AS11960 — EMPRESA DE TELECOMUNICACIONES DE CUBA S.A. IXP CUBA

AS11960 announces 1 IPv4 prefixes covering 256 addresses and 1 IPv6 prefixes.

About this network

AS11960 is held by Empresa de Telecomunicaciones de Cuba S.A. (ETECSA), the Cuban state telecoms monopoly, and is the AS attached to IXP Cuba / NAP-ETECSA — the country's national exchange point. LACNIC lists it in Havana with contacts at [email protected].

What it's used for

Interconnection infrastructure, not customer service. RIS sees a single IPv4 /24 (200.0.16.0/24, 256 addresses) and one IPv6 /32, through four observed neighbours. ETECSA's subscriber traffic lives on its main AS, AS27725; this number carries the exchange and gateway function instead. The four neighbours are the point of the whole thing — a tiny address footprint attached to a disproportionate role in how a country reaches the rest of the internet.

Notable

This is deliberately not classified as hosting, eyeball or transit product space. An exchange-point AS holds peering-fabric and NAP infrastructure addresses; classifying 200.0.16.0/24 as though it served end users or servers would mislabel every address in it. RDAP on the prefix failed during collection, which is a gap in the evidence and not a clearance.

Interesting

Cuba's connectivity is unusually concentrated: one state carrier, one exchange, and a small number of international links. That makes an AS this small structurally significant in a way its 256 addresses cannot convey — the size of the block says nothing about the importance of the function.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 200.0.16.0/24
• 2001:13c8::/32

Upstream networks

• AS6762 TELECOM ITALIA SPARKLE S.p.A.
• AS23520 Columbus Networks USA, Inc.
• AS5511 Orange S.A.

Downstream networks

• AS27725 Empresa de Telecomunicaciones de Cuba, S.A.
• AS10569 Red CENIAInternet

Adjacent networks

• AS27725 Empresa de Telecomunicaciones de Cuba, S.A.
• AS5511 Orange S.A.
• AS23520 Columbus Networks USA, Inc.
• AS6762 TELECOM ITALIA SPARKLE S.p.A.
• AS10569 Red CENIAInternet

Routing security

• RPKI: 2 valid, 0 invalid and 0 not-found announcements; 4 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 11 route objects.
• Listed in as-sets: AS-CARATS-V6, AS-CUBADATA, AS-CUSTOMERS1, AS-ETECSA, AS-INTELSATUS, AS-NCI-CUST-1, AS-NEWCOM, AS-NWN-TRANSIT, AS-O3B-TX-US, AS-OPENTRANSIT, AS-PNAPMIA, AS11960:AS-IXPCUBA.