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Autonomous System

AS19321

University Medical Center

Announced IPs
1,024
CIDR prefixes
1
ASN
AS19321

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.

71/100
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
199.21.252.0/22 1.0K
0.2%
University Medical Center US Texas Lubbock

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS19321 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
199.21.252.0/23 24,785 2026-08-05 05:20:41
199.21.254.0/23 24,782 2026-08-05 05:20:41

Frequently Asked Questions

What is AS19321?

AS19321 is an Autonomous System Number assigned to University Medical Center. 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 AS19321 announce?

AS19321 announces 1.0K IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in United States.

Who operates AS19321?

AS19321 is operated by University Medical Center. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS19321 registered in?

AS19321 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: 2026-08-05 05:55:31 UTC
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