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Data as of Nov 7, 2026

81.21.136.0/24

No anonymizer space · no proxy exits in 30 days

Signet B.V.

Announcement
this exact prefix
RPKI valid
Announced by
AS31586
Type
Hosting
Risk
50 / 100 · Medium

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
81.21.136.0/21
since Jan 2011
AS28878Business4
1 always on
Signet B.V.

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
81.21.136.0/212,048NL-SIGNET-20110118Signet B.V. (ORG-SI6-RIPE) · NLALLOCATED PAJan 18, 2011abuse@signet.nl
└ 81.21.136.0/24256SIGNET-SON-DC1-VZSignet SonASSIGNED PAFeb 22, 2011abuse@signet.nl
via NL-SIGNET-20110118

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

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Registry

Holder

Organization
Signet B.V.
Handle
ORG-SI6-RIPE
Range
81.21.136.0/21
Registration type
ALLOCATED PA
Record created
Jan 18, 2011
Origin network

AS31586

NL
Name
Signet B.V.
Type
Hosting
Registered
Jun 17, 2004
Domain
signet.nl
Industry
Hosting and Cloud Provider
Spamhaus ASN-DROP
not listed