AS42353
Simwood eSMS Limited ISP registered in United Kingdom
14IPv4 prefixes
0IPv6 prefixes
93%RPKI-valid
#31,481AS Rank
327/327RIS visibility
#262Rank in United Kingdom
2007-02-07Allocated
Simwood eSMS Limited (AS42353) — ISP, registered in United Kingdom. announces 14 IPv4 prefixes + 0 IPv6 prefixes. Rank in United Kingdom: #262. Allocated: 2007-02-07.
IPv4 14IPv6 0
Announced prefixes · 14
- v4 178.22.136.0/21 valid
- v4 178.22.136.0/23 valid
- v4 178.22.136.0/24 valid
- v4 178.22.137.0/24 valid
- v4 178.22.139.0/24 valid
- v4 178.22.140.0/23 valid
- v4 178.22.140.0/24 valid
- v4 178.22.141.0/24 valid
- v4 178.22.142.0/24 valid
- v4 178.22.143.0/24 valid
- v4 185.63.140.0/24 valid
- v4 185.63.142.0/24 valid
- v4 194.0.210.0/24 valid
- v4 91.233.5.0/24 unknown
RPKI: rpki.cloudflare.com · 2026-06-17
Routing: 14 IPv4 · 0 IPv6 announced · RIS visibility 327/327 RIS peers · RIPEstat · 2026-06-17
Prefix history
Data table
| Day | Announced prefixes |
|---|---|
| 2026-06-12 | 14 |
| 2026-06-13 | 14 |
Internet Exchanges · 4
- LINX Wales Cardiff 20 Gbps
- LINX LON1 London 10 Gbps
- LINX LON2 London 10 Gbps
- LINX Manchester Manchester 10 Gbps
Facilities · 6
- Equinix LD4 - London, Slough Slough
- Equinix MA4 - Manchester, Synergy House Manchester
- NGD Newport Newport
- Telehouse - London (Docklands East) London
- Telehouse - London (Docklands North) London
- Verne London London
AS topology · Customer cone 1
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