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Autonomous System

AS40238

Jostens

Announced IPs
768
CIDR prefixes
3
ASN
AS40238

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.

65/100
Moderate
How this score is built

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

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
71.13.153.0/24 256
94.5%
Jostens US
192.189.112.0/24 256
0.0%
Jostens US Tennessee Clarksville
216.114.211.0/24 256
77.7%
Jostens US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS40238 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
192.189.112.0/24 15,902 2026-07-24 06:06:17
216.114.211.0/24 6,462 2026-07-24 06:06:23
71.13.153.0/24 3,536 2026-07-24 06:05:52

Frequently Asked Questions

What is AS40238?

AS40238 is an Autonomous System Number assigned to Jostens. 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 AS40238 announce?

AS40238 announces 768 IPv4 addresses distributed across 3 routed CIDR prefixes. The network is registered in United States.

Who operates AS40238?

AS40238 is operated by Jostens. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS40238 registered in?

AS40238 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 06:40:31 UTC
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