AS number details

AS27138

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

United States

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AS27138 – United States Department of Defense (DoD)

Field Value
Country United States
Website mail.mil
Hosted domains 5
Number of IPv4 36,608
Number of IPv6 0
ASN type Government
Registry arin
Allocated 23 years ago on Jan 16, 2003
Updated a month ago on Sep 12, 2025

IP Ranges

Netblock Company Num of IPs
214.51.24.0/21 DoD Network Information Center 2,048
205.58.100.0/23 Navy Network Information Center (NNIC) 512
205.73.180.0/23 Navy Network Information Center (NNIC) 512
205.73.190.0/23 Navy Network Information Center (NNIC) 512
128.26.15.0/24 Air Force Systems Networking 256
128.26.16.0/24 Air Force Systems Networking 256
128.26.17.0/24 Air Force Systems Networking 256
128.26.18.0/24 Air Force Systems Networking 256
128.26.23.0/24 Air Force Systems Networking 256
128.26.40.0/24 Air Force Systems Networking 256
128.26.45.0/24 Air Force Systems Networking 256
128.26.46.0/24 Air Force Systems Networking 256
128.26.48.0/24 Air Force Systems Networking 256
128.26.51.0/24 Air Force Systems Networking 256
128.26.52.0/24 Air Force Systems Networking 256
128.26.57.0/24 Air Force Systems Networking 256
128.26.58.0/24 Air Force Systems Networking 256
128.26.77.0/24 Air Force Systems Networking 256
128.26.79.0/24 Air Force Systems Networking 256
128.26.80.0/24 Air Force Systems Networking 256
128.26.85.0/24 Air Force Systems Networking 256
128.26.86.0/24 Air Force Systems Networking 256
128.26.88.0/24 Air Force Systems Networking 256
128.26.89.0/24 Air Force Systems Networking 256
128.26.90.0/24 Air Force Systems Networking 256
128.26.91.0/24 Air Force Systems Networking 256
128.26.100.0/24 Air Force Systems Networking 256
128.26.101.0/24 Air Force Systems Networking 256
128.26.102.0/24 Air Force Systems Networking 256
128.26.109.0/24 Air Force Systems Networking 256
128.26.110.0/24 Air Force Systems Networking 256
128.26.116.0/24 Air Force Systems Networking 256
128.26.137.0/24 Air Force Systems Networking 256
128.26.138.0/24 Air Force Systems Networking 256
128.26.144.0/24 Air Force Systems Networking 256
128.26.145.0/24 Air Force Systems Networking 256
128.26.150.0/24 Air Force Systems Networking 256
128.26.231.0/24 Air Force Systems Networking 256
128.26.232.0/24 Air Force Systems Networking 256
128.26.233.0/24 Air Force Systems Networking 256
128.26.234.0/24 Air Force Systems Networking 256
128.26.235.0/24 Air Force Systems Networking 256
128.26.239.0/24 Air Force Systems Networking 256
128.26.240.0/24 Air Force Systems Networking 256
128.26.241.0/24 Air Force Systems Networking 256
128.26.242.0/24 Air Force Systems Networking 256
128.26.243.0/24 Air Force Systems Networking 256
128.26.244.0/24 Air Force Systems Networking 256
128.26.245.0/24 Air Force Systems Networking 256
128.26.248.0/24 Air Force Systems Networking 256
128.26.249.0/24 Air Force Systems Networking 256
128.26.252.0/24 Air Force Systems Networking 256
128.26.253.0/24 Air Force Systems Networking 256
139.241.220.0/24 DoD Network Information Center 256
139.241.221.0/24 DoD Network Information Center 256
139.241.242.0/24 DoD Network Information Center 256
139.241.243.0/24 DoD Network Information Center 256
198.218.1.0/24 Air Force Systems Networking 256
198.218.3.0/24 Air Force Systems Networking 256
198.218.8.0/24 Air Force Systems Networking 256
198.218.10.0/24 Air Force Systems Networking 256
198.218.15.0/24 Air Force Systems Networking 256
198.218.38.0/24 Air Force Systems Networking 256
198.218.39.0/24 Air Force Systems Networking 256
198.218.40.0/24 Air Force Systems Networking 256
198.218.41.0/24 Air Force Systems Networking 256
198.218.49.0/24 Air Force Systems Networking 256
198.218.55.0/24 Air Force Systems Networking 256
