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 6 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
2.132.98.56 AS9198 JSC Kazakhtelecom 2.11ms from Almaty, KZ
77.235.53.168 AS60781 LeaseWeb Netherlands B.V. 0.41ms from Amsterdam, NL
100.23.83.152 AS16509 Amazon.com, Inc. 0.51ms from Boardman, US
62.32.100.184 AS197832 NAVISITE OPCO LLC 1.16ms from London, GB
138.100.198.232 AS766 RedIRIS Autonomous System 0.80ms from Madrid, ES
73.244.167.24 AS7922 Comcast Cable Communications, LLC 4.61ms from Miami, US
174.26.237.136 AS209 CenturyLink Communications, LLC 2.35ms from Phoenix, US
177.143.240.8 AS28573 Claro NXT Telecomunicacoes Ltda 4.40ms from Rio de Janeiro, BR
85.46.87.40 AS3269 Telecom Italia S.p.A. 4.47ms from Rome, IT
47.116.74.56 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 4.11ms from Shanghai, CN
51.8.31.88 AS8075 Microsoft Corporation 0.43ms from Ashburn, US
111.164.200.248 AS4837 CHINA UNICOM China169 Backbone 5.31ms from Beijing, CN
154.179.31.184 AS8452 TE-AS 4.42ms from Cairo, EG
74.138.87.104 AS10796 Charter Communications Inc 9.57ms from Columbus, US
42.116.137.8 AS18403 FPT Telecom Company 1.36ms from Ho Chi Minh City, VN
168.210.177.168 AS20011 Dimension Data 1.47ms from Johannesburg, ZA
18.100.182.248 AS16509 Amazon.com, Inc. 5.60ms from Madrid, ES
82.20.226.40 AS5089 Virgin Media Limited 7.83ms from Maidenhead, GB
124.105.16.168 AS9299 Philippine Long Distance Telephone Company 2.35ms from Manila, PH
159.89.235.120 AS14061 DigitalOcean, LLC 0.20ms from New York City, US
143.198.9.8 AS14061 DigitalOcean, LLC 0.29ms from New York City, US
183.180.52.8 AS2519 ARTERIA Networks Corporation 5.17ms from Osaka, JP
90.91.105.232 AS3215 Orange S.A. 1.87ms from Paris, FR
112.168.242.136 AS4766 Korea Telecom 4.01ms from Seoul, KR
15.134.157.72 AS16509 Amazon.com, Inc. 0.11ms from Sydney, AU

Traceroute

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

$
traceroute -a -n -q1 -m5 55.53.231.97
traceroute to 55.53.231.97 (55.53.231.97): 5 hops max, 52 byte packets
1 [AS15169] 142.251.49.69 32.887 ms
2 [AS3356] 4.68.110.133 23.294 ms
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Council Bluffs, 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 AS328 at robtex.

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