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 37,888
IPv6 addresses 0
ASN type Government
Registry arin
Allocated 23 years ago on Jan 16, 2003
Updated 4 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
128.26.21.0/24 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
128.26.40.0/24 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
128.26.70.0/24 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
128.26.85.0/24 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
128.26.116.0/24 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
128.26.144.0/24 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
198.218.3.0/24 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
198.218.52.0/24 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
198.218.71.0/24 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
198.220.77.0/24 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
198.220.186.0/24 Air Force Systems Networking 256
198.220.187.0/24 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
205.60.235.0/24 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
205.61.129.0/24 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
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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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)
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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
196.65.245.242 AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM 7.30ms from Casablanca, MA
77.33.151.162 AS44869 FIBIA P/S 1.92ms from Copenhagen, DK
207.231.18.2 AS20432 North East Fiber, LLC 11.86ms from Dallas, US
4.184.76.194 AS8075 Microsoft Corporation 0.32ms from Frankfurt am Main, DE
88.149.67.114 AS12969 Vodafone Iceland 5.45ms from Hafnarfjoerdur, IS
61.93.8.66 AS9269 Hong Kong Broadband Network Ltd. 0.95ms from Hong Kong, HK
121.227.145.210 AS140292 CHINATELECOM Jiangsu province Suzhou 5G network 7.34ms from Huai'an, CN
167.142.101.98 AS5056 Aureon Network Services 4.32ms from Kansas City, US
86.169.42.226 AS2856 British Telecommunications PLC 1.58ms from London, GB
23.193.127.210 AS16625 Akamai Technologies, Inc. 0.48ms from Miami, US
213.135.128.2 AS13056 PJSC Rostelecom 10.01ms from Moscow, RU
61.160.200.2 AS140293 CHINATELECOM Jiangsu province Changzhou 5G network 3.37ms from Nanjing, CN
167.172.233.226 AS14061 DigitalOcean, LLC 0.32ms from New York City, US
150.9.97.82 AS4685 Asahi Net 2.22ms from Osaka, JP
186.249.64.114 AS262822 WE RADIO COMUNICAÇÕES LTDA EPP 5.56ms from Rio de Janeiro, BR
210.63.207.18 AS24154 Asia Pacific Broadband Fixed Lines Co., Ltd. 1.14ms from Taipei, TW
124.246.236.82 AS23791 LCV Corporation 6.45ms from Tokyo, JP
200.21.225.82 AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 1.65ms from Bogota, CO
20.221.153.194 AS8075 Microsoft Corporation 0.30ms from Boydton, US
75.219.209.50 AS6167 Verizon Business 16.74ms from Chicago, US
136.119.222.146 AS396982 Google LLC 0.11ms from Council Bluffs, US
69.162.87.130 AS46475 Limestone Networks, Inc. 0.25ms from Dallas, US
84.191.209.114 AS3320 Deutsche Telekom AG 6.58ms from Frankfurt am Main, DE
24.28.191.50 AS11427 Charter Communications Inc 5.82ms from Houston, US
103.124.29.2 AS149227 VI GLOBAL FIBERTEL PVT LTD 1.44ms from Hyderabad, IN

Traceroute

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

$
traceroute -a -n -q1 -f2 -m6 128.26.242.110
traceroute to 128.26.242.110 (128.26.242.110): 6 hops max, 52 byte packets
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Flint, US
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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