxius (Telefoni…

Networks observed one and two hops upstream of AS7303 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

482

adjacent networks

Upstreams
71%
Peers
25252%
Downstreams
22346%

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

Upstreams of AS7303
NetworkCountryRelationshipPathsVantage pts
AS22927Telefonica de ArgentinaARPeer107,077139
AS7195EdgeUnoCOPeer4,8094
AS6762Telecom Italia Sparkle (Seabone)ITPeer1,991136
AS3356Lumen (Level 3)USPeer1,400138
AS6939Hurricane Electric LLCUSPeer52018
AS3257GTT Communications Inc.USPeer45676
AS52376Camara Argentina de Internet CABASEARPeer4543

Prefixes

All 764

The largest blocks AS7303 originates, widest first.

Largest prefixes originated by AS7303
PrefixAddressesVisibility
181.0.0.0/121M75/76
181.80.0.0/121M75/76
181.96.0.0/121M75/76
181.8.0.0/13524k75/76
181.104.0.0/13524k75/76
190.224.0.0/13524k75/76
152.168.0.0/14262k76/76
181.4.0.0/14262k76/76
181.28.0.0/14262k76/76
181.96.0.0/14262k76/76

Routing health

How AS7303'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

  • Valid97.1%742
  • Invalid0.0%0
  • No ROA2.9%22

Propagation

  • Globally propagated90% of full-feed peers or more42.0%321
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%58.0%443

Prefix sizes

IPv4 — 665 prefixes

IPv6 — 99 prefixes

  • /2017.6T × /641.0%1
  • /2934.4B × /641.0%1
  • /324.3B × /646.1%6
  • /4016.8M × /643.0%3
  • /441M × /644.0%4
  • /4865.5k × /6484.8%84

Recent changes

Announcements that started or stopped since 12th Oct 2026.

38 announced and 39 withdrawn in all; the most recent are shown.

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