Autonomous System details

AS356

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

United States

Stub AS

Need more data or want to access it via API or data downloads? Sign up to get free access

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	6 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)

Get this data and more with IPinfo's powerful IP Ranges API - quickly and easily identify company-owned IP ranges.

IP Ranges API

WHOIS Details

Join for free to view WHOIS details ›


                                                ASHandle:       AS356
                                                OrgID:          AS356
                                                ASName:         AS356
                                                ASNumber:       AS356
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

Get this data and more with IPinfo's WHOIS product - effortless access to POCs, ORGs, and Networks, for actionable intelligence.

IP WHOIS API & Database

Hosted Domains

There are no domains currently hosted on this ASN.

Discover all domains hosted on a single IP address with IPinfo's powerful Hosted Domains (Reverse IP) solution.

Useful for Cybersecurity

Hosted Domains API & Database

Peers

There is 1 peer for this ASN.

Peers	Name
AS306	United States Department of Defense (DoD)

Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

ASN API & Database

Upstreams

There is 1 peer for this ASN.

upstreams	Name
AS306	United States Department of Defense (DoD)

Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

ASN API & Database

Downstreams

There are no downstreams for this ASN.

Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

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
172.173.162.4	AS8075 Microsoft Corporation	`0.55ms` from Ashburn, US
89.12.6.164	AS6805 Telefonica Germany GmbH & Co.OHG	`2.85ms` from Berlin, DE
91.82.233.100	AS20845 DIGI Tavkozlesi es Szolgaltato Kft.	`4.70ms` from Budapest, HU
105.159.126.196	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`1.79ms` from Casablanca, MA
112.194.149.36	AS4837 CHINA UNICOM China169 Backbone	`7.45ms` from Chengdu, CN
45.81.145.100	AS208859 FACT LTD	`2.87ms` from Erbil, IQ
5.58.168.180	AS16223 MAXNET TELECOM, LTD	`5.74ms` from Kyiv, UA
2.123.136.180	AS5607 Sky UK Limited	`8.10ms` from London, GB
72.187.178.4	AS33363 Charter Communications, Inc	`8.65ms` from Orlando, US
70.126.147.68	AS33363 Charter Communications, Inc	`10.17ms` from Orlando, US
136.36.115.244	AS16591 Google Fiber Inc.	`1.45ms` from Salt Lake City, US
58.140.221.212	AS10036 DLIVE	`1.53ms` from Seoul, KR
106.187.118.20	AS2516 KDDI CORPORATION	`1.86ms` from Tokyo, JP
50.173.241.132	AS7922 Comcast Cable Communications, LLC	`9.39ms` from Chicago, US
156.232.235.148	AS134548 DXTL Tseung Kwan O Service	`0.73ms` from Hong Kong, HK
47.244.40.180	AS45102 Alibaba (US) Technology Co., Ltd.	`0.73ms` from Hong Kong, HK
97.167.179.68	AS6167 Verizon Business	`10.04ms` from Los Angeles, US
58.172.76.180	AS1221 Telstra Limited	`11.93ms` from Melbourne, AU
96.250.170.100	AS701 Verizon Business	`2.51ms` from New York City, US
174.116.49.52	AS812 Rogers Communications Canada Inc.	`7.17ms` from Ottawa, CA
90.21.18.52	AS3215 Orange S.A.	`14.65ms` from Paris, FR
54.165.28.84	AS14618 Amazon.com, Inc.	`0.24ms` from Reston, US
88.135.148.100	AS24589 Telenet SIA	`0.49ms` from Riga, LV
165.154.28.4	AS135377 UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED	`0.30ms` from Singapore, SG
14.174.23.180	AS45899 VNPT Corp	`8.40ms` from Da Nang, VN

Traceroute

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

traceroute -a -n -q1 -f5 -m8 55.89.163.99

traceroute to 55.89.163.99 (55.89.163.99): 8 hops max, 52 byte packets

5 [AS3356] 64.159.250.178 2.944 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Atlanta, US

On February 16th 2026

Related Networks

AS10551

Monument Health Rapid City Hospital, Inc.

More details

AS14649

Contengent Online Systems Inc

More details

AS16535

Echostar Purchasing Corporation

More details

AS26183

On The Spot Media LLC

More details

AS2959

U.S. Sprint

More details

AS36669

AMERICAN ESOTERIC LABORATORIES

More details

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.

Data built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales