Autonomous System details

AS321

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

United States

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AS321 – United States Department of Defense (DoD)

Field Value
Country United States
Website mail.mil
Hosted domains 0
IPv4 addresses 66,304
IPv6 addresses 309,485,009,821,345,068,724,781,056
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
55.24.0.0/16 Headquarters, USAISC 65,536
55.24.20.0/24 Headquarters, USAISC 256
55.24.51.0/24 Headquarters, USAISC 256
55.24.87.0/24 Headquarters, USAISC 256
55.24.229.0/24 Headquarters, USAISC 256
55.24.230.0/24 Headquarters, USAISC 256
55.24.231.0/24 Headquarters, USAISC 256
55.24.232.0/24 Headquarters, USAISC 256
55.24.234.0/24 Headquarters, USAISC 256
55.24.236.0/24 Headquarters, USAISC 256
55.24.251.0/24 Headquarters, USAISC 256
139.241.3.0/24 DoD Network Information Center 256
139.241.58.0/24 DoD Network Information Center 256
139.241.59.0/24 DoD Network Information Center 256

Netblock Company
2608:14a:3100::/40 United States Department of Defense (DoD)
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IP Ranges API

WHOIS Details

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                                                ASHandle:       AS321
                                                OrgID:          AS321
                                                ASName:         AS321
                                                ASNumber:       AS321
                                                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 5 peers for this ASN.

Peers Name
AS27064 United States Department of Defense (DoD)
AS27065 United States Department of Defense (DoD)
AS27066 United States Department of Defense (DoD)
AS306 United States Department of Defense (DoD)
AS5374 United States Department of Defense (DoD)
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ASN API & Database

Upstreams

There are 4 upstreams for this ASN.

upstreams Name
AS27064 United States Department of Defense (DoD)
AS27065 United States Department of Defense (DoD)
AS27066 United States Department of Defense (DoD)
AS306 United States Department of Defense (DoD)
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ASN API & Database

Downstreams

There is 1 peer for this ASN.

Downstreams Name
AS5374 United States Department of Defense (DoD)
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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
41.155.64.1 AS29614 Ghana Telecommunications Company Limited 1.24ms from Accra, GH
188.91.156.1 AS50266 Odido Netherlands B.V. 3.77ms from Amsterdam, NL
85.17.11.33 AS60781 LeaseWeb Netherlands B.V. 0.25ms from Amsterdam, NL
108.39.98.1 AS701 Verizon Business 9.70ms from Ashburn, US
71.226.183.1 AS7922 Comcast Cable Communications, LLC 4.72ms from Ashburn, US
96.30.84.1 AS136393 Symphony Communication (Thailand) PCL. 0.71ms from Bangkok, TH
167.114.16.49 AS16276 OVH SAS 0.09ms from Beauharnois, CA
123.249.94.225 AS55990 Huawei Cloud Service data center 3.64ms from Beijing, CN
93.87.225.1 AS8400 TELEKOM SRBIJA a.d. 0.48ms from Belgrade, RS
204.111.210.1 AS4922 Shenandoah Cable Television LLC 10.00ms from Berkeley Springs, US
130.149.146.1 AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. 1.25ms from Berlin, DE
73.68.184.1 AS7922 Comcast Cable Communications, LLC 1.38ms from Boston, US
31.5.74.1 AS12302 Vodafone Romania S.A. 7.74ms from Bucharest, RO
190.194.216.1 AS7303 Telecom Argentina S.A. 11.31ms from Buenos Aires, AR
208.66.211.1 AS22322 CABLE CO-OP 4.69ms from Buffalo, US
209.89.37.1 AS852 TELUS Communications Inc. 0.72ms from Calgary, CA
13.246.252.145 AS16509 Amazon.com, Inc. 0.14ms from Cape Town, ZA
196.11.98.1 AS2018 TENET (The UNINET Project) 2.26ms from Cape Town, ZA
41.157.177.1 AS37168 Cell C (Pty) Ltd 2.21ms from Cape Town, ZA
1.191.100.129 AS4837 CHINA UNICOM China169 Backbone 11.37ms from Changchun, CN
68.143.148.97 AS7029 Windstream Communications LLC 9.02ms from Chicago, US
219.153.168.1 AS4134 CHINANET-BACKBONE 2.43ms from Chongqing, CN
190.227.205.129 AS7303 Telecom Argentina S.A. 0.42ms from Cordoba, AR
64.130.73.129 AS13693 Vexus Fiber 9.93ms from Dallas, US
64.234.12.1 AS35986 Vyve Broadband 4.15ms from Dallas, US

Traceroute

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

$
traceroute -a -n -q1 -m4 55.24.224.159
traceroute to 55.24.224.159 (55.24.224.159): 4 hops max, 52 byte packets
1 [AS399244] 66.59.208.1 0.464 ms
2 *
3 *
4 *
Measurement taken from IPinfo ProbeNet in Falkenstein, DE
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 AS321 at robtex.

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