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Data as of Nov 9, 2026

178.22.140.0/23

No anonymizer space · no proxy exits in 30 days

Simwood eSMS Limited

Announcement
this exact prefix
RPKI valid
Announced by
AS42353
Type
Internet provider
96% of it

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
178.22.136.0/21
since Aug 2016
AS42353Internet provider1Simwood eSMS Limited
More specific

Announcements inside

PrefixOriginTypeHolderRPKI
178.22.140.0/24
since Jul 2022
AS42353Internet providerSimwood eSMS Limited
178.22.141.0/24
since Jul 2022
AS42353Internet providerSimwood eSMS Limited

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
178.22.136.0/212,048UK-SIMWOOD-20100409Simwood eSMS Limited (ORG-SEL11-RIPE) · GBALLOCATED PAApr 9, 2010noc@simwood.com
└ 178.22.141.0/2816CROCUS-SLOUGHCrocus.co.uk Limited - Simwood, SloughASSIGNED PAApr 8, 2015noc@simwood.com
via UK-SIMWOOD-20100409
└ 178.22.141.40 - 178.22.141.467DCVOIP-SLOUGHDC VoIP Solutions Limited - Simwood, SloughASSIGNED PAApr 8, 2015noc@simwood.com
via UK-SIMWOOD-20100409

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

512 addresses
TypeAddressesShareRanges
Internet provider48996%3
Business234.5%2

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS42353

GB
Name
Simwood eSMS Limited
Type
Internet provider
Registered
Feb 7, 2007
Domain
simwood.com
Website
www.simwood.com
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed