Autonomous System details

AS121

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

United States
    Stub AS Icon Stub AS

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AS121 – United States Department of Defense (DoD)

Field Value
Country United States
Website mail.mil
Hosted domains 0
IPv4 addresses 9,728
IPv6 addresses 0
ASN type Government
Registry arin
Allocated 39 years ago on Aug 13, 1987
Updated 8 months ago on Sep 12, 2025

IP Ranges

Netblock Company Num of IPs
214.54.192.0/20 DoD Network Information Center 4,096
214.54.208.0/20 DoD Network Information Center 4,096
214.54.224.0/23 DoD Network Information Center 512
214.54.226.0/23 DoD Network Information Center 512
214.54.230.0/24 DoD Network Information Center 256
214.54.231.0/24 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:       AS121
                                                OrgID:          AS121
                                                ASName:         AS121
                                                ASNumber:       AS121
                                                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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Peers

There is 1 peer for this ASN.

Peers Name
AS668 United States Department of Defense (DoD)
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Upstreams

There is 1 peer for this ASN.

upstreams Name
AS668 United States Department of Defense (DoD)
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Downstreams

There are no downstreams for this ASN.

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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
182.75.201.153 AS9498 BHARTI Airtel Ltd. 1.11ms from Bengaluru, IN
23.43.219.41 AS16625 Akamai Technologies, Inc. 0.70ms from Chicago, US
64.139.34.89 AS3320 Deutsche Telekom AG 0.50ms from Frankfurt am Main, DE
212.184.123.217 AS3320 Deutsche Telekom AG 1.89ms from Frankfurt am Main, DE
122.224.76.249 AS4134 CHINANET BACKBONE 5.34ms from Hangzhou, CN
60.11.141.169 AS4837 CHINA UNICOM China169 Backbone 8.06ms from Harbin, CN
115.72.6.153 AS7552 Viettel Group 2.71ms from Ho Chi Minh City, VN
1.216.223.41 AS3786 LG DACOM Corporation 1.50ms from Incheon, KR
59.103.172.137 AS17557 Pakistan Telecommunication Company Limited 1.44ms from Islamabad, PK
202.154.234.41 AS23966 LINKdotNET Telecom Limited 1.71ms from Karachi, PK
181.143.126.121 AS13489 UNE EPM TELECOMUNICACIONES S.A. 0.68ms from Medellin, CO
181.205.35.185 AS27831 Colombia Móvil 0.56ms from Medellin, CO
50.221.22.233 AS7922 Comcast Cable Communications, LLC 2.10ms from Miami, US
80.183.155.73 AS3269 Telecom Italia S.p.A. 7.44ms from Milan, IT
87.172.195.217 AS3320 Deutsche Telekom AG 4.59ms from Munich, DE
95.191.28.57 AS12389 PJSC Rostelecom 5.60ms from Novosibirsk, RU
60.100.209.57 AS17676 SoftBank Corp. 3.92ms from Osaka, JP
187.103.41.25 AS17222 MUNDIVOX DO BRASIL LTDA 1.08ms from Rio de Janeiro, BR
117.184.184.121 AS24400 Shanghai Mobile Communications Co.,Ltd. 3.28ms from Shanghai, CN
52.76.133.105 AS16509 Amazon.com, Inc. 0.11ms from Singapore, SG
77.29.54.121 AS6821 Makedonski Telekom AD-Skopje 1.54ms from Skopje, MK
2.67.253.9 AS44034 Hi3G Access AB 12.02ms from Stockholm, SE
13.70.73.105 AS8075 Microsoft Corporation 0.76ms from Sydney, AU
149.174.45.153 AS272096 PACKETHUB S.A. 0.15ms from Tokyo, JP
91.114.204.137 AS8447 A1 Telekom Austria AG 2.19ms from Vienna, AT

Traceroute

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

$
traceroute -a -n -q1 -f5 214.54.227.129
traceroute to 214.54.227.129 (214.54.227.129): 64 hops max, 52 byte packets
Measurement taken from IPinfo ProbeNet in Ashburn, 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 AS121 at robtex.

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