Autonomous System details

AS1561

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

United States
    Stub AS Icon Stub AS

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AS1561 – United States Department of Defense (DoD)

Field Value
Country United States
Website mail.mil
Hosted domains 0
IPv4 addresses 65,536
IPv6 addresses 0
ASN type Government
Registry arin
Allocated 20 years ago on Apr 03, 2006
Updated 5 months ago on Sep 12, 2025

IP Ranges

Netblock Company Num of IPs
6.126.0.0/16 Headquarters, USAISC 65,536
6.126.64.0/20 Headquarters, USAISC 4,096
6.126.224.0/21 Headquarters, USAISC 2,048
6.126.6.0/23 Headquarters, USAISC 512
6.126.8.0/23 Headquarters, USAISC 512
6.126.2.0/24 Headquarters, USAISC 256
6.126.225.0/24 Headquarters, USAISC 256

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS1561
                                                OrgID:          AS1561
                                                ASName:         AS1561
                                                ASNumber:       AS1561
                                                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
AS1554 United States Department of Defense (DoD)
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ASN API & Database

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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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
201.176.221.233 AS22927 Telefonica de Argentina 1.86ms from Buenos Aires, AR
45.241.10.105 AS24863 Link Egypt (Link.NET) 8.61ms from Cairo, EG
182.132.224.153 AS4134 CHINANET-BACKBONE 3.05ms from Chengdu, CN
182.79.159.201 AS9498 BHARTI Airtel Ltd. 4.39ms from Delhi, IN
176.253.238.9 AS5607 Sky UK Limited 3.71ms from Erith, GB
181.196.79.185 AS28006 CORPORACION NACIONAL DE TELECOMUNICACIONES - CNT EP 1.82ms from Guayaquil, EC
14.244.194.89 AS45899 VNPT Corp 2.89ms from Hanoi, VN
47.242.49.153 AS45102 Alibaba (US) Technology Co., Ltd. 0.71ms from Hong Kong, HK
103.6.176.41 AS9381 HKBN Enterprise Solutions HK Limited 0.64ms from Hong Kong, HK
61.43.52.25 AS3786 LG DACOM Corporation 1.74ms from Incheon, KR
211.224.73.233 AS4766 Korea Telecom 5.13ms from Incheon, KR
1.247.27.41 AS9318 SK Broadband Co Ltd 2.46ms from Incheon, KR
86.162.172.121 AS2856 British Telecommunications PLC 1.77ms from London, GB
74.93.49.185 AS7922 Comcast Cable Communications, LLC 10.31ms from Murfreesboro, US
177.135.105.89 AS18881 TELEFÔNICA BRASIL S.A 2.38ms from Novo Hamburgo, BR
114.191.162.89 AS4713 NTT DOCOMO BUSINESS,Inc. 3.37ms from Osaka, JP
116.222.21.137 AS9824 JCOM Co., Ltd. 10.89ms from Osaka, JP
199.47.177.73 AS19404 Quest 4.42ms from Santa Clara, US
1.215.250.105 AS3786 LG DACOM Corporation 1.84ms from Seoul, KR
119.218.179.185 AS4766 Korea Telecom 5.06ms from Seoul, KR
101.89.156.105 AS4811 China Telecom (Group) 3.63ms from Shanghai, CN
34.87.135.25 AS396982 Google LLC 0.16ms from Singapore, SG
219.143.76.153 AS4847 China Networks Inter-Exchange 2.27ms from Tianjin, CN
1.78.127.25 AS9605 NTT DOCOMO, INC. 16.86ms from Tokyo, JP
147.45.240.249 AS210976 Timeweb, LLP 0.49ms from Amsterdam, NL

Traceroute

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

$
traceroute -a -n -q1 -f3 -m7 6.126.1.225
traceroute to 6.126.1.225 (6.126.1.225): 7 hops max, 52 byte packets
3 [AS3356] 213.249.123.45 15.185 ms
4 [AS3356] 171.75.10.251 18.956 ms
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Brussels, BE
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 AS1561 at robtex.

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