Autonomous System 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
IPv4 addresses 39,680
IPv6 addresses 0
ASN type Government
Registry arin
Allocated 23 years ago on Jan 16, 2003
Updated 6 months ago on Sep 12, 2025

IP Ranges

Netblock Company Num of IPs
214.51.24.0/21 DoD Network Information Center 2,048
205.73.180.0/23 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
128.26.19.0/24 Air Force Systems Networking 256
128.26.21.0/24 Air Force Systems Networking 256
128.26.22.0/24 Air Force Systems Networking 256
128.26.23.0/24 Air Force Systems Networking 256
128.26.24.0/24 Air Force Systems Networking 256
128.26.25.0/24 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
128.26.47.0/24 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
128.26.70.0/24 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
128.26.82.0/24 Air Force Systems Networking 256
128.26.85.0/24 Air Force Systems Networking 256
128.26.87.0/24 Air Force Systems Networking 256
128.26.90.0/24 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
128.26.108.0/24 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
128.26.128.0/24 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
128.26.141.0/24 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
128.26.250.0/24 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
198.218.8.0/24 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
198.218.52.0/24 Air Force Systems Networking 256
198.218.54.0/24 Air Force Systems Networking 256
198.218.55.0/24 Air Force Systems Networking 256
198.218.56.0/24 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
198.218.70.0/24 Air Force Systems Networking 256
198.218.71.0/24 Air Force Systems Networking 256
198.218.73.0/24 Air Force Systems Networking 256
198.218.74.0/24 Air Force Systems Networking 256
198.218.75.0/24 Air Force Systems Networking 256
198.218.76.0/24 Air Force Systems Networking 256
198.218.79.0/24 Air Force Systems Networking 256
198.218.80.0/24 Air Force Systems Networking 256
198.218.81.0/24 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
198.218.91.0/24 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
198.218.103.0/24 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
198.218.158.0/24 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
198.219.148.0/24 Air Force Systems Networking 256
198.219.175.0/24 Air Force Systems Networking 256
198.219.176.0/24 Air Force Systems Networking 256
198.219.178.0/24 Air Force Systems Networking 256
198.220.77.0/24 Air Force Systems Networking 256
198.220.81.0/24 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
198.220.163.0/24 Air Force Systems Networking 256
198.220.186.0/24 Air Force Systems Networking 256
198.220.187.0/24 Air Force Systems Networking 256
198.220.189.0/24 Air Force Systems Networking 256
198.220.190.0/24 Air Force Systems Networking 256
198.220.191.0/24 Air Force Systems Networking 256
198.220.195.0/24 Air Force Systems Networking 256
205.58.104.0/24 Navy Network Information Center (NNIC) 256
205.60.229.0/24 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
205.61.121.0/24 Navy Network Information Center (NNIC) 256
205.61.125.0/24 Navy Network Information Center (NNIC) 256
205.61.126.0/24 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
214.25.16.0/24 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
214.25.211.0/24 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
214.29.126.0/24 DoD Network Information Center 256
214.51.57.0/24 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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Hosted Domains API & Database

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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ASN API & Database

Upstreams

There is 1 peer for this ASN.

upstreams Name
AS27064 United States Department of Defense (DoD)
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ASN API & Database

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 & 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
172.211.226.34 AS8075 Microsoft Corporation 0.21ms from Amsterdam, NL
52.34.14.98 AS16509 Amazon.com, Inc. 0.17ms from Boardman, US
4.245.163.226 AS8075 Microsoft Corporation 0.20ms from Dublin, IE
188.103.40.82 AS3209 Vodafone GmbH 17.35ms from Duesseldorf, DE
79.221.92.66 AS3320 Deutsche Telekom AG 2.60ms from Duesseldorf, DE
88.149.67.114 AS12969 Vodafone Iceland 5.47ms from Hafnarfjoerdur, IS
20.49.201.98 AS8075 Microsoft Corporation 0.19ms from London, GB
206.82.221.114 AS5693 Latisys-Irvine, LLC 1.55ms from Los Angeles, US
151.7.34.66 AS1267 WIND TRE S.P.A. 5.90ms from Milan, IT
51.162.126.34 AS15830 Equinix (EMEA) Acquisition Enterprises B.V. 0.65ms from Perth, AU
128.196.72.2 AS1706 The University of Arizona 4.11ms from Phoenix, US
149.137.170.2 AS398777 Pioneer Connect 3.24ms from Portland, US
187.251.32.18 AS18592 Corporacion Universitaria para el Desarrollo de Internet, A.C. 3.50ms from Santiago de Queretaro, MX
18.141.26.18 AS16509 Amazon.com, Inc. 0.14ms from Singapore, SG
68.178.160.82 AS26496 GoDaddy.com, LLC 0.92ms from Singapore, SG
183.190.253.2 AS4837 CHINA UNICOM China169 Backbone 9.43ms from Taiyuan, CN
18.35.248.2 AS16509 Amazon.com, Inc. 0.63ms from Tokyo, JP
188.166.201.98 AS14061 DigitalOcean, LLC 0.16ms from Amsterdam, NL
223.224.109.2 AS45609 Bharti Airtel Ltd. AS for GPRS Service 1.20ms from Bengaluru, IN
44.253.191.130 AS16509 Amazon.com, Inc. 0.20ms from Boardman, US
45.71.153.194 AS265836 NODOSOFT S.A. 12.05ms from Buenos Aires, AR
72.129.130.162 AS10796 Charter Communications Inc 8.92ms from Chicago, US
97.119.150.2 AS209 CenturyLink Communications, LLC 10.42ms from Chicago, US
98.97.246.2 AS399821 LaGrange County Rural Electric Membership Corporation 3.62ms from Chicago, US
87.188.228.210 AS3320 Deutsche Telekom AG 6.78ms from Frankfurt am Main, DE

Traceroute

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

$
traceroute -a -n -q1 -m5 128.26.15.190
traceroute to 128.26.15.190 (128.26.15.190): 5 hops max, 52 byte packets
1 [AS31898] 140.91.242.5 0.065 ms
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Abu Dhabi, AE
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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