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 311,902,861,460,574,328,400,000,000
ASN type Government
Registry arin
Allocated 37 years ago on Jun 30, 1989
Updated 7 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
2608:10b:3823::/48 United States Department of Defense (DoD)
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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:dddd::246:42 AS366 United States Department of Defense (DoD) 0.38ms 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
52.149.235.110 AS8075 Microsoft Corporation 0.46ms from Ashburn, US
50.201.221.254 AS7725 Comcast Cable Communications, LLC 0.98ms from Atlanta, US
134.255.6.206 AS5483 Magyar Telekom Plc. 6.15ms from Budapest, HU
102.46.76.222 AS8452 TE-AS 3.44ms from Cairo, EG
108.90.245.78 AS7018 AT&T Enterprises, LLC 18.01ms from Chicago, US
132.235.65.254 AS17135 Ohio University 2.71ms from Columbus, US
34.30.73.254 AS396982 Google LLC 0.12ms from Council Bluffs, US
136.49.147.94 AS16591 Google Fiber Inc. 5.10ms from Dallas, US
90.187.178.126 AS3209 Vodafone GmbH 1.03ms from Hamburg, DE
42.98.252.254 AS4760 HKT Limited 0.74ms from Hong Kong, HK
175.197.183.126 AS4766 Korea Telecom 1.14ms from Incheon, KR
182.186.184.254 AS17557 Pakistan Telecommunication Company Limited 16.57ms from Islamabad, PK
188.230.236.62 AS34779 T-2, d.o.o. 2.67ms from Ljubljana, SI
38.34.30.254 AS174 Cogent Communications, LLC 1.02ms from Los Angeles, US
207.233.221.190 AS12479 Orange Espagne SA 9.18ms from Madrid, ES
92.172.133.254 AS12479 Orange Espagne SA 10.27ms from Madrid, ES
99.169.157.206 AS7018 AT&T Enterprises, LLC 18.67ms from Miami, US
95.238.67.126 AS3269 Telecom Italia S.p.A. 2.41ms from Milan, IT
185.249.183.94 AS34081 INCUBATEC GmbH - Srl 1.11ms from Munich, DE
31.0.143.62 AS8374 Polkomtel Sp. z o.o. 12.41ms from Poznan, PL
177.243.187.14 AS13999 Mega Cable, S.A. de C.V. 2.32ms from Santiago de Querétaro, MX
52.163.49.222 AS8075 Microsoft Corporation 0.45ms from Singapore, SG
61.114.191.190 AS10006 SECOM Trust Systems Co.,Ltd. 0.76ms from Tokyo, JP
1.33.40.222 AS2514 NTT PC Communications, Inc. 6.97ms from Tokyo, JP
118.83.153.222 AS4721 JCOM Co., Ltd. 13.26ms from Tokyo, JP

Traceroute

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

$
traceroute -a -n -q1 -f2 -m8 55.82.5.67
traceroute to 55.82.5.67 (55.82.5.67): 8 hops max, 52 byte packets
2 [AS206170] 188.66.61.9 0.196 ms
3 *
4 *
5 [AS6939] 216.66.88.122 2.785 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Stockholm, SE
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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