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Autonomous System

AS11406

CIGNA

Announced IPs
9,216
CIDR prefixes
4
ASN
AS11406

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

53/100
Caution
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 2 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS11406 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.

PrefixOrigin ASNsLast detected (UTC)
208.242.12.0/22 AS11406, AS13348 2026-07-24 16:23:50
170.48.0.0/18 AS11406, AS13348 2026-07-24 13:23:48

Network profile

Source: PeeringDB →
Geographic scope Not Disclosed
Traffic ratio Not Disclosed

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
170.48.0.0/20 4.1K
9.5%
CIGNA US Indiana Stilesville
170.48.32.0/20 4.1K
0.2%
CIGNA US Connecticut South Windsor
208.242.12.0/22 1.0K
7.5%
CIGNA US
208.242.14.0/23 512
0.0%
CIGNA US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS11406 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
170.48.32.0/24 5,225 2026-07-24 15:46:39
170.48.33.0/24 5,224 2026-07-24 15:46:39
170.48.47.0/24 5,187 2026-07-24 15:46:39
170.48.39.0/24 5,165 2026-07-24 15:46:39
170.48.36.0/24 5,164 2026-07-24 15:46:39
170.48.43.0/24 5,162 2026-07-24 15:46:39
170.48.1.0/24 5,161 2026-07-24 15:46:39
170.48.0.0/24 5,069 2026-07-24 15:46:39
170.48.15.0/24 5,009 2026-07-24 15:46:39
170.48.2.0/24 5,007 2026-07-24 15:46:39
170.48.8.0/24 5,004 2026-07-24 15:46:39
170.48.7.0/24 5,000 2026-07-24 15:46:39
208.242.14.0/23 4,944 2026-07-24 15:46:51
170.48.0.0/20 4,941 2026-07-24 15:46:51
170.48.32.0/20 4,939 2026-07-24 15:46:51
208.242.14.0/24 4,908 2026-07-24 15:46:39
170.48.14.0/24 4,891 2026-07-24 15:46:39
170.48.11.0/24 4,890 2026-07-24 15:46:39
170.48.13.0/24 4,883 2026-07-24 15:46:39
170.48.10.0/24 4,882 2026-07-24 15:46:39
170.48.12.0/24 4,868 2026-07-24 15:46:39
170.48.0.0/18 2,622 2026-07-24 13:28:09
208.242.12.0/22 2,504 2026-07-24 13:29:44

Frequently Asked Questions

What is AS11406?

AS11406 is an Autonomous System Number assigned to CIGNA. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS11406 announce?

AS11406 announces 9.2K IPv4 addresses distributed across 4 routed CIDR prefixes. The network is registered in United States.

Who operates AS11406?

AS11406 is operated by CIGNA. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS11406 registered in?

AS11406 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-24 16:25:32 UTC
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