Autonomous System details

AS366

United States Department of Defense (DoD)  ·  mail.mil

United States

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AS366 – United States Department of Defense (DoD)

Field Value
Country United States
Website mail.mil
Hosted domains 0
IPv4 addresses 6,656
IPv6 addresses 310,693,935,640,959,697,899,487,232
ASN type Government
Registry arin
Allocated 37 years ago on Jun 30, 1989
Updated 6 months ago on Sep 12, 2025

IP Ranges

Netblock Company Num of IPs
55.82.132.0/22 Headquarters, USAISC 1,024
55.82.136.0/22 Headquarters, USAISC 1,024
55.82.148.0/22 Headquarters, USAISC 1,024
55.82.146.0/23 Headquarters, USAISC 512
55.82.5.0/24 Headquarters, USAISC 256
55.82.9.0/24 Headquarters, USAISC 256
55.82.10.0/24 Headquarters, USAISC 256
55.82.20.0/24 Headquarters, USAISC 256
55.82.53.0/24 Headquarters, USAISC 256
55.82.128.0/24 Headquarters, USAISC 256
55.82.129.0/24 Headquarters, USAISC 256
55.82.160.0/24 Headquarters, USAISC 256
55.82.200.0/24 Headquarters, USAISC 256
55.82.234.0/24 Headquarters, USAISC 256
55.82.245.0/24 Headquarters, USAISC 256
55.82.253.0/24 Headquarters, USAISC 256

Netblock Company
2608:10a:3600::/40 United States Department of Defense (DoD)
2001:480:280::/48 High Performance Computing
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WHOIS Details

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                                                ASHandle:       AS366
                                                OrgID:          AS366
                                                ASName:         AS366
                                                ASNumber:       AS366
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are no domains currently hosted on this ASN.

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Peers

There are 2 peers for this ASN.

Peers Name
AS306 United States Department of Defense (DoD)
AS668 United States Department of Defense (DoD)
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ASN API & Database

Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS306 United States Department of Defense (DoD)
AS668 United States Department of Defense (DoD)
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ASN API & Database

Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

1 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
2001:480:280:ddd3::245:26 AS366 United States Department of Defense (DoD) 5.36ms from Ashburn, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
5.193.100.238 AS5384 Emirates Internet 2.75ms from Al Fujairah City, AE
17.249.192.78 AS714 Apple Inc. 0.26ms from Ashburn, US
69.148.168.126 AS7018 AT&T Enterprises, LLC 7.32ms from Atlanta, US
81.244.254.62 AS5432 Proximus NV 0.46ms from Brussels, BE
102.235.130.94 AS13560 Charter Communications Inc 0.06ms from Chicago, US
104.190.109.158 AS7018 AT&T Enterprises, LLC 5.88ms from Chicago, US
64.43.1.238 AS15502 Vodafone Ireland Limited 3.37ms from Dublin, IE
93.214.17.222 AS3320 Deutsche Telekom AG 4.71ms from Duesseldorf, DE
84.157.19.206 AS3320 Deutsche Telekom AG 8.19ms from Frankfurt am Main, DE
136.0.152.78 AS8881 1&1 Versatel GmbH 0.49ms from Frankfurt am Main, DE
151.80.147.238 AS16276 OVH SAS 0.14ms from Gravelines, FR
113.177.254.62 AS45899 VNPT Corp 2.13ms from Hanoi, VN
171.224.24.222 AS7552 Viettel Group 1.33ms from Hanoi, VN
203.218.111.254 AS4760 HKT Limited 0.70ms from Hong Kong, HK
211.62.213.30 AS3786 LG DACOM Corporation 1.62ms from Incheon, KR
121.138.51.206 AS4766 Korea Telecom 1.10ms from Incheon, KR
67.225.161.78 AS32244 Liquid Web, L.L.C 0.18ms from Lansing, US
67.150.64.110 AS20115 Charter Communications LLC 1.83ms from Los Angeles, US
194.20.77.30 AS201917 Vodafone Group Services GmbH 0.72ms from Milan, IT
82.56.33.190 AS3269 Telecom Italia S.p.A. 3.42ms from Milan, IT
126.22.36.142 AS17676 SoftBank Corp. 3.80ms from Osaka, JP
218.11.142.30 AS4837 CHINA UNICOM China169 Backbone 14.25ms from Qingdao, CN
3.209.6.158 AS14618 Amazon.com, Inc. 0.23ms from Reston, US
13.223.242.78 AS14618 Amazon.com, Inc. 0.22ms from Reston, US
86.51.146.78 AS35819 Etihad Etisalat, a joint stock company 1.56ms from Riyadh, SA

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

$
traceroute -a -n -q1 -m5 55.82.10.21
traceroute to 55.82.10.21 (55.82.10.21): 5 hops max, 52 byte packets
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Tokyo, JP
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS366 at robtex.

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