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Autonomous System

AS4155

USDA

Announced IPs
3,147,776
CIDR prefixes
20
ASN
AS4155

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.

69/100
Moderate
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

AS4155 — global IP footprint

Cities where AS4155 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

View on 3D globe →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
199.128.0.0/11 2.10M
0.2%
USDA US Pennsylvania Lancaster
166.4.0.0/14 262.1K
0.0%
USDA US California Clovis
150.118.0.0/15 131.1K
0.0%
USDA US
166.2.0.0/15 131.1K
0.0%
USDA US Idaho McCall
147.49.0.0/16 65.5K
0.0%
USDA US California Parlier
150.120.0.0/16 65.5K
0.0%
USDA US
151.121.0.0/16 65.5K
0.3%
USDA US
160.232.0.0/16 65.5K
0.0%
USDA US Maryland Annapolis
162.79.0.0/16 65.5K
0.3%
USDA US
165.221.0.0/16 65.5K
0.4%
USDA US Texas Stephenville
168.68.0.0/16 65.5K
0.2%
USDA US Maryland Bowie
170.144.0.0/16 65.5K
0.0%
USDA US
192.12.9.0/24 256
0.0%
USDA US
192.73.224.0/24 256
0.0%
USDA US
192.84.74.0/24 256
2.7%
USDA US
192.86.24.0/24 256
2.3%
USDA US
192.131.1.0/24 256
0.0%
USDA US
192.195.241.0/24 256
0.0%
USDA US
192.231.33.0/24 256
0.0%
USDA US
198.22.127.0/24 256
0.0%
USDA US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS4155 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
192.86.24.0/24 8,252 2026-07-18 11:08:06
198.22.127.0/24 6,088 2026-07-18 12:01:16
147.49.0.0/16 5,619 2026-07-18 12:01:16
151.121.0.0/16 5,614 2026-07-18 12:01:16
160.232.0.0/16 5,590 2026-07-18 12:01:16
150.119.0.0/16 5,581 2026-07-18 12:01:16
150.120.0.0/16 5,578 2026-07-18 12:01:16
192.195.241.0/24 5,577 2026-07-18 12:01:16
168.68.0.0/16 5,576 2026-07-18 12:01:16
162.79.0.0/16 5,574 2026-07-18 12:01:16
165.221.0.0/16 5,569 2026-07-18 12:01:16
170.144.0.0/16 5,561 2026-07-18 12:01:16
192.231.33.0/24 5,552 2026-07-18 12:01:16
192.131.1.0/24 5,551 2026-07-18 12:01:16
192.12.9.0/24 5,542 2026-07-18 12:01:16
192.73.224.0/24 5,538 2026-07-18 12:01:16
150.118.0.0/15 5,535 2026-07-18 12:01:16
166.2.0.0/15 5,533 2026-07-18 12:01:16
166.4.0.0/15 5,489 2026-07-18 12:01:16
166.6.0.0/15 5,483 2026-07-18 12:01:16
192.84.74.0/24 5,444 2026-07-18 11:08:06
199.128.0.0/11 5,419 2026-07-18 12:01:16
199.141.126.0/24 4,454 2026-07-18 11:08:06

Frequently Asked Questions

What is AS4155?

AS4155 is an Autonomous System Number assigned to USDA. 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 AS4155 announce?

AS4155 announces 3.15M IPv4 addresses distributed across 20 routed CIDR prefixes. The network is registered in United States.

Who operates AS4155?

AS4155 is operated by USDA. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS4155 registered in?

AS4155 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: 2026-07-18 12:40:28 UTC
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