Autonomous System details

AS356

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

United States

Stub AS

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AS356 – United States Department of Defense (DoD)

Field	Value
Country	United States
Website	mail.mil
Hosted domains	0
IPv4 addresses	131,072
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	5 months ago on Sep 12, 2025

Netblock	Company	Num of IPs
55.48.0.0/16	Headquarters, USAISC	65,536
55.89.0.0/16	Headquarters, USAISC	65,536
55.89.174.0/23	Headquarters, USAISC	512
55.89.234.0/23	Headquarters, USAISC	512
55.48.200.0/24	Headquarters, USAISC	256
55.89.1.0/24	Headquarters, USAISC	256
55.89.2.0/24	Headquarters, USAISC	256
55.89.4.0/24	Headquarters, USAISC	256
55.89.6.0/24	Headquarters, USAISC	256
55.89.7.0/24	Headquarters, USAISC	256
55.89.8.0/24	Headquarters, USAISC	256
55.89.9.0/24	Headquarters, USAISC	256
55.89.10.0/24	Headquarters, USAISC	256
55.89.12.0/24	Headquarters, USAISC	256
55.89.14.0/24	Headquarters, USAISC	256
55.89.15.0/24	Headquarters, USAISC	256
55.89.16.0/24	Headquarters, USAISC	256
55.89.17.0/24	Headquarters, USAISC	256
55.89.18.0/24	Headquarters, USAISC	256
55.89.19.0/24	Headquarters, USAISC	256
55.89.20.0/24	Headquarters, USAISC	256
55.89.21.0/24	Headquarters, USAISC	256
55.89.22.0/24	Headquarters, USAISC	256
55.89.23.0/24	Headquarters, USAISC	256
55.89.24.0/24	Headquarters, USAISC	256
55.89.25.0/24	Headquarters, USAISC	256
55.89.26.0/24	Headquarters, USAISC	256
55.89.27.0/24	Headquarters, USAISC	256
55.89.28.0/24	Headquarters, USAISC	256
55.89.31.0/24	Headquarters, USAISC	256
55.89.32.0/24	Headquarters, USAISC	256
55.89.33.0/24	Headquarters, USAISC	256
55.89.34.0/24	Headquarters, USAISC	256
55.89.36.0/24	Headquarters, USAISC	256
55.89.37.0/24	Headquarters, USAISC	256
55.89.38.0/24	Headquarters, USAISC	256
55.89.39.0/24	Headquarters, USAISC	256
55.89.40.0/24	Headquarters, USAISC	256
55.89.41.0/24	Headquarters, USAISC	256
55.89.42.0/24	Headquarters, USAISC	256
55.89.43.0/24	Headquarters, USAISC	256
55.89.44.0/24	Headquarters, USAISC	256
55.89.45.0/24	Headquarters, USAISC	256
55.89.48.0/24	Headquarters, USAISC	256
55.89.49.0/24	Headquarters, USAISC	256
55.89.50.0/24	Headquarters, USAISC	256
55.89.51.0/24	Headquarters, USAISC	256
55.89.53.0/24	Headquarters, USAISC	256
55.89.54.0/24	Headquarters, USAISC	256
55.89.57.0/24	Headquarters, USAISC	256
55.89.58.0/24	Headquarters, USAISC	256
55.89.60.0/24	Headquarters, USAISC	256
55.89.61.0/24	Headquarters, USAISC	256
55.89.62.0/24	Headquarters, USAISC	256
55.89.63.0/24	Headquarters, USAISC	256
55.89.65.0/24	Headquarters, USAISC	256
55.89.66.0/24	Headquarters, USAISC	256
55.89.67.0/24	Headquarters, USAISC	256
55.89.69.0/24	Headquarters, USAISC	256
55.89.70.0/24	Headquarters, USAISC	256
55.89.73.0/24	Headquarters, USAISC	256
55.89.75.0/24	Headquarters, USAISC	256
55.89.77.0/24	Headquarters, USAISC	256
55.89.78.0/24	Headquarters, USAISC	256
55.89.79.0/24	Headquarters, USAISC	256
55.89.80.0/24	Headquarters, USAISC	256
55.89.82.0/24	Headquarters, USAISC	256
55.89.83.0/24	Headquarters, USAISC	256
55.89.85.0/24	Headquarters, USAISC	256
55.89.86.0/24	Headquarters, USAISC	256
55.89.87.0/24	Headquarters, USAISC	256
55.89.88.0/24	Headquarters, USAISC	256
55.89.89.0/24	Headquarters, USAISC	256
55.89.91.0/24	Headquarters, USAISC	256
55.89.92.0/24	Headquarters, USAISC	256
55.89.93.0/24	Headquarters, USAISC	256
55.89.94.0/24	Headquarters, USAISC	256
55.89.95.0/24	Headquarters, USAISC	256
55.89.96.0/24	Headquarters, USAISC	256
55.89.98.0/24	Headquarters, USAISC	256
55.89.99.0/24	Headquarters, USAISC	256
55.89.105.0/24	Headquarters, USAISC	256
55.89.149.0/24	Headquarters, USAISC	256
55.89.150.0/24	Headquarters, USAISC	256
55.89.155.0/24	Headquarters, USAISC	256
55.89.156.0/24	Headquarters, USAISC	256
55.89.160.0/24	Headquarters, USAISC	256
55.89.170.0/24	Headquarters, USAISC	256
55.89.180.0/24	Headquarters, USAISC	256
55.89.200.0/24	Headquarters, USAISC	256
55.89.205.0/24	Headquarters, USAISC	256
55.89.210.0/24	Headquarters, USAISC	256
55.89.219.0/24	Headquarters, USAISC	256
55.89.220.0/24	Headquarters, USAISC	256
55.89.221.0/24	Headquarters, USAISC	256
55.89.222.0/24	Headquarters, USAISC	256
55.89.223.0/24	Headquarters, USAISC	256
55.89.224.0/24	Headquarters, USAISC	256
55.89.225.0/24	Headquarters, USAISC	256
55.89.226.0/24	Headquarters, USAISC	256
55.89.227.0/24	Headquarters, USAISC	256
55.89.228.0/24	Headquarters, USAISC	256
55.89.229.0/24	Headquarters, USAISC	256
55.89.232.0/24	Headquarters, USAISC	256
55.89.238.0/24	Headquarters, USAISC	256
55.89.240.0/24	Headquarters, USAISC	256
55.89.244.0/24	Headquarters, USAISC	256
55.89.245.0/24	Headquarters, USAISC	256
55.89.246.0/24	Headquarters, USAISC	256
55.89.247.0/24	Headquarters, USAISC	256
55.89.250.0/24	Headquarters, USAISC	256
55.89.252.0/24	Headquarters, USAISC	256
55.89.253.0/24	Headquarters, USAISC	256

