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Data as of Nov 6, 2026

151.186.35.0/24

No anonymizer space · no proxy exits in 30 days

Cisco OpenDNS, LLC · space held by Cisco Systems, Inc.

Announcement
this exact prefix
RPKI valid
Announced by
AS36692
Type
Corporate gateway
Risk
20 / 100 · Low
Recent change
New origin Oct 22, 2026
its first announcement on record

Operators, sellers and brokers

Corporate gateways

NameParentIn 151.186.35.0/24/24s
Cisco UmbrellaCisco
256100%
1

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
151.186.0.0/1665,536OpenDNS-RIPECisco Systems, Inc. (ORG-CSI15-RIPE) · USLEGACYSep 2, 2021rir-abuse@cisco.com
└ 151.186.35.0/24256CISCO-CIE-AKL1-EDCunknownLEGACYMay 27, 2026rir-abuse@cisco.com
via OpenDNS-RIPE

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
Cisco Systems, Inc.
Handle
ORG-CSI15-RIPE
Range
151.186.0.0/16
Registration type
LEGACY
Record created
Sep 2, 2021
Legacy
yes
Origin network

AS36692

US
Name
Cisco OpenDNS, LLC
Type
Business
Registered
Mar 21, 2006
Domain
opendns.com
Website
www.opendns.com/
Industry
Computer and Information Technology
Spamhaus ASN-DROP
not listed