198.218.57.0/24 Air Force Systems Networking 256
198.218.60.0/24 Air Force Systems Networking 256
198.218.61.0/24 Air Force Systems Networking 256
198.218.65.0/24 Air Force Systems Networking 256
198.218.70.0/24 Air Force Systems Networking 256
198.218.73.0/24 Air Force Systems Networking 256
198.218.75.0/24 Air Force Systems Networking 256
198.218.79.0/24 Air Force Systems Networking 256
198.218.82.0/24 Air Force Systems Networking 256
198.218.83.0/24 Air Force Systems Networking 256
198.218.92.0/24 Air Force Systems Networking 256
198.218.93.0/24 Air Force Systems Networking 256
198.218.112.0/24 Air Force Systems Networking 256
198.218.117.0/24 Air Force Systems Networking 256
198.218.118.0/24 Air Force Systems Networking 256
198.218.119.0/24 Air Force Systems Networking 256
198.218.157.0/24 Air Force Systems Networking 256
198.218.159.0/24 Air Force Systems Networking 256
198.218.162.0/24 Air Force Systems Networking 256
198.218.200.0/24 Air Force Systems Networking 256
198.218.237.0/24 Air Force Systems Networking 256
198.218.250.0/24 Air Force Systems Networking 256
198.219.8.0/24 Air Force Systems Networking 256
198.219.10.0/24 Air Force Systems Networking 256
198.219.148.0/24 Air Force Systems Networking 256
198.219.170.0/24 Air Force Systems Networking 256
198.220.77.0/24 Air Force Systems Networking 256
198.220.78.0/24 Air Force Systems Networking 256
198.220.85.0/24 Air Force Systems Networking 256
198.220.86.0/24 Air Force Systems Networking 256
198.220.153.0/24 Air Force Systems Networking 256
198.220.157.0/24 Air Force Systems Networking 256
198.220.158.0/24 Air Force Systems Networking 256
198.220.159.0/24 Air Force Systems Networking 256
198.220.163.0/24 Air Force Systems Networking 256
198.220.195.0/24 Air Force Systems Networking 256
205.58.103.0/24 Navy Network Information Center (NNIC) 256
205.58.104.0/24 Navy Network Information Center (NNIC) 256
205.60.234.0/24 Navy Network Information Center (NNIC) 256
205.60.235.0/24 Navy Network Information Center (NNIC) 256
205.60.237.0/24 Navy Network Information Center (NNIC) 256
205.60.238.0/24 Navy Network Information Center (NNIC) 256
205.60.239.0/24 Navy Network Information Center (NNIC) 256
205.61.129.0/24 Navy Network Information Center (NNIC) 256
205.61.130.0/24 Navy Network Information Center (NNIC) 256
205.73.190.0/24 Navy Network Information Center (NNIC) 256
214.4.197.0/24 DoD Network Information Center 256
214.6.249.0/24 DoD Network Information Center 256
214.25.16.0/24 DoD Network Information Center 256
214.25.17.0/24 DoD Network Information Center 256
214.25.135.0/24 DoD Network Information Center 256
214.25.152.0/24 DoD Network Information Center 256
214.25.192.0/24 DoD Network Information Center 256
214.25.193.0/24 DoD Network Information Center 256
214.25.209.0/24 DoD Network Information Center 256
214.29.100.0/24 DoD Network Information Center 256
214.29.106.0/24 DoD Network Information Center 256
214.29.108.0/24 DoD Network Information Center 256
214.29.113.0/24 DoD Network Information Center 256
214.29.115.0/24 DoD Network Information Center 256
214.29.116.0/24 DoD Network Information Center 256
214.29.117.0/24 DoD Network Information Center 256
214.29.125.0/24 DoD Network Information Center 256
214.51.57.0/24 DoD Network Information Center 256
214.64.76.0/24 DoD Network Information Center 256
215.249.14.0/24 DoD Network Information Center 256

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS27138
                                                OrgID:          AS27138
                                                ASName:         AS27138
                                                ASNumber:       AS27138
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 5 domain names hosted across 1 IP address on this ASN.

