Autonomous System details

AS4221

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

United States
    Stub AS Icon Stub AS

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AS4221 – United States Department of Defense (DoD)

Field Value
Country United States
Website mail.mil
Hosted domains 0
IPv4 addresses 0
IPv6 addresses 2,417,851,639,229,258,349,412,352
ASN type Government
Registry arin
Allocated 31 years ago on Jan 09, 1995
Updated 4 months ago on Sep 12, 2025

IP Ranges

There are no known IPv4 addresses belonging to this network

Netblock Company
2001:480:52::/48 High Performance Computing
2001:480:95::/48 High Performance Computing
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WHOIS Details

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                                                ASHandle:       AS4221
                                                OrgID:          AS4221
                                                ASName:         AS4221
                                                ASNumber:       AS4221
                                                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
69.167.202.93 AS53435 JACKSON ENERGY AUTHORITY 10.13ms from Atlanta, US
112.125.250.29 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 4.36ms from Beijing, CN
160.114.33.109 AS6711 HUNGARNET SZEGED 6.14ms from Budapest, HU
149.75.249.93 AS6079 RCN 7.19ms from Chicago, US
166.166.67.237 AS6167 Verizon Business 18.36ms from Dallas, US
27.63.158.173 AS45609 Bharti Airtel Ltd. AS for GPRS Service 1.68ms from Delhi, IN
80.189.119.173 AS6871 Plusnet 4.82ms from Erith, GB
189.143.190.109 AS8151 UNINET 0.88ms from Guadalajara, MX
42.177.122.45 AS4837 CHINA UNICOM China169 Backbone 4.20ms from Liaoyang, CN
76.87.250.173 AS20001 Charter Communications Inc 2.23ms from Los Angeles, US
97.170.246.173 AS6167 Verizon Business 13.06ms from Los Angeles, US
147.156.116.157 AS766 RedIRIS Autonomous System 5.69ms from Madrid, ES
101.189.35.141 AS1221 Telstra Limited 2.12ms from Perth, AU
119.184.144.29 AS4837 CHINA UNICOM China169 Backbone 7.07ms from Qingdao, CN
45.79.8.109 AS63949 Akamai Connected Cloud 0.13ms from Richardson, US
188.52.116.45 AS25019 Saudi Telecom Company JSC 2.39ms from Riyadh, SA
95.238.82.141 AS3269 Telecom Italia S.p.A. 10.37ms from Rome, IT
58.234.157.77 AS9318 SK Broadband Co Ltd 5.65ms from Seoul, KR
58.250.240.253 AS17623 China Unicom Shenzen network 5.20ms from Shenzhen, CN
13.51.70.157 AS16509 Amazon.com, Inc. 1.09ms from Stockholm, SE
77.163.180.141 AS1136 KPN B.V. 1.13ms from Amsterdam, NL
221.220.84.61 AS4808 China Unicom Beijing Province Network 3.64ms from Beijing, CN
73.186.108.109 AS7922 Comcast Cable Communications, LLC 8.90ms from Boston, US
20.221.25.45 AS8075 Microsoft Corporation 0.33ms from Des Moines, US
95.88.5.253 AS3209 Vodafone GmbH 1.07ms from Hamburg, DE

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 AS4221 at robtex.

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