Autonomous System details

AS328

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

United States
    Stub AS Icon Stub AS

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AS328 – United States Department of Defense (DoD)

Field Value
Country United States
Website mail.mil
Hosted domains 1
IPv4 addresses 65,536
IPv6 addresses 0
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
55.53.0.0/16 Headquarters, USAISC 65,536
55.53.221.0/24 Headquarters, USAISC 256
55.53.222.0/24 Headquarters, USAISC 256
55.53.223.0/24 Headquarters, USAISC 256
55.53.224.0/24 Headquarters, USAISC 256
55.53.225.0/24 Headquarters, USAISC 256
55.53.226.0/24 Headquarters, USAISC 256

There are no known IPv6 addresses belonging to this network

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IP Ranges API

WHOIS Details

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                                                ASHandle:       AS328
                                                OrgID:          AS328
                                                ASName:         AS328
                                                ASNumber:       AS328
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There is 1 domain name hosted across 1 IP address on this ASN.

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IP Address Domain Domains on this IP
55.53.205.55 ██████████ 1

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Peers

There is 1 peer for this ASN.

Peers Name
AS306 United States Department of Defense (DoD)
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Upstreams

There is 1 peer for this ASN.

upstreams Name
AS306 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
97.151.173.152 AS6167 Verizon Business 13.32ms from Ashburn, US
183.241.139.40 AS56048 China Mobile Communicaitons Corporation 3.75ms from Beijing, CN
91.177.53.232 AS5432 Proximus NV 2.61ms from Brussels, BE
47.222.203.216 AS19108 Optimum 8.03ms from Dallas, US
88.76.213.56 AS3209 Vodafone GmbH 5.23ms from Frankfurt am Main, DE
49.131.123.40 AS17924 SmarTone Mobile Communications Ltd 14.41ms from Hong Kong, HK
183.117.125.88 AS4766 Korea Telecom 1.90ms from Incheon, KR
69.106.100.8 AS7018 AT&T Enterprises, LLC 1.70ms from Los Angeles, US
89.242.71.216 AS13285 TalkTalk Communications Limited 6.16ms from Manchester, GB
114.173.117.24 AS4713 NTT DOCOMO BUSINESS,Inc. 5.28ms from Osaka, JP
175.28.244.56 AS7679 QTnet,Inc. 8.25ms from Osaka, JP
182.77.2.232 AS24560 Bharti Airtel Ltd., Telemedia Services 10.98ms from Saint Thomas Mount, IN
150.91.172.120 AS59125 FAMILY NET JAPAN INCORPORATED 2.01ms from Tokyo, JP
52.177.254.200 AS8075 Microsoft Corporation 0.24ms from Boydton, US
72.49.76.56 AS6181 Cincinnati Bell Telephone Company LLC 7.37ms from Chicago, US
158.41.168.216 AS1448 United Cooperative Services 6.16ms from Dallas, US
217.80.6.40 AS3320 Deutsche Telekom AG 8.73ms from Frankfurt am Main, DE
8.143.159.248 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 2.44ms from Hohhot, CN
81.162.230.120 AS44032 PP "TRC"City TV center" 1.15ms from Kyiv, UA
108.216.176.168 AS7018 AT&T Enterprises, LLC 17.33ms from Los Angeles, US
107.216.9.136 AS7018 AT&T Enterprises, LLC 19.47ms from Los Angeles, US
164.68.197.24 AS23089 Hotwire Communications 2.15ms from Miami, US
185.142.153.88 AS203201 INFRASTRUCTURE ITALIA COLO S.R.L. 1.02ms from Milan, IT
189.158.85.56 AS8151 UNINET 1.93ms from Monterrey, MX
49.68.1.40 AS4134 CHINANET-BACKBONE 8.77ms from Nanjing, CN

Traceroute

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

$
traceroute -a -n -q1 -f4 -m8 55.53.43.98
traceroute to 55.53.43.98 (55.53.43.98): 8 hops max, 52 byte packets
4 [AS174] 130.117.0.33 1.361 ms
5 [AS3356] 4.68.39.81 1.229 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Paris, FR
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 AS328 at robtex.

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