AS39326 — HSO-GROUP Syntura Group Limited

Network type: hosting

AS39326 announces 25 IPv4 prefixes covering 103,936 addresses and 3 IPv6 prefixes.

About this network

The AS handle HSO-GROUP is held by Syntura Group Limited.

What it's used for

• The address space carries business and government connectivity, evidenced by netnames such as UK-HIGHSPEEDOFFICE-20010606, UK-NGACONNECT-20140321, and UK-CABINETOFFICE-TECHNOLOGY.
• The AS announces 102,912 IPv4 addresses across 24 prefixes and 17 IPv6 prefixes, while maintaining 100 observed neighbours; this ratio indicates a transit or network service provider role rather than a pure access network.
• Traffic consists of enterprise backhaul, government agency connectivity, and infrastructure services for financial and public sector clients.

Notable

• Registrants align with the announcer for the majority of prefixes, with Syntura Group Limited listed for the largest blocks, while NGA Connect Limited and DWP-NETWORKS appear on smaller segments.
• The operator was formerly known as hSo and rebranded to Syntura following the acquisition of FITTS, a UK and East Africa-based digital transformation leader.
• The inventory includes a mix of large /16 and /19 blocks alongside numerous smaller /23 and /24 prefixes, reflecting a consolidated corporate estate with site-specific segmentation.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 37.46.200.0/21
• 37.235.54.0/23
• 46.17.56.0/21
• 51.149.9.0/24
• 51.149.10.0/23
• 77.75.104.0/21
• 80.71.0.0/19
• 89.248.16.0/20
• 92.119.136.0/22
• 93.89.80.0/20
• 151.170.0.0/16
• 151.236.19.0/24
• 185.51.172.0/22
• 185.75.28.0/23
• 185.75.30.0/24
• 188.190.5.0/24
• 192.121.112.0/23
• 194.0.77.0/24
• 194.0.78.0/23
• 194.34.204.0/24
• 194.34.206.0/23
• 194.34.213.0/24
• 195.90.120.0/23
• 195.238.232.0/24
• 217.196.224.0/19
• 2001:a08::/32
• 2a01:348::/32
• 2a03:94c0::/40

Upstream networks

• AS1299 Arelion Sweden AB
• AS2914 NTT America, Inc.
• AS6939 Hurricane Electric LLC
• AS33891 Core-Backbone GmbH
• AS42708 Glesys Sweden AB
• AS24482 SG.GS
• AS37721 Virtual Technologies & Solutions
• AS34019 Hivane Association
• AS48185 team.blue NV
• AS1103 SURF B.V.
• AS3303 Swisscom (Schweiz) AG
• AS12552 GlobalConnect AB
• AS34927 iFog GmbH
• AS3216 PJSC "Vimpelcom"
• AS37100 SEACOM Limited
• AS3741 Dimension Data
• AS9304 HGC Global Communications Limited
• AS13030 Init7 (Switzerland) Ltd.
• AS5405 Inter.link GmbH

Downstream networks

• AS41489 Watchfront Limited
• AS199448 Babble Cloud Holdings Ltd.
• AS202020 Flexgrid Ltd
• AS209113 Precedence Technologies Ltd
• AS5500 Chess ICT Ltd
• AS200652 Nuvias UC Limited
• AS201226 Leasing Options Limited
• AS15689 Advanced IT Services Nottingham Ltd
• AS59565 Cronos Internet Ltd
• AS50888 Minotaur I.T. Limited
• AS212413 Department for Work and Pensions
• AS16174 Intuitiv Ltd.
• AS35399 Online50 Limited
• AS39545 Fluidone Ltd.
• AS200008 Pirum Systems Limited
• AS60382 Cranleigh School
• AS47227 Charles Briscoe-Smith trading as Servology
• AS8330 LONAP Ltd
• AS41400 R.M. Wotton T/A G-Net Online

Adjacent networks

• AS1299 Arelion Sweden AB
• AS2914 NTT America, Inc.
• AS6939 Hurricane Electric LLC
• AS41489 Watchfront Limited
• AS39545 Fluidone Ltd.
• AS199448 Babble Cloud Holdings Ltd.
• AS202020 Flexgrid Ltd
• AS209113 Precedence Technologies Ltd
• AS34927 iFog GmbH
• AS33891 Core-Backbone GmbH
• AS5500 Chess ICT Ltd
• AS3741 Dimension Data
• AS200652 Nuvias UC Limited
• AS201226 Leasing Options Limited
• AS42708 Glesys Sweden AB
• AS3303 Swisscom (Schweiz) AG
• AS48185 team.blue NV
• AS15689 Advanced IT Services Nottingham Ltd
• AS1103 SURF B.V.
• AS24482 SG.GS
• AS37721 Virtual Technologies & Solutions
• AS34019 Hivane Association
• AS59565 Cronos Internet Ltd
• AS3216 PJSC "Vimpelcom"
• AS50888 Minotaur I.T. Limited

Routing security

• RPKI: 24 valid, 0 invalid and 11 not-found announcements; 29 ROAs.
• ASPA: none published.
• IRR: 94% of announcements registered; 47 route objects.
• Listed in as-sets: AS-37662, AS-GOSCOMB, AS-GOSCOMB-V6, AS-JAGUAR-PEERING-V6-NL-IX, AS-LIECOMTEL-PEERS, AS-LIQUID-LINXPEERS, AS-LONAP-CONNECTED, AS-LONAP-MLP, AS-LONAP-MLP-V6, AS-MANDA-AMSIX-PEERS-V4, AS-MANDA-AMSIX-PEERS-V6, AS-MANDA-LINX-PEERS-V4, AS-MANDA-LINX-PEERS-V6, AS-PLUSNETUK:AS-LINX-PEERS-PRI, AS-PLUSNETUK:AS-LINX-PEERS-SEC, AS-PLUSNETUK:AS-LONAP-PEERS-PRI, AS-PLUSNETUK:AS-LONAP-PEERS-SEC, AS-RCN-CE-PEERS, AS-TELECOM-PEERS, AS-TITANAMSIX, AS-WIOCC, AS1200:AS-AMS-IX-PEERS, AS12703:AS-PEERS, AS16243:AS-PEERS-AMSIX, AS20847:AS-PREVIDER-PEERS.

Internet exchanges

• LINX LON1 — London, United Kingdom
• AMS-IX Amsterdam — Amsterdam, Netherlands
• Neutral Internet Exchange — Amsterdam, Netherlands
• France-IX Paris — Paris, France
• London Network Access Point — London, United Kingdom
• New York International Internet Exchange — New York, United States
• LINX Manchester — Manchester, United Kingdom
• Digital Realty New York Internet Exchange — New York, United States