AS31463 — FOURD-AS
Network type: hosting
AS31463 announces 30 IPv4 prefixes covering 34,304 addresses and 3 IPv6 prefixes.
About this network
FOURD-AS is operated by Redcentric Solutions Ltd, a UK managed service provider.
What it's used for
- The address space carries business and managed services traffic, evidenced by netnames like UK-REDCENTRIC-20120330 and reverse DNS entries such as 79-99-66-0.4d-dc.com and mail.ptplatform.com.
- With 34,304 IPv4 addresses announced across 38 prefixes and only 5 observed neighbours, the high address-to-neighbour ratio indicates a hosting or access network rather than a transit provider.
Notable
- Registrants largely align with the announcer, with most prefixes registered to Redcentric Solutions Ltd, though some blocks are registered to Liquid Web B.V. and Clear Connect Limited.
- The address inventory is a mix of /21, /22, and smaller blocks, including space originally allocated to other entities like Liquid Web B.V.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 37.209.208.0/20
- 45.140.136.0/22
- 45.140.252.0/22
- 46.245.248.0/21
- 79.99.64.0/21
- 79.174.28.0/22
- 87.76.18.0/23
- 87.76.20.0/24
- 87.76.22.0/23
- 87.76.24.0/24
- 87.76.27.0/24
- 87.76.28.0/22
- 91.199.252.0/24
- 91.220.24.0/24
- 93.177.127.0/24
- 94.228.32.0/20
- 109.71.78.0/24
- 109.74.20.0/22
- 165.84.208.0/23
- 165.84.216.0/21
- 173.249.153.0/24
- 173.249.154.0/23
- 178.17.32.0/20
- 178.251.32.0/21
- 185.4.128.0/22
- 185.34.208.0/22
- 185.160.164.0/22
- 185.167.216.0/24
- 185.167.228.0/22
- 195.226.201.0/24
- 2a00:1c18::/29
- 2a07:45c2::/40
- 2a0f:64c0::/29
Upstream networks
Downstream networks
Adjacent networks
- AS13009 Redcentric Solutions Ltd
- AS25546 Brookland Computer Services Limited
- AS50300 CustodianDC Limited
- AS42044 CentralNic Ltd
- AS35241 Vostel Limited
Internet exchanges
- LINX LON1 — London, United Kingdom
- London Network Access Point — London, United Kingdom
BGP / ASN / CIDR
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IPv4
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IPv6
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Search Results
IPv4 Prefixes
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IPv6 Prefixes
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Total Prefixes
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Unique /24s
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⚠ SUSPICIOUS PREFIX ANNOUNCEMENTS DETECTED