Data as of Nov 3, 2026
151.186.3.0/24
No anonymizer space · no proxy exits in 30 daysCisco OpenDNS, LLC · space held by Cisco Systems, Inc.
Operators, sellers and brokers
Corporate gateways
| Name | Parent | In 151.186.3.0/24 | /24s |
|---|---|---|---|
| Cisco Umbrella | Cisco | 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.
| 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 | [email protected] |
| └ 151.186.3.0/24 | 256 | Quadra-MUM2-EDC | unknown | LEGACY | Jun 6, 2023 | [email protected] 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
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
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Dec 2022
- Current origin since
- Dec 2022 · 3.8 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 151.186.3.0/24
- Netname
- Quadra-MUM2-EDC
- Registrant country
- IN
- Organization
- Not stated by the registry
- Type
- LEGACY
- Created
- Jun 6, 2023
- Updated
- Jan 9, 2025
- Maintainer
- OPENDNS-MNT
- RIR
- RIPE NCC
- Country
- US
- Delegated
- Sep 17, 1991
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- Abuse-C Role
- Handle
- AR80285-RIPE