Data as of Nov 13, 2026
151.186.36.0/24
No anonymizer space · no proxy exits in 30 daysCisco OpenDNS, LLC · space held by Cisco Systems, Inc.
Announcement
this exact prefix
RPKI valid
Announced by
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
| Name | Parent | In 151.186.36.0/24 | /24s |
|---|---|---|---|
| Cisco Umbrella | Cisco | 256100% | 1 |
Network & registry
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
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Oct 22, 2026
- Current origin since
- Oct 22, 2026 · under a month
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 151.
186. 0. 0/ 16 - Netname
- OpenDNS-RIPE
- Registrant
- Cisco Systems, Inc.
- Registrant country
- US
- Organization
- Cisco Systems, Inc. (ORG-CSI15-RIPE)
- Org country
- US
- Type
- LEGACY
- Created
- Sep 2, 2021
- Updated
- Oct 22, 2026
- Maintainer
- OPENDNS-MNT
- RIR
- RIPE NCC
- Country
- US
- Delegated
- Sep 17, 1991
- Status
- assigned
Report abuse
Abuse contact
- rir-abuse@
cisco. com - Name
- Abuse-C Role
- Handle
- AR80285-RIPE