AS7303Telecom Argentina S.A.
ArgentinaRegistryLACNICTypeEyeballAs of 26th September 2026, AS7303 (Telecom Argentina S.A.), an access network registered in Argentina with LACNIC, originates 669 IPv4 prefixes covering 27.4M addresses and 99 IPv6 prefixes. By IPv4 address space that makes it the 21st-largest of the 79,516 networks we see originating IPv4, and the largest of 1,070 in Argentina. It is seen behind 7 upstream networks, most often AS22927 (Telefonica de Argentina) and AS7195 (EdgeUno), and in front of 221 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
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS7303 is seen behind, one and two hops out, drawn from real AS paths.
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
480
adjacent networks
- Upstreams
- 71%
- Peers
- 25253%
- Downstreams
- 22146%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS22927Telefonica de Argentina | AR | Peer | 117,397 | 145 |
| AS7195EdgeUno |  CO | Peer | 4,656 | 4 |
| AS6762Telecom Italia Sparkle (Seabone) |  IT | Peer | 1,996 | 144 |
| AS3356Lumen (Level 3) |  US | Peer | 1,295 | 145 |
| AS6939Hurricane Electric LLC | US | Peer | 549 | 19 |
| AS3257GTT Communications Inc. | US | Peer | 486 | 81 |
| AS52376Camara Argentina de Internet CABASE | AR | Peer | 50 | 47 |
Prefixes
All 768The largest blocks AS7303 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 181.0.0.0/12 | 1M | 80/81 |
| 181.80.0.0/12 | 1M | 80/81 |
| 181.96.0.0/12 | 1M | 80/81 |
| 181.8.0.0/13 | 524k | 80/81 |
| 181.104.0.0/13 | 524k | 80/81 |
| 190.224.0.0/13 | 524k | 80/81 |
| 152.168.0.0/14 | 262k | 81/81 |
| 181.4.0.0/14 | 262k | 81/81 |
| 181.28.0.0/14 | 262k | 81/81 |
| 181.96.0.0/14 | 262k | 81/81 |
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%746
- Invalid0.0%0
- No ROA2.9%22
Propagation
- Globally propagated90% of full-feed peers or more41.8%321
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%58.2%447
Prefix sizes
IPv4 — 669 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 28th Aug 2026.
- Announced181.13.10.0/2422nd Sept 2026
- Announced181.13.31.0/2422nd Sept 2026
- Announced181.7.0.0/1622nd Sept 2026
- Announced190.136.49.0/2422nd Sept 2026
- Withdrawn181.105.232.0/2421st Sept 2026
- Withdrawn181.80.26.0/2421st Sept 2026
- Withdrawn181.80.27.0/2421st Sept 2026
- Withdrawn181.80.28.0/2421st Sept 2026
- Withdrawn181.80.29.0/2421st Sept 2026
- Withdrawn181.96.125.0/2421st Sept 2026
- Withdrawn190.136.30.0/2421st Sept 2026
- Withdrawn190.136.31.0/2421st Sept 2026
4 announced and 11 withdrawn in all; the most recent are shown.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.