Autonomous system
AS61231 NEOS-NETWORKS
Unclassified RIPE
Summary
Neos Networks
business telecoms fibre nsp
NEOS-NETWORKS is operated by Neos Networks Limited.
What it's used for
- The address space carries business connectivity traffic, with netnames
Neos_NetworksandUK-NEOSNETWORKS-20121231identifying the operator's own infrastructure. - 33024 IPv4 addresses are announced across 14 prefixes, peering with 115 neighbours, a ratio consistent with a national business network provider rather than a transit hub.
- Traffic consists of high-capacity fibre connections for Critical National Infrastructure and enterprise clients, reflecting the operator's role as a B2B telecoms provider.
Notable
- Registrants for the majority of prefixes are
Neos Networks Limited, while several blocks in the 155.136.0.0/16 range retain the netnameUK-NATWEST-155-136-0-0-16, indicating legacy address space from a previous owner. - The operator rebranded from SSE Enterprise Telecoms to Neos Networks as part of a business transformation that began with a 2019 investment by Infracapital.
- The inventory is dominated by the 161.12.0.0/16 block, subdivided into multiple /22 and /23 prefixes, alongside smaller allocations in 155.136.0.0/16 and 185.14.0.0/16.
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
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| LINX LON1 | London, United Kingdom | 195.66.227.242 |
Transit providers
21 upstream, 33 downstream and 75 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 14 prefixes · 33.02K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| GB | United Kingdom | 15 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS61231- Registry name
- Neos-Networks
- Registrant
- lir-uk-neosnetworks-1-MNT
- Abuse contact
- ethernet.tier3@neosnetworks.com
- Registered
- 2012-12-28
- Last changed
- 2026-09-10
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 9 with no ROA
- ROAs
- 1 authorising AS61231
- ASPA
- no ASPA record
- IRR
- 100% registered · 9 of 9 announcements
- Route objects
- 12 naming AS61231
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 1,771 prefixes, as published 2026-10-15. 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