AS21301

Name: AS21301 — Natwest Markets PLC
Creator: ipdex

Natwest Markets PLC Unknown registered in United Kingdom

10IPv4 prefixes

0IPv6 prefixes

#20,864AS Rank

327/327RIS visibility

#370Rank in United Kingdom

2001-10-24Allocated

Natwest Markets PLC (AS21301) — Unknown, registered in United Kingdom. announces 10 IPv4 prefixes + 0 IPv6 prefixes. Rank in United Kingdom: #370. Allocated: 2001-10-24.

IPv4 10IPv6 0

Announced prefixes · 10

v4 155.136.151.0/24 unknown
v4 155.136.200.0/23 unknown
v4 155.136.200.0/24 unknown
v4 155.136.201.0/24 unknown
v4 155.136.202.0/23 unknown
v4 155.136.56.0/22 unknown
v4 155.136.56.0/24 unknown
v4 155.136.57.0/24 unknown
v4 155.136.58.0/24 unknown
v4 155.136.59.0/24 unknown

Routing: 12 IPv4 · 0 IPv6 announced · RIS visibility 327/327 RIS peers · RIPEstat · 2026-06-17

Prefix history

Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)

Data table

Day	Announced prefixes
2026-06-12	10
2026-06-13	10
2026-06-14	8
2026-06-16	10

AS topology · Customer cone 1

Providers · 3

AS1273 Vodafone Group PLC
AS32787 Akamai Technologies, Inc.
AS2856 British Telecommunications PLC

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