Skip to content
KYNEXBGP Toolkit
Node4 Ltd logo

AS31727

Node4 Ltd

United Kingdom (GB)

ASN Information

AS NumberAS31727
AS NameNODE4-AS
OrganizationNODE4-AS Node4 Limited
Also known asNot available
CountryUnited Kingdom (GB)
RegistryRIPE NCC
ASN TypeCable/DSL/ISP
Last Seen
Announcement Count145
IPv4 Prefix Count143
IPv6 Prefix Count2
RPKI StatusValid ×2NotFound ×47Unknown (could not be determined) ×1
IRR RecordsView IRR route objects
Websitehttp://www.node4.co.uk ↗

AS Path to AS31727

  1. 58511ANYCAST-GLOBAL-BACKBONE - Anycast Global Backbone
  2. 31727Origin

Most common path, seen 20× in route collector data, latest at a collector in Eugene, OR (2026-10-23 12:37:32 UTC). Prepends collapsed.

Route Collectors (Visibility)

Sydney: 11 peer session(s)São Paulo: 17 peer session(s)Johannesburg: 19 peer session(s)Singapore: 22 peer session(s)Amsterdam: 24 peer session(s)London: 33 peer session(s)Eugene, OR: 55 peer session(s)
High (10+ peers)Medium (3–9)Low (1–2)

Approximate route collector locations, coloured by peer sessions carrying this AS's routes.

Announced Prefixes (145)

View All →
PrefixFamilyRPKILast Seen
5.77.39.0/24IPv4NotFoundNot looked up yet
5.77.55.0/24IPv4NotFoundNot looked up yet
5.77.62.0/23IPv4NotFoundNot looked up yet
46.175.50.0/24IPv4ValidNot looked up yet
46.175.51.0/24IPv4ValidNot looked up yet
46.231.184.0/21IPv4NotFoundNot looked up yet
46.231.185.0/24IPv4NotFoundNot looked up yet
46.231.187.0/24IPv4NotFoundNot looked up yet

Peers (102)

View All →
ASNameRelationshipPathsLast Seen
AS3257GTT-BACKBONE GTT Communications Inc.Upstream (inferred)424
AS6939HURRICANE - Hurricane Electric LLCUpstream (inferred)35
AS6461ZAYO-6461 - Zayo BandwidthUpstream (inferred)25
AS30844LIQUID-AS Liquid Telecommunications LtdUpstream (inferred)25
AS58511ANYCAST-GLOBAL-BACKBONE - Anycast Global BackboneUpstream (inferred)20
AS137409GSLNETWORKS-AS-AP - GSL Networks Pty LTDUpstream (inferred)20
AS2914NTT-DATA-2914 - NTT America, Inc.Upstream (inferred)16
AS37468Angola Cables - Angola CablesUpstream (inferred)16

Neighbours seen next to AS31727 in public AS paths. These are not confirmed BGP sessions; peer IP addresses and locations are not published by these sources.

Public Peering Exchange Points (2)

IX Updates →
ExchangeLocationIPv4IPv6SpeedRS peerUpdated
LINX LON1London, GB195.66.224.1352001:7f8:4::7bef:150GNo
LINX ManchesterManchester, GB195.66.244.342001:7f8:4:2::7bef:150GNo

IX ports registered by AS31727 (self-reported by the network).

Interconnection Facilities (4)

FacilityCityCountry
Global Switch London EastLondonUnited Kingdom
Telehouse - London (Docklands North)LondonUnited Kingdom
Equinix MA1 - Manchester, Williams/KilburnManchesterUnited Kingdom
Equinix LD5 - London, SloughSloughUnited Kingdom

Data centres where AS31727 says it can interconnect (self-reported).

IRR AS-SET and Peering Policy

IRR AS-SETAS-NODE4
Member of AS-SETsSee IRR page
Peering policyOpen
Multiple locationsNot Required
Ratio requirementNo
ContractNot Required
Traffic10-20Gbps
Traffic ratioMostly Outbound
Geographic scopeEurope
Max prefixes (IPv4 / IPv6)150 / 25
Unicast / IPv6 / MulticastYes / Yes / No
Looking glassNot available
Route serverNot available

Contact Information (0)

No public contacts are registered for AS31727.

Only contacts the network has chosen to publish are shown.

Upstreams (84)

View all →
ASNameRelationshipPathsLast Seen
AS3257GTT-BACKBONE GTT Communications Inc.Upstream (inferred)424
AS6939HURRICANE - Hurricane Electric LLCUpstream (inferred)35
AS6461ZAYO-6461 - Zayo BandwidthUpstream (inferred)25
AS30844LIQUID-AS Liquid Telecommunications LtdUpstream (inferred)25
AS58511ANYCAST-GLOBAL-BACKBONE - Anycast Global BackboneUpstream (inferred)20
AS137409GSLNETWORKS-AS-AP - GSL Networks Pty LTDUpstream (inferred)20
AS2914NTT-DATA-2914 - NTT America, Inc.Upstream (inferred)16
AS37468Angola Cables - Angola CablesUpstream (inferred)16
AS37100SEACOM Limited - SEACOM LimitedUpstream (inferred)15
AS37497Network Platforms (PTY) LTD - Network Platforms (PTY) LTDUpstream (inferred)15
AS49544i3Dnet i3D.net B.VUpstream (inferred)15
AS1031PEER1-1031 - PEER 1031 LLCUpstream (inferred)13

Downstreams (7)

ASNameRelationshipPathsLast Seen
AS174COGENT-174 - Cogent Communications, LLCBoth sides8
AS29452—Downstream (inferred)Inferred—
AS39620—Downstream (inferred)Inferred—
AS39633—Downstream (inferred)Inferred—
AS44052—Downstream (inferred)Inferred—
AS49793—Downstream (inferred)Inferred—
AS208363—Downstream (inferred)Inferred—

Registry and network details

Registered holderNODE4-AS Node4 Limited
RegisteredYes
Peering policyOpen
IRR AS-setAS-NODE4
Registry record last modified
MaintainersRIPE-NCC-END-MNT, N4-NOC
Internet exchanges2
Facilities4
Network profile updated

Data updated . See limitations.