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IP Address Domain Domains on this IP
205.60.239.17 ██████████ 5

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Peers

There are 2 peers for this ASN.

Peers Name
AS27064 United States Department of Defense (DoD)
AS3474 United States Department of Defense (DoD)
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Upstreams

There is 1 peer for this ASN.

upstreams Name
AS27064 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 ASN Database Download

Downstreams

There is 1 peer for this ASN.

Downstreams Name
AS3474 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 ASN Database Download

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
86.88.36.178 AS1136 KPN B.V. 2.06ms from Amsterdam, NL
178.21.220.114 AS38915 Solido Gemeenschappelijk Regeling 5.21ms from Amsterdam, NL
66.44.223.210 AS25853 Ellijay Telephone Company 2.12ms from Atlanta, US
104.177.26.146 AS7018 AT&T Enterprises, LLC 11.12ms from Atlanta, US
47.94.146.226 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 1.89ms from Beijing, CN
124.207.181.66 AS4808 China Unicom Beijing Province Network 4.34ms from Beijing, CN
190.3.115.50 AS11664 Techtel LMDS Comunicaciones Interactivas S.A. 0.89ms from Buenos Aires, AR
196.120.189.98 AS36925 MEDITELECOM 14.92ms from Casablanca, MA
113.206.161.98 AS4837 CHINA UNICOM China169 Backbone 2.66ms from Chongqing, CN
47.110.113.98 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 4.07ms from Hangzhou, CN
117.98.196.162 AS24560 Bharti Airtel Ltd., Telemedia Services 2.00ms from Hyderabad, IN
193.77.71.2 AS5603 Telekom Slovenije, d.d. 0.57ms from Ljubljana, SI
75.201.12.130 AS6167 Verizon Business 9.63ms from Miami, US
66.0.159.178 AS7029 Windstream Communications LLC 15.50ms from Miami, US
207.171.65.130 AS1998 State of Minnesota 0.50ms from Minneapolis, US
176.212.52.178 AS51819 JSC ER-Telecom Holding 6.36ms from Moscow, RU
71.190.89.178 AS701 Verizon Business 3.07ms from New York City, US
217.247.249.130 AS3320 Deutsche Telekom AG 9.91ms from Nuernberg, DE
80.13.187.18 AS3215 Orange S.A. 2.54ms from Paris, FR
69.163.144.2 AS26347 New Dream Network, LLC 0.39ms from Portland, US
20.3.141.114 AS8075 Microsoft Corporation 0.91ms from Quincy, US
78.37.76.2 AS12389 PJSC Rostelecom 16.93ms from Saint Petersburg, RU
218.151.227.2 AS4766 Korea Telecom 2.18ms from Seoul, KR
222.235.16.130 AS9318 SK Broadband Co Ltd 1.74ms from Seoul, KR
212.247.77.242 AS1257 Tele2 Sverige AB 0.76ms from Stockholm, SE

Traceroute

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

$
traceroute -a -n -q1 -f3 -m9 205.58.101.191
traceroute to 205.58.101.191 (205.58.101.191): 9 hops max, 52 byte packets
3 [] 185.156.45.159 0.165 ms
4 *
5 *
6 [AS3356] 64.159.215.38 104.598 ms
7 *
8 *
9 *
Measurement taken from IPinfo ProbeNet in Amsterdam, NL
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 AS27138 at robtex.

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