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 5 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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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
186.115.201.56 AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 3.62ms from Bogota, CO
39.43.159.152 AS17557 Pakistan Telecommunication Company Limited 1.41ms from Islamabad, PK
88.218.189.88 AS56485 TheHost LLC 0.87ms from Kyiv, UA
64.56.72.56 AS22439 Perfect International, Inc 0.82ms from Los Angeles, US
83.45.165.40 AS3352 TELEFONICA DE ESPANA S.A.U. 8.93ms from Madrid, ES
153.229.72.104 AS4713 NTT DOCOMO BUSINESS,Inc. 2.83ms from Osaka, JP
71.223.13.136 AS209 CenturyLink Communications, LLC 2.48ms from Phoenix, US
72.154.32.40 AS8075 Microsoft Corporation 0.48ms from Quincy, US
84.49.167.168 AS15659 NextGenTel AS 2.12ms from Sandefjord, NO
113.224.97.24 AS4837 CHINA UNICOM China169 Backbone 2.13ms from Tieling, CN
170.253.50.200 AS15704 XTRA TELECOM S.A. 1.36ms from Valencia, ES
209.182.213.104 AS54641 InMotion Hosting, Inc. 0.30ms from Ashburn, US
175.232.12.104 AS4766 Korea Telecom 1.55ms from Incheon, KR
61.80.184.168 AS4766 Korea Telecom 5.01ms from Incheon, KR
46.216.49.72 AS25106 Mobile TeleSystems JLLC 1.05ms from Minsk, BY
1.172.237.248 AS3462 Data Communication Business Group 4.29ms from Taichung, TW
97.235.193.8 AS6167 Verizon Business 10.12ms from Washington, US
170.9.249.40 AS31898 Oracle Corporation 0.31ms from Chicago, US
222.180.163.168 AS134420 Chongqing Telecom 0.38ms from Chongqing, CN
8.136.155.24 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 4.81ms from Hangzhou, CN
105.244.85.104 AS36994 Vodacom 3.19ms from Johannesburg, ZA
5.59.107.232 AS56400 SPD Chernega Aleksandr Anatolevich 6.79ms from Kyiv, UA
94.133.22.104 AS2860 NOS COMUNICACOES, S.A. 16.56ms from Lisbon, PT
108.216.176.168 AS7018 AT&T Enterprises, LLC 17.31ms from Los Angeles, US
176.191.167.184 AS5410 Bouygues Telecom SA 5.45ms from Marseille, FR

Traceroute

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

$
traceroute -a -n -q1 -f4 -m7 55.53.0.18
traceroute to 55.53.0.18 (55.53.0.18): 7 hops max, 52 byte packets
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Tieling, CN
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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