Autonomous system
AS204731 fibrenest FIBRENEST LIMITED
Residential RIPE Cable/DSL/ISP
Summary
FibreNest
residential isp uk fibre
The AS handle FIBRENEST is held by FibreNest Limited.
What it's used for
- The address space carries residential and business internet access, evidenced by the netname
UK-FIBRENEST1-20180117and the operator's provision of ultrafast fibre connectivity to new homes and businesses in the UK. - The AS announces 7,168 IPv4 addresses across 4 prefixes and 9 IPv6 prefixes, with 11 observed neighbours; this ratio indicates an access network rather than a transit provider.
- Traffic from this AS consists of subscriber eyeballs using fibre-based broadband services, including WiFi extenders and speed guarantee add-ons for domestic properties.
Notable
- Registrants for the majority of the announced IPv4 space are Cogent Communications, LLC, with netnames
COGENT-AandCOGENT-154-62-16, while the 185.241.224.0/22 block is registered to Network Engineering and FIBRENEST LIMITED. - The address inventory includes a large /20 block from Cogent alongside smaller /22 blocks, suggesting a mix of leased transit space and directly allocated fibre infrastructure.
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 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| London Network Access Point | London, United Kingdom | 5.57.81.245 |
| LINX Manchester | Manchester, United Kingdom | 195.66.244.76 |
Transit providers
9 upstream, 0 downstream and 16 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 2026-11-03, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 4 prefixes · 7.17K addresses IPv6 12 prefixes
| Country | Name | Prefixes |
|---|---|---|
| GB | United Kingdom | 16 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS204731- Registry name
- fibrenest
- Registrant
- lir-uk-fibrenest1-1-MNT
- Abuse contact
- abuse@fibrenest.com
- Registered
- 2018-01-18
- Last changed
- 2026-02-10
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- fibrenest
- Network type
- Cable/DSL/ISP
- Scope
- Regional
- Traffic ratio
- Mostly Inbound
- Peering policy
- Open
- IRR as-set
AS204731- Present at
- 2 exchanges
- Facilities
- 2 facilities
- Website
- https://fibrenest.com/
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 100% valid · 27 valid, 0 with no ROA
- ROAs
- 26 authorising AS204731
- ASPA
- no ASPA record
- IRR
- 100% registered · 27 of 27 announcements
- Route objects
- 24 naming AS204731
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
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: 451 networks and 1,853 prefixes, as published 2026-11-04. 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