Data as of Nov 10, 2026
151.
Corporate gateway · not an anonymizer- Proxy activity
- Not seen in 30 days
- Type
- Corporate gatewayHosting network
- Risk
- 20 / 100 · Low
- Operator
- Corporate gatewaysoperated by Cisco Umbrella
- Recent change
- Announced by AS36692 since Nov 6, 20264 days ago
- Announced by
- AS36692Cisco OpenDNS, LLCopendns.comBusiness
- Announcement
- 151.186.172.0/24RPKI valid
- Location
- Seattle, Washington, United States
Network & registry
Announced by
Announcement
- Prefix
- 151.186.172.0/24
- Announced by
- AS36692 Cisco OpenDNS, LLC
- Type
- Corporate gateway
- RPKI
- RPKI valid
Registry
Holder
- Organization
- Not stated by the registry
- Range
- 151.
186. 172. 0/ 22 - Registration type
- LEGACY
- Record created
- Sep 20, 2023
- 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 151.186.172.0/24
151.186.172.0/24
Routing history
- Pattern
- Stable
- First seen
- Sep 2023
- Current origin since
- Nov 6, 2026 · under a month
- Origin networks
- 2
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 151.186.172.0/24 | AS14618 | /24 | RIPE | Another network |
| 151.186.172.0/24 | AS16509 | /24 | RIPE | Another network |
| 151.186.172.0/24 | AS36692 | /24 | RIPE | RPKI valid |
| 151.186.172.0/22 | AS14618 | /24 | RIPE | Another network |
| 151.186.172.0/22 | AS16509 | /24 | RIPE | Another network |
| 151.186.172.0/22 | AS36692 | /24 | RIPE | RPKI valid |
Whois
Registration for this address
- Range
- 151.
186. 172. 0/ 24 - Netname
- CIE-CA
- Registrant country
- CA
- Organization
- Not stated by the registry
- Type
- LEGACY
- Created
- Jan 10, 2024
- Updated
- Jan 9, 2025
- 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
Geolocation
Location detail
- Country
- United States
- Region
- Washington
- City
- Seattle
- Coordinates
- 47.
6062, -122. 3321 - Time zone
- America/Los_Angeles
- Continent
- North America
- GeoNames
- 5809844