Cisco OpenDNS, LLC

Data as of 2026-07-26
BGP inherited
Cluster stats
Netblocks1,556 · 376,088 IPv4 addresses
IPv6 166 prefixes (largest 2a04:e4c0::/29)
Registered in United States (1,428) · Saudi Arabia (2)
Cluster ID213315980
RegistryBGP
Customersfind customers using this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 18 shared RIR contact/maintainer handles
Registry names 38 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

6 weekly snapshots · JSON
1,596 -128 netblocks since 2026-07-05
2026-07-05 peak 1,739 2026-07-26

IP Ranges (1,556)

showing 50 of 1,556 — see all — ⬇ export CSV (free export limited to 500 rows — subscribe for the full export)
CIDR Org name Registry Status Confidence
46.255.41.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
67.215.64.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
67.215.65.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
67.215.66.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
67.215.69.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
67.215.70.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
67.215.71.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
67.215.73.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
67.215.76.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
67.215.78.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
67.215.79.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
67.215.80.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
67.215.81.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
67.215.82.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
67.215.83.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
67.215.84.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
67.215.85.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
67.215.86.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
67.215.87.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
67.215.88.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
67.215.90.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
67.215.94.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
67.215.95.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
80.254.144.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
108.171.128.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
108.171.129.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
108.171.130.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
108.171.158.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
108.171.159.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
146.112.0.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
146.112.1.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
146.112.2.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
146.112.3.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
146.112.4.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
146.112.5.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
146.112.6.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
146.112.7.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
146.112.8.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
146.112.9.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
146.112.11.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
146.112.12.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
146.112.14.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
146.112.15.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
146.112.16.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
146.112.17.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
146.112.18.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
146.112.20.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
146.112.21.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
146.112.22.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high
146.112.23.0/24 Cisco OpenDNS, LLC BGP ANNOUNCED ● high

IPv6 ranges (166)

showing the 15 largest allocations
CIDR
2a04:e4c0::/29
2a00:9600::/32
2603:5000:3000::/44
2603:5000:3010::/44
2603:5000:3020::/44
2603:5000:3030::/44
2603:5000:3060::/44
2603:5000:3070::/44
2603:5000:3080::/44
2603:5000:4060::/44
2603:5000:4070::/44
2603:5000:4080::/44
2603:5000:60::/44
2603:5000:70::/44
2603:5000:80::/44

Domains hosted in this network

what's this?
opendns.com umbrella.com cisco.com opendnstest.com internetbadguys.com dnsomatic.com strln.net examplemalwaredomain.com examplebotnetdomain.com akadns.net

Network trust

what's this?
RPKI hygiene: A how networks compare →
98.4% of checked blocks have valid RPKI ROA coverage (1,570 of 1,596)
Possible discrepancies (4)

These blocks are registered to Cisco OpenDNS, LLC but cryptographically authorized for a different, unrelated network (1 distinct holder) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

67.215.71.0/24 /24 authorized for AS14618 — Amazon.com, Inc.
151.186.165.0/24 /24 authorized for AS14618 — Amazon.com, Inc.
151.186.200.0/24 /24 authorized for AS14618 — Amazon.com, Inc.
151.186.201.0/24 /24 authorized for AS14618 — Amazon.com, Inc.

NIC Handles

AS25605 AS36692 CCSNA-ARIN CCSNA1-ARIN CCSNT-ARIN DUMY-RIPE DUMY-RIPE GULFNET-MNT NETC-SUST-MNT NETC-SUST-MNT ODNS65-RIPE OPEND-2 +6 more