AS13771 — DIGICEL-CAYMAN

AS13771 announces 4 IPv4 prefixes covering 2,048 addresses and 1 IPv6 prefixes.

About this network

The block named core is registered to the operator's sibling in another country.

What it's used for

• An island mobile and internet operator. 2,048 addresses across four IPv4 prefixes, the IPv6 block 2602:fb4d::/36, and two observed BGP neighbours.

Notable

• 66.54.120.0/22 is netname NET-DIGI-CORE-01, registered to the group's Jamaican company.
• The other three blocks are registered to the Cayman company that holds the AS.
• Two of those are netname NET-66-249-152-0 and NET-66-249-154-0, built from their own addresses.
• The remaining one is netname DIGICEL-CAYMAN, the same string as the AS handle.
• Twelve addresses were queried for reverse DNS and none returned a name.

Interesting

• A block labelled as core belonging to a different national company is how a regional group runs shared infrastructure. The equipment that carries traffic for several islands is registered once, where the group's engineering sits, and announced from wherever it is needed.
• Three naming conventions across four blocks, from a network this small, means each block was requested separately and nobody reconciled the labels afterwards.
• A /36 of IPv6 against two thousand IPv4 addresses is the ratio a mobile operator ends up with, since handsets need addresses in a quantity that IPv4 was never going to supply.

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

Announced prefixes

• 66.54.120.0/22
• 66.54.124.0/24
• 66.249.152.0/23
• 66.249.154.0/24
• 2602:fb4d::/36

Upstream networks

• AS33576 Digicel Jamaica

Adjacent networks

• AS33576 Digicel Jamaica