Autonomous system
AS33879 FORTHS-PORTS-PLC
Unclassified RIPE
Summary
Forth Ports
business port logistics uk
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-PLCand registrantForth 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. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-30, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 256 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| GB | United Kingdom | 1 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS33879- Registry name
- FORTHS-PORTS-PLC
- Registrant
- FORPO-MNT
- Abuse contact
- it.helpdesk@forthports.co.uk
- Registered
- 2008-06-26
- Last changed
- 2018-09-04
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 1 with no ROA
- ROAs
- 0 authorising AS33879
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 1 naming AS33879
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 447 networks and 1,848 prefixes, as published 2026-10-31. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere