Autonomous system
AS25605 SCANSAFE
Hosting ARIN
Summary
Cisco OpenDNS
dns security business
The AS handle SCANSAFE is held by Cisco OpenDNS, LLC.
What it's used for
- The address space carries infrastructure for DNS and security services, evidenced by netnames
OPENDNS-NET-3,US-OPENDNSINC, andSCANSAFE-ARIN-02, and a reverse DNS record pointing toesxi02.dev.opendns.com. - The AS announces 768 IPv4 addresses across 3 prefixes and maintains 2 observed neighbours, a ratio consistent with a specialized business or internal corporate estate rather than a transit or access provider.
Notable
- Registrants align with the announcer, listing Cisco OpenDNS, LLC and the OpenDNS NetEng team for all three prefixes.
- The operator was formerly known as ScanSafe, a security company acquired by Cisco, which integrated the business into its OpenDNS and security cloud operations.
- The inventory consists of three /24 blocks, all located in the United States, with no IPv6 prefixes announced.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Danish Internet Exchange | Copenhagen, Denmark | 185.1.57.184 |
Transit providers
1 upstream, 1 downstream and 6 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS36692 | Cisco OpenDNS, LLC | 190 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 768 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 3 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS25605- Registry name
- SCANSAFE
- Registrant
- Cisco OpenDNS, LLC
- Abuse contact
- rir-abuse@cisco.com
- Registered
- 2009-04-30
- Last changed
- 2022-05-24
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 4 valid, 0 with no ROA
- ROAs
- 4 authorising AS25605
- ASPA
- no ASPA record
- IRR
- 75% registered · 3 of 4 announcements
- Route objects
- 28 naming AS25605
Reputation
Classification and threat
Hosting Datacenter or cloud provider. Addresses are servers, not people.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 432 networks and 1,768 prefixes, as published 2026-10-12. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere