AS33879 — FORTHS-PORTS-PLC

AS33879 announces 1 IPv4 prefixes covering 256 addresses and 0 IPv6 prefixes.

About this network

FORTHS-PORTS-PLC is operated by Forth Ports Public Limited Company.

What it's used for

• The address space carries internal corporate infrastructure for a major UK port operator, as indicated by the netname FORTHS-PORTS-PLC and registrant Forth Ports Public Limited Company.
• The AS announces 256 IPv4 addresses within a single /24 prefix (91.208.3.0/24) and maintains 2 observed neighbours, a ratio consistent with a small, self-contained business network rather than a transit or access provider.

Notable

• The RDAP registrant matches the AS handle and the known corporate identity of Forth Ports, confirming the space is directly owned by the port operator.
• Forth Ports is one of the largest port operators in the UK, managing facilities including Tilbury, Grangemouth, Leith, Rosyth, Dundee, and Fife Ports.
• The inventory consists of a single contiguous IPv4 block with no announced IPv6 prefixes, reflecting a compact internal estate.

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

Announced prefixes

• 91.208.3.0/24

Upstream networks

• AS5089 Virgin Media Limited
• AS2856 British Telecommunications Limited

Adjacent networks

• AS5089 Virgin Media Limited
• AS2856 British Telecommunications Limited

Routing security

• RPKI: 0 valid, 0 invalid and 1 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 1 route objects.
• Listed in as-sets: AS-BTGB-CUST, AS-CABLEINET, AS-NTLI, AS-SET-ES-OWS-001, AS51202:AS-ALL.