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Autonomous System

AS1493

Headquarters, USAISC

Announced IPs
129,792
CIDR prefixes
33
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
155.28.232.0/21 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
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 1,174,213 2026-07-13 06:46:37
155.28.232.0/21 582,760 2026-07-13 06:46:19
155.28.151.0/24 151,256 2026-05-27 01:01:58
155.26.208.0/20 150,753 2026-07-24 05:03:20
155.28.228.0/22 100,322 2026-07-24 05:02:52
155.26.204.0/22 86,298 2026-07-24 05:03:20
146.55.80.0/20 51,528 2026-07-24 05:03:20
155.26.176.0/20 33,152 2026-07-24 05:02:52
155.28.160.0/19 29,411 2026-07-24 05:02:52
143.69.137.0/24 28,479 2026-07-24 05:02:52
143.69.139.0/24 26,412 2026-07-21 09:08:15
155.28.124.0/22 24,709 2026-07-24 05:02:52
143.69.147.0/24 19,162 2026-07-24 05:02:52
143.69.140.0/24 16,036 2026-07-24 05:02:52
143.69.142.0/24 12,773 2026-07-24 05:02:52
143.69.138.0/24 11,881 2026-07-24 05:02:52
155.152.148.0/22 11,134 2026-07-24 05:02:52
155.152.144.0/22 11,011 2026-07-24 05:03:23
155.19.192.0/18 10,465 2026-07-24 05:02:52
143.69.141.0/24 10,458 2026-07-24 05:02:52
143.69.144.0/24 10,458 2026-07-24 05:02:52
155.152.176.0/20 10,447 2026-07-24 05:02:52
146.55.192.0/18 10,433 2026-07-24 05:02:52
155.28.240.0/20 10,432 2026-07-24 05:02:52
155.28.192.0/19 10,429 2026-07-24 05:02:52
155.152.128.0/20 10,411 2026-07-24 05:02:52
155.29.224.0/21 10,402 2026-07-24 05:02:52
199.209.160.0/19 10,386 2026-07-24 05:02:52
199.209.154.0/23 10,376 2026-07-24 05:02:52
199.209.192.0/20 10,375 2026-07-24 05:02:52
199.209.156.0/22 10,361 2026-07-24 05:02:52
158.13.160.0/19 8,225 2026-07-24 05:02:52
155.213.64.0/18 8,129 2026-07-24 05:02:52
155.213.208.0/21 8,124 2026-07-24 05:02:52
155.28.152.0/21 5,912 2026-06-03 21:30:42
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 129.8K IPv4 addresses distributed across 33 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: 2026-07-24 05:40:31 UTC
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