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	36 years ago on Jun 30, 1989
Updated	3 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
55.89.29.0/24	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
55.89.47.0/24	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
55.89.78.0/24	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
223.189.214.100	AS45609 Bharti Airtel Ltd. AS for GPRS Service	`12.11ms` from Delhi, IN
1.53.116.36	AS18403 FPT Telecom Company	`0.48ms` from Hanoi, VN
183.179.230.4	AS9269 Hong Kong Broadband Network Ltd.	`0.97ms` from Hong Kong, HK
81.153.151.196	AS2856 British Telecommunications PLC	`6.01ms` from London, GB
64.59.124.164	AS27589 MOJOHOST	`0.13ms` from Miami, US
24.228.175.164	AS6128 Cablevision Systems Corp.	`8.52ms` from New York City, US
153.145.131.52	AS4713 NTT DOCOMO BUSINESS,Inc.	`10.19ms` from Osaka, JP
210.197.251.148	AS4725 SoftBank Corp.	`15.30ms` from Osaka, JP
54.205.61.196	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
175.236.82.68	AS4766 Korea Telecom	`2.42ms` from Seoul, KR
211.251.149.100	AS4766 Korea Telecom	`8.00ms` from Seoul, KR
119.213.165.244	AS4766 Korea Telecom	`1.78ms` from Seoul, KR
181.123.130.52	AS23201 Telecel S.A.	`7.63ms` from Asuncion, PY
24.197.142.228	AS20115 Charter Communications LLC	`11.37ms` from Atlanta, US
35.226.26.4	AS396982 Google LLC	`0.13ms` from Council Bluffs, US
173.205.223.20	AS396305 Clarksville Connected Utilities	`9.80ms` from Dallas, US
167.206.19.4	AS6128 Cablevision Systems Corp.	`1.77ms` from New York City, US
218.222.71.100	AS2516 KDDI CORPORATION	`12.96ms` from Osaka, JP
58.94.161.228	AS4713 NTT DOCOMO BUSINESS,Inc.	`7.88ms` from Osaka, JP
77.233.97.4	AS42117 INOLIA S.A.	`8.59ms` from Paris, FR
222.4.63.132	AS2516 KDDI CORPORATION	`6.76ms` from Tokyo, JP
91.249.20.116	AS9145 EWE TEL GmbH	`4.30ms` from Hamburg, DE
183.145.105.228	AS4134 CHINANET-BACKBONE	`8.42ms` from Hangzhou, CN
125.119.232.180	AS4134 CHINANET-BACKBONE	`5.02ms` from Hangzhou, CN
138.248.240.180	AS31655 Gamma Telecom Holdings Ltd	`0.41ms` from London, GB

Traceroute

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

traceroute -a -n -q1 -m7 55.48.75.220

traceroute to 55.48.75.220 (55.48.75.220): 7 hops max, 52 byte packets

1 [AS15169] 142.250.214.161 9.871 ms

2 *

3 *

4 [AS3356] 64.159.250.178 24.284 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Columbus, US

On December 6th 2025

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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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