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Autonomous System

AS1493

Headquarters, USAISC

Announced IPs
131,840
CIDR prefixes
35
ASN
AS1493

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 v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
146.55.192.0/18 16.4K
0.0%
Headquarters, USAISC US
155.19.192.0/18 16.4K
68.8%
Headquarters, USAISC US
155.213.64.0/18 16.4K
0.0%
Headquarters, USAISC US
155.28.160.0/19 8.2K
0.0%
Headquarters, USAISC US
155.28.192.0/19 8.2K
0.0%
Headquarters, USAISC US
158.13.160.0/19 8.2K
0.0%
Headquarters, USAISC US
199.209.160.0/19 8.2K
65.9%
Headquarters, USAISC US
146.55.80.0/20 4.1K
0.0%
Headquarters, USAISC US
155.26.176.0/20 4.1K
0.0%
Headquarters, USAISC US
155.26.208.0/20 4.1K
0.0%
Headquarters, USAISC US
155.28.240.0/20 4.1K
0.0%
Headquarters, USAISC US
155.152.128.0/20 4.1K
0.0%
Headquarters, USAISC US
155.152.176.0/20 4.1K
0.0%
Headquarters, USAISC US
199.209.192.0/20 4.1K
67.1%
Headquarters, USAISC US
143.69.16.0/21 2.0K
0.0%
Headquarters, USAISC US
155.28.152.0/21 2.0K
0.0%
Headquarters, USAISC US
155.28.232.0/21 2.0K
0.0%
Headquarters, USAISC US
155.29.224.0/21 2.0K
0.0%
Headquarters, USAISC US
155.152.144.0/21 2.0K
0.0%
Headquarters, USAISC US
155.213.208.0/21 2.0K
0.0%
Headquarters, USAISC US
199.209.224.0/21 2.0K
0.0%
Headquarters, USAISC US
155.26.204.0/22 1.0K
0.0%
Headquarters, USAISC US
155.28.124.0/22 1.0K
0.0%
Headquarters, USAISC US
155.28.228.0/22 1.0K
0.0%
Headquarters, USAISC US
155.152.144.0/22 1.0K
0.0%
Headquarters, USAISC US
199.209.156.0/22 1.0K
65.0%
Headquarters, USAISC US
143.69.138.0/23 512
0.0%
Headquarters, USAISC US
143.69.140.0/23 512
0.0%
Headquarters, USAISC US
199.209.154.0/23 512
67.4%
Headquarters, USAISC US
143.69.137.0/24 256
0.0%
Headquarters, USAISC US
143.69.138.0/24 256
0.0%
Headquarters, USAISC US
143.69.142.0/24 256
0.0%
Headquarters, USAISC US
143.69.144.0/24 256
0.0%
Headquarters, USAISC US
143.69.147.0/24 256
0.0%
Headquarters, USAISC US
155.28.151.0/24 256
0.0%
Headquarters, USAISC US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS1493 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
143.69.16.0/21 1,373,145 2026-09-10 15:07:05
143.69.147.0/24 1,044,043 2026-09-10 15:06:20
155.28.232.0/21 614,560 2026-09-10 15:06:16
155.26.208.0/20 462,777 2026-09-10 15:06:32
155.28.151.0/24 157,144 2026-09-10 06:49:50
155.26.204.0/22 125,704 2026-09-10 15:06:49
155.28.228.0/22 110,855 2026-08-13 10:20:59
155.28.152.0/21 78,432 2026-09-09 22:44:02
146.55.80.0/20 71,809 2026-09-10 15:06:27
143.69.137.0/24 64,572 2026-09-03 17:52:01
143.69.139.0/24 54,955 2026-09-10 15:06:23
155.26.176.0/20 44,259 2026-09-10 15:06:49
155.28.124.0/22 42,931 2026-09-10 15:07:05
155.28.160.0/19 40,547 2026-09-10 15:06:49
143.69.140.0/24 27,179 2026-09-10 15:06:27
143.69.142.0/24 27,135 2026-09-10 15:06:23
155.152.148.0/22 22,826 2026-09-10 15:07:05
143.69.138.0/24 22,777 2026-09-10 15:06:25
143.69.144.0/24 21,628 2026-09-10 15:06:20
143.69.141.0/24 21,625 2026-09-10 15:06:23
155.28.192.0/19 21,573 2026-09-10 15:06:32
155.19.192.0/18 21,569 2026-09-10 15:06:27
155.28.240.0/20 21,553 2026-09-10 15:06:27
155.152.176.0/20 21,534 2026-09-10 15:06:49
155.152.128.0/20 21,528 2026-09-10 15:07:05
155.29.224.0/21 21,520 2026-09-10 15:06:23
146.55.192.0/18 21,509 2026-09-10 15:07:05
199.209.192.0/20 19,680 2026-09-10 15:06:49
199.209.160.0/19 19,678 2026-09-10 15:06:32
199.209.156.0/22 19,658 2026-09-10 15:06:27
199.209.154.0/23 19,637 2026-09-10 15:06:27
158.13.160.0/19 19,256 2026-09-10 15:06:20
155.213.64.0/18 19,213 2026-09-10 15:07:05
155.213.208.0/21 19,182 2026-09-10 15:06:27
155.152.144.0/22 18,367 2026-09-10 15:07:05
155.213.211.0/24 5,567 2026-07-02 20:04:24
155.213.210.0/24 5,553 2026-07-02 20:04:24
155.152.150.0/24 5,127 2026-07-02 20:04:24

Frequently Asked Questions

What is AS1493?

AS1493 is an Autonomous System Number assigned to Headquarters, USAISC. 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 AS1493 announce?

AS1493 announces 131.8K IPv4 addresses distributed across 35 routed CIDR prefixes. The network is registered in United States.

Who operates AS1493?

AS1493 is operated by Headquarters, USAISC. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS1493 registered in?

AS1493 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: 2026-09-10 15:24:05 UTC
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