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 65,536
IPv6 addresses 310,693,935,640,959,699,200,000,000
ASN type Government
Registry arin
Allocated 37 years ago on Jun 30, 1989
Updated 8 months ago on Sep 12, 2025

IP Ranges

Netblock Company Num of IPs
55.82.0.0/16 Headquarters, USAISC 65,536
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
55.82.140.0/24 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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Hosted Domains API & Database

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

No IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

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
87.233.10.126 AS15703 TrueServer BV AS number 0.51ms from Amsterdam, NL
108.51.73.14 AS701 Verizon Business 2.13ms from Ashburn, US
97.227.248.254 AS6167 Verizon Business 14.19ms from Atlanta, US
50.201.221.254 AS7725 Comcast Cable Communications, LLC 0.98ms from Atlanta, US
1.91.231.238 AS17429 BEIJING GEHUA CATV NETWORK CO.LTD 10.51ms from Beijing, CN
178.24.50.254 AS3209 Vodafone GmbH 3.18ms from Berlin, DE
209.225.103.254 AS13337 e-vergent.com LLC 4.73ms from Chicago, US
32.143.108.158 AS7018 AT&T Enterprises, LLC 0.56ms from Dallas, US
85.31.138.62 AS35299 C2k 3.36ms from Dublin, IE
20.54.105.222 AS8075 Microsoft Corporation 0.14ms from Dublin, IE
116.49.7.254 AS4760 HKT Limited 0.74ms from Hong Kong, HK
211.211.233.46 AS9318 SK Broadband Co Ltd 3.47ms from Incheon, KR
88.249.222.62 AS9121 Turk Telekomunikasyon Anonim Sirketi 4.95ms from Istanbul, TR
100.37.54.110 AS701 Verizon Business 3.03ms from New York City, US
5.130.174.62 AS31200 Novotelecom Ltd 1.24ms from Novosibirsk, RU
4.242.202.78 AS8075 Microsoft Corporation 0.18ms from Phoenix, US
187.131.100.158 AS8151 UNINET 3.65ms from Santiago de Queretaro, MX
52.65.176.238 AS16509 Amazon.com, Inc. 0.14ms from Sydney, AU
126.36.202.142 AS17676 SoftBank Corp. 4.00ms from Tokyo, JP
193.126.39.158 AS1897 NOS COMUNICACOES, S.A. 0.41ms from Braga, PT
89.122.166.254 AS9050 Orange Romania S.A. 0.19ms from Bucharest, RO
105.159.204.238 AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM 2.09ms from Casablanca, MA
93.116.223.14 AS8926 Moldtelecom SA 2.46ms from Chisinau, MD
162.229.248.142 AS7018 AT&T Enterprises, LLC 1.83ms from Dallas, US
34.255.13.14 AS16509 Amazon.com, Inc. 0.38ms from Dublin, IE

Traceroute

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

$
traceroute -a -n -q1 -m7 55.82.22.195
traceroute to 55.82.22.195 (55.82.22.195): 7 hops max, 52 byte packets
2 *
3 *
4 [AS3356] 4.39.210.90 68.434 ms
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Ashburn, US
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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