AS number details

AS1566

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

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AS1566 – United States Department of Defense (DoD)

Field Value
Country United States
Website mail.mil
Hosted domains 1
Number of IPv4 65,536
Number of IPv6 0
ASN type Government
Registry arin
Allocated 20 years ago on Apr 03, 2006
Updated a month ago on Sep 12, 2025
Netblock Company Num of IPs
136.221.0.0/16 Headquarters, USAISC 65,536

There are no known IPv6 addresses belonging to this network

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IP Ranges API

WHOIS Details


                                                ASHandle:       AS1566
                                                OrgID:          AS1566
                                                ASName:         AS1566
                                                ASNumber:       AS1566
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

                                            
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Hosted Domains

There is 1 domain name hosted across 1 IP address on this ASN.

IP Address Domain Domains on this IP
136.221.71.69 ███████ 1

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Useful for Cybersecurity

Peers

There is 1 peer for this ASN.

Peers Name
AS1554 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.

Upstreams

There is 1 peer for this ASN.

upstreams Name
AS1554 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
71.253.150.222 AS701 Verizon Business 4.41ms from Ashburn, US
96.32.162.206 AS20115 Charter Communications LLC 5.52ms from Atlanta, US
138.113.235.30 AS54994 Meteverse Limited. 0.78ms from Bangkok, TH
91.151.230.94 AS42852 Societe Libanaise pour le developpement et la reconstruction du centre ville de de Beyrouth (Solidere) 1.81ms from Beirut, LB
179.36.158.158 AS22927 Telefonica de Argentina 2.29ms from Buenos Aires, AR
89.28.55.254 AS31252 StarNet Solutii SRL 0.62ms from Chisinau, MD
72.135.18.46 AS11427 Charter Communications Inc 5.49ms from Dallas, US
216.87.83.30 AS13649 Flexential Colorado Corp. 0.96ms from Denver, US
138.99.30.14 AS61786 E. D. SERVIÇOS DE COMUNICAÇÕES LTDA 14.59ms from Fortaleza, BR
135.125.138.78 AS16276 OVH SAS 0.15ms from Frankfurt am Main, DE
79.236.58.158 AS3320 Deutsche Telekom AG 6.64ms from Frankfurt am Main, DE
77.222.144.78 AS3326 Datagroup PJSC 0.43ms from Kyiv, UA
2.15.15.254 AS3215 Orange S.A. 3.97ms from Marseille, FR
112.141.245.78 AS9443 Vocus Retail 1.92ms from Melbourne, AU
96.57.129.254 AS6128 Cablevision Systems Corp. 2.83ms from Newark, US
185.100.167.254 AS205032 Smartline srls 0.45ms from Palermo, IT
60.217.145.174 AS4837 CHINA UNICOM China169 Backbone 4.49ms from Qingdao, CN
188.242.176.190 AS35807 SkyNet Ltd. 0.72ms from Saint Petersburg, RU
210.101.66.174 AS4766 Korea Telecom 1.49ms from Seoul, KR
45.136.54.126 AS57743 GreenNetworks LLC 1.66ms from Tbilisi, GE
45.76.219.46 AS20473 The Constant Company, LLC 0.17ms from Tokyo, JP
143.130.39.14 AS211817 Wirtschafts- und Sozialwissenschaftliches Rechenzentrum 0.82ms from Vienna, AT
20.86.238.222 AS8075 Microsoft Corporation 0.25ms from Amsterdam, NL
165.166.241.254 AS14615 Comporium, Inc 8.35ms from Ashburn, US
75.249.163.174 AS6167 Verizon Business 18.97ms from Atlanta, US

Traceroute

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

$
traceroute -a -n -q1 -f2 -m9 136.221.92.138
traceroute to 136.221.92.138 (136.221.92.138): 9 hops max, 52 byte packets
2 [AS1299] 62.115.9.240 1.468 ms
3 *
5 *
6 [AS3356] 171.75.10.251 7.451 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 AS1566 at robtex.

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