Data as of Nov 4, 2026
151.186.37.0/24
No anonymizer space · no proxy exits in 30 daysCisco OpenDNS, LLC
Announcement
this exact prefix
No RPKI
Announced by
Type
Hosting
Risk
50 / 100 · Medium
Recent change
New origin Nov 4, 2026
its first announcement on record
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.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 151.186.0.0/16 | 65,536 | OpenDNS-RIPE | Cisco Systems, Inc. (ORG-CSI15-RIPE) · US | LEGACY | Sep 2, 2021 | rir-abuse@ |
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
- Nov 4, 2026
- Current origin since
- Nov 4, 2026 · under a month
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- Not stated by the registry
- Netname
- OpenDNS-RIPE
- Registrant
- Cisco Systems, Inc.
- Registrant country
- US
- Organization
- Not stated by the registry
- Created
- Not stated by the registry
- RIR
- RIPE NCC
- Country
- US
- Delegated
- Sep 17, 1991
- Status
- assigned