Autonomous system
AS31367 NEO-CUST
Unclassified RIPE
Summary
Zayo Infrastructure France
transit infrastructure leased france
NEO-CUST is the AS handle for Zayo Infrastructure France SA, a Pan-European fibre infrastructure operator.
What it's used for
- The address space carries diverse corporate and institutional tenants, including the Organisation for Economic Co-operation and Development (netname
FR-OECD-20070813), Saint-Gobain (netnameSGT-LEG), and Lagardère Travel Retail France (netnameFR-LTRF-20210212). - With 4608 IPv4 addresses across 10 prefixes and only 3 observed neighbours, the low neighbour-to-address ratio indicates a transit or infrastructure role rather than an access network.
Notable
- Registrants vary significantly from the announcer, listing entities such as the OECD, Saint-Gobain, and Arrow ECS GmbH, which suggests the AS hosts leased or customer-specific address space.
- Zayo Infrastructure France SA operates as part of the Zayo Europe network, providing international network services and connectivity solutions.
- The inventory consists of 10 IPv4 prefixes with no IPv6 prefixes announced, reflecting a mixed corporate estate with varied block sizes.
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 2026-10-16, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 10 prefixes · 4.61K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| FR | France | 10 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS31367- Registry name
- NEO-CUST
- Registrant
- AS8218-MNT
- Abuse contact
- abuse@zayo.com
- Registered
- 2004-04-27
- Last changed
- 2018-09-04
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 27% valid · 4 valid, 11 with no ROA
- ROAs
- 9 authorising AS31367
- ASPA
- no ASPA record
- IRR
- 100% registered · 15 of 15 announcements
- Route objects
- 16 naming AS31367
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: 442 networks and 1,783 prefixes, as published 2026-10-17. 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