subnet.im

AS25605Cisco OpenDNS, LLC

United StatesRegistryARIN

As of 23rd October 2026, AS25605 (Cisco OpenDNS, LLC), a network registered in the United States with ARIN, originates 3 IPv4 prefixes covering 768 addresses. By IPv4 address space that makes it the 44,967th-largest of the 79,659 networks we see originating IPv4, and the 9,401st-largest of 18,482 in the United States. It is seen behind 1 upstream network, most often AS36692 (Cisco OpenDNS, LLC), and in front of 2 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 67% of its routes reach at least 90% of full-feed peers, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

3

IPv6 prefixes

0

IPv4 addresses

768

IPv6 /64s

0

Upstream graph

The networks AS25605 is seen behind, one and two hops out, drawn from real AS paths.

AS25605Toward the internet core
Upstream graph for AS25605: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS25605Cisco OpenDNS, LLCThis networkAS36692Cisco OpenDNS, LLCAS2914NTT America, Inc.AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS25605 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

5

adjacent networks

Upstreams
120%
Peers
240%
Downstreams
240%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS25605
NetworkCountryRelationshipPathsVantage pts
AS36692Cisco OpenDNS, LLCUSPeer5,209140

Prefixes

The largest blocks AS25605 originates, widest first.

Largest prefixes originated by AS25605
PrefixAddressesVisibility
155.190.249.0/2425677/77
198.41.11.0/2425677/77
198.41.13.0/2425616/77

Routing health

How AS25605's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid100.0%3
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more66.7%2
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%33.3%1

Prefix sizes

IPv4 — 3 prefixes

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

  • Withdrawn67.215.95.0/2420th Oct 2026

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.