AS29017 — GYRON NTT Global Data Centers EMEA UK Ltd.

Network type: hosting

AS29017 announces 8 IPv4 prefixes covering 34,560 addresses and 1 IPv6 prefixes.

About this network

The AS handle GYRON is held by NTT Global Data Centers EMEA UK Ltd.

What it's used for

• The address space carries data center and hosting infrastructure, evidenced by netnames such as UK-GYRON-20040701 and UK-GYRON-20060131 registered to NTT Global Data Centers EMEA UK Ltd.
• With 34,560 IPv4 addresses announced across 10 prefixes and 75 observed neighbours, the ratio suggests a hosting or transit provider role rather than a pure access network.

Notable

• Registrants for the majority of prefixes align with the announcer, specifically NTT Global Data Centers EMEA UK Ltd., though smaller blocks are registered to Sharpstack Hosting Ltd, Sitebulb, and VM Linux Ltd.
• The operator was formerly known as Gyrion, a UK-based data center provider that was acquired by NTT Global Data Centers, resulting in the current registry name.
• The inventory consists of several /19 and /20 blocks alongside smaller /23 and /24 prefixes, indicating a consolidated corporate estate with some legacy or third-party allocations.

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

Announced prefixes

• 78.40.58.0/24
• 83.223.96.0/19
• 89.145.64.0/18
• 185.32.105.0/24
• 185.32.106.0/23
• 185.230.220.0/23
• 193.227.111.0/24
• 212.113.128.0/19
• 2a00:14f0::/32

Upstream networks

• AS5405 Inter.link GmbH
• AS2914 NTT America, Inc.
• AS6939 Hurricane Electric LLC
• AS34549 meerfarbig GmbH & Co. KG
• AS50300 CustodianDC Limited
• AS17639 Converge ICT Solutions Inc.
• AS42708 Glesys Sweden AB
• AS48185 team.blue NV
• AS24482 SG.GS
• AS7575 Australian Academic and Research Network (AARNet)
• AS50304 Blix Solutions AS
• AS33891 Core-Backbone GmbH
• AS31500 Global Network Management Inc
• AS37100 SEACOM Limited
• AS12552 GlobalConnect AB
• AS37721 Virtual Technologies & Solutions
• AS4657 StarHub Ltd
• AS48362 Stadtwerke Feldkirch

Downstream networks

• AS50395 Julian Lannert
• AS212419 Wunderman Thompson Commerce UK Ltd
• AS209419 Julian Lannert
• AS47219 NTT Global Data Centers EMEA UK Ltd.
• AS62075 Julian Lannert

Adjacent networks

• AS5405 Inter.link GmbH
• AS6939 Hurricane Electric LLC
• AS2914 NTT America, Inc.
• AS50395 Julian Lannert
• AS212419 Wunderman Thompson Commerce UK Ltd
• AS209419 Julian Lannert
• AS47219 NTT Global Data Centers EMEA UK Ltd.
• AS34549 meerfarbig GmbH & Co. KG
• AS48185 team.blue NV
• AS24482 SG.GS
• AS42708 Glesys Sweden AB
• AS50300 CustodianDC Limited
• AS17639 Converge ICT Solutions Inc.
• AS33891 Core-Backbone GmbH
• AS12552 GlobalConnect AB
• AS37721 Virtual Technologies & Solutions
• AS7575 Australian Academic and Research Network (AARNet)
• AS4657 StarHub Ltd
• AS50304 Blix Solutions AS
• AS37100 SEACOM Limited
• AS31500 Global Network Management Inc
• AS48362 Stadtwerke Feldkirch
• AS62075 Julian Lannert

Routing security

• RPKI: 3 valid, 0 invalid and 8 not-found announcements; 3 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 21 route objects.
• Listed in as-sets: AS-4D-DC-LONAP, AS-AS19324-CUSTAS, AS-ATRATO:AS-PEERS, AS-BTN-CUSTOMERS, AS-CGRP1, AS-DDITS:AS-PEERS, AS-DOCLER:AS-PEERS, AS-DOSARREST-CUSTAS, AS-GBLXEU, AS-GREEN-PEERS, AS-GYRON, AS-HURRICANEV6, AS-LIECOMTEL-PEERS, AS-LIQUID-LINXPEERS, AS-LONAP-CONNECTED, AS-LONAP-MLP, AS-LONAP-MLP-V6, AS-MANDA-LINX-PEERS-V4, AS-MANDA-LINX-PEERS-V6, AS-PLUSNETUK:AS-LINX-PEERS-PRI, AS-PLUSNETUK:AS-LINX-PEERS-SEC, AS-SPOTIFY, AS-SWCM-MARTIANS-ACCEPT, AS-TELECOM-PEERS, AS-XPOINTML.

Internet exchanges

• LINX LON1 — London, United Kingdom
• AMS-IX Amsterdam — Amsterdam, Netherlands
• London Network Access Point — London, United Kingdom