Landing Point · BR Brazil
| Cable | Status |
|---|---|
| Malbec | Active |
RTT measurements to this landing point from 2026-04-13 through 2026-05-24 — live ICMP round-trip time via RIPE Atlas probes. Recomputed daily. ✓ No anomalies detected in the monitored period.
| Probe | Location | Samples | Avg |
|---|---|---|---|
| #1014473 own probe | Minsk BY | 3 | 271.7 ms |
| #1014589 own probe | Almaty KZ | 3 | 313.5 ms |
| #1014597 own probe | Tbilisi GE | 3 | 289.1 ms |
| #1014969 own probe | Jerusalem IL | 3 | 283.1 ms |
| #1015313 own probe | Sevastopol UA | 2 | 301.8 ms |
| #1015523 own probe | Moscow RU | 2 | 256.6 ms |
Porto Alegre is the capital of the Brazilian state of Rio Grande do Sul and sits at the southern end of Brazil's Atlantic coastline, making it the country's southernmost submarine cable landing point. One submarine cable lands here: the Malbec system, which connects Porto Alegre to Argentina. As the southernmost state capital in Brazil, Porto Alegre's position on the submarine cable map reflects its geographic role as a gateway between southern Brazil and its Argentine neighbours to the south and west.
The Malbec cable establishes a regional corridor linking Brazil and Argentina, supporting connectivity between two of South America's largest economies along a southern route that is geographically distinct from the longer, intercontinental cables that serve Brazil's more northerly landing points. With a single cable landing, Porto Alegre functions as a focused terminus rather than a multi-cable hub.
Malbec is a submarine cable system with a length of 2,880 km, which entered service in 2021. The cable connects landing points in Brazil and Argentina, making it a regional South American system. Porto Alegre serves as the Brazilian terminus of the Malbec cable, linking the city directly into the bilateral connectivity corridor between these two neighbouring countries.
Within Brazil's submarine cable infrastructure — which encompasses 22 cables across 64 landing points — Porto Alegre hosts one cable and ranks in the top 81 percent of Brazilian landing points by cable count. It sits well behind the country's major cable hubs: Fortaleza leads with 10 cables, followed by Rio de Janeiro with 8, Santos with 5, and Praia Grande and Salvador each with 3. Porto Alegre's single-cable profile aligns it more closely with smaller or more specialised landing points across the country.
Porto Alegre's role in the submarine cable graph is that of a single-cable terminus serving a regional, bilateral corridor between Brazil and Argentina. The Malbec system, at 2,880 km, is shorter than Brazil's average cable length of 4,840 km, reflecting its intra-South American scope rather than an intercontinental reach. Porto Alegre does not duplicate the long-haul intercontinental connectivity concentrated at Fortaleza or Rio de Janeiro; instead, it anchors a distinct southern route.
As the only submarine cable landing point in Brazil's southernmost state, Porto Alegre's presence in the regional submarine cable graph ensures that southern Brazil has a direct fibre connection to Argentina, offering a geographically separate path from the cable corridors concentrated along the country's northeastern and southeastern coast.
View actual submarine cable routing from Porto Alegre, Brazil — with backbone nodes, distance calculations, and latency estimates
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