Netblock	Company
2608:18b:5400::/40	United States Department of Defense (DoD)

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WHOIS Details

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                                                ASHandle:       AS356
                                                OrgID:          AS356
                                                ASName:         AS356
                                                ASNumber:       AS356
                                                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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Hosted Domains API & Database

Peers

There is 1 peer for this ASN.

Peers	Name
AS306	United States Department of Defense (DoD)

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ASN API & Database

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
3.150.188.180	AS16509 Amazon.com, Inc.	`0.13ms` from Columbus, US
2.248.246.20	AS3301 Telia Company AB	`1.49ms` from Copenhagen, DK
192.139.255.100	AS30688 FastTrack Communications Inc.	`7.19ms` from Denver, US
98.142.105.196	AS33182 HostDime.com, Inc.	`0.16ms` from Orlando, US
121.86.199.180	AS17511 OPTAGE Inc.	`2.81ms` from Osaka, JP
148.255.41.212	AS6400 Compañía Dominicana de Teléfonos S. A.	`3.09ms` from Santo Domingo, DO
37.157.94.148	AS3249 Telia Eesti AS	`7.08ms` from Tallinn, EE
108.156.68.4	AS16509 Amazon.com, Inc.	`0.19ms` from Amsterdam, NL
35.84.167.20	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
187.207.214.228	AS8151 UNINET	`12.56ms` from Cancún, MX
195.211.98.52	AS204957 GREEN FLOID LLC	`0.01ms` from Chicago, US
79.125.32.100	AS16509 Amazon.com, Inc.	`0.17ms` from Dublin, IE
84.58.246.148	AS3209 Vodafone GmbH	`4.68ms` from Duesseldorf, DE
146.60.96.84	AS3209 Vodafone GmbH	`7.51ms` from Hamburg, DE
63.250.45.228	AS22612 Namecheap, Inc.	`9.93ms` from Los Angeles, US
195.239.78.164	AS3216 PJSC Vimpelcom	`0.60ms` from Moscow, RU
178.128.145.180	AS14061 DigitalOcean, LLC	`0.22ms` from New York City, US
61.197.115.148	AS2514 NTT PC Communications, Inc.	`2.34ms` from Osaka, JP
73.186.171.116	AS7922 Comcast Cable Communications, LLC	`5.80ms` from Providence, US
137.135.56.68	AS8075 Microsoft Corporation	`0.62ms` from San Jose, US
175.252.48.196	AS4766 Korea Telecom	`1.45ms` from Seoul, KR
4.200.55.212	AS8075 Microsoft Corporation	`0.66ms` from Sydney, AU
114.41.120.36	AS3462 Data Communication Business Group	`2.98ms` from Taichung, TW
23.16.139.228	AS852 TELUS Communications Inc.	`3.81ms` from Vancouver, CA
105.110.53.148	AS36947 Telecom Algeria	`12.80ms` from Algiers, DZ

Traceroute

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

traceroute -a -n -q1 -m5 55.89.117.96

traceroute to 55.89.117.96 (55.89.117.96): 5 hops max, 52 byte packets

1 [AS208450] 45.136.59.1 4.881 ms

2 [AS41371] 88.151.180.149 0.451 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Aktau, KZ

On February 7th 2026

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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 AS356 at robtex.

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