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Autonomous System

AS11572

PhoenixNAP LLC

Announced IPs
7,936
CIDR prefixes
12
ASN
AS11572

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

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS11572 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
63.214.166.0/23 44,515 2026-07-24 00:47:24
204.217.128.0/22 43,928 2026-07-24 01:03:19
206.232.0.0/22 43,877 2026-07-24 01:03:19
64.38.250.0/24 43,372 2026-07-24 01:02:47
131.153.65.0/24 43,268 2026-07-24 01:02:48
64.38.249.0/24 43,250 2026-07-24 01:02:47
131.153.66.0/23 43,241 2026-07-24 01:02:48
131.153.152.0/23 43,191 2026-07-24 01:02:48
104.244.52.0/24 43,154 2026-07-24 01:02:48
131.153.24.0/21 43,112 2026-07-24 01:02:16
131.153.132.0/22 42,846 2026-07-24 01:02:16
131.153.82.0/24 42,485 2026-07-24 01:02:46

Frequently Asked Questions

What is AS11572?

AS11572 is an Autonomous System Number assigned to PhoenixNAP LLC. 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 AS11572 announce?

AS11572 announces 7.9K IPv4 addresses distributed across 12 routed CIDR prefixes. The network is registered in United States.

Who operates AS11572?

AS11572 is operated by PhoenixNAP LLC. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS11572 registered in?

AS11572 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 01:25:32 UTC
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