AS47474 — Virtual1 Virtual1 Limited

AS47474 announces 16 IPv4 prefixes covering 153,344 addresses and 1 IPv6 prefixes.

About this network

The AS handle VIRTUAL1 is held by Virtual1 Limited.

What it's used for

• The address space carries wholesale and enterprise connectivity, evidenced by netnames such as UK-VIRTUAL1-20060406 and UK-VIRTUAL1-940210, and reverse DNS entries pointing to virtual1.co.uk.
• The AS announces 153,344 IPv4 addresses across 16 prefixes and 1 IPv6 prefix, with 13 observed neighbours, indicating a role as a network service provider (NSP) rather than a large-scale residential access network.
• Traffic from this AS consists of wholesale fibre backhaul, enterprise connectivity, and data centre interconnects, consistent with Virtual1's business model of providing high-capacity fibre infrastructure to other ISPs and businesses.

Notable

• Registrants for the largest prefixes consistently list Virtual1 Limited and Virtual1 Network Operations, aligning with the AS announcer.
• Virtual1 was acquired by CityFibre, a UK telecoms company, following the departure of founder Tom O'Hagan.
• The inventory includes a mix of large blocks like 89.197.0.0/16 and smaller /21 and /22 allocations, reflecting a diverse portfolio of acquired and allocated address space.

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

Announced prefixes

• 37.130.248.0/21
• 46.18.216.0/21
• 62.64.140.0/22
• 62.64.160.0/19
• 62.64.192.0/18
• 79.98.160.0/21
• 89.197.0.0/16
• 95.138.200.0/21
• 128.127.24.0/21
• 185.20.60.0/22
• 185.37.176.0/22
• 185.135.56.0/24
• 185.135.59.0/24
• 185.250.32.0/24
• 193.115.192.0/18
• 193.117.128.0/17
• 2a01:a000::/32

Upstream networks

• AS13285 TalkTalk Communications Limited

Downstream networks

• AS22717 Halliburton Company
• AS203171 Chi Technology Ltd
• AS51762 Adversor LLP
• AS401234 Northeastern University
• AS213534 Gardners Books Ltd
• AS203573 Tailor Made Technologies Ltd
• AS3573 Accenture LLP
• AS206467 Protech Communications Ltd
• AS197104 Gentoo Group Limited
• AS21422 Connect internet Solutions Limited
• AS47611 Warner Music International Services Limited
• AS43408 Orange Cyberdefense UK Limited
• AS50743

Adjacent networks

• AS13285 TalkTalk Communications Limited
• AS22717 Halliburton Company
• AS203171 Chi Technology Ltd
• AS51762 Adversor LLP
• AS401234 Northeastern University
• AS213534 Gardners Books Ltd
• AS203573 Tailor Made Technologies Ltd
• AS3573 Accenture LLP
• AS206467 Protech Communications Ltd
• AS197104 Gentoo Group Limited
• AS21422 Connect internet Solutions Limited
• AS47611 Warner Music International Services Limited
• AS43408 Orange Cyberdefense UK Limited
• AS50743

Routing security

• RPKI: 13 valid, 0 invalid and 4 not-found announcements; 14 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 22 route objects.
• Listed in as-sets: AS-63529-AS-IMPORT-AS6939, AS-CONNETU-LINX, AS-HURRICANEV6, AS-KPN, AS-VIRTUAL1, AS-VONE, AS-XO-B.

Internet exchanges

• LINX LON1 — London, United Kingdom