Autonomous System details

AS668

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

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AS668 – United States Department of Defense (DoD)

Field Value
Country United States
Website mail.mil
Hosted domains 23
IPv4 addresses 2,666,752
IPv6 addresses 79,228,162,514,264,337,593,543,950,336
ASN type Government
Registry arin
Allocated 36 years ago on Apr 24, 1990
Updated 3 months ago on Sep 12, 2025
Netblock Company Num of IPs
6.14.0.0/15 Headquarters, USAISC 131,072
6.4.0.0/16 Headquarters, USAISC 65,536
6.11.0.0/16 Headquarters, USAISC 65,536
128.132.0.0/16 Air Force Systems Networking 65,536
129.92.0.0/16 Air Force Systems Networking 65,536
129.229.0.0/16 Headquarters, USAISC 65,536
130.109.0.0/16 Navy Network Information Center (NNIC) 65,536
130.163.0.0/16 Navy Network Information Center (NNIC) 65,536
131.120.0.0/16 Navy Network Information Center (NNIC) 65,536
131.121.0.0/16 Navy Network Information Center (NNIC) 65,536
131.122.0.0/16 Navy Network Information Center (NNIC) 65,536
131.214.0.0/16 Air Force Systems Networking 65,536
131.218.0.0/16 Headquarters, USAISC 65,536
132.45.0.0/16 Air Force Systems Networking 65,536
132.193.0.0/16 Headquarters, USAISC 65,536
137.128.0.0/16 Headquarters, USAISC 65,536
140.6.0.0/16 DoD Network Information Center 65,536
140.25.0.0/16 DoD Network Information Center 65,536
140.31.0.0/16 DoD Network Information Center 65,536
140.32.0.0/16 DoD Network Information Center 65,536
140.178.0.0/16 Navy Network Information Center (NNIC) 65,536
143.56.0.0/16 DoD Network Information Center 65,536
144.3.0.0/16 Headquarters, USAISC 65,536
147.227.0.0/16 Headquarters, USAISC 65,536
150.125.0.0/16 Navy Network Information Center (NNIC) 65,536
155.141.0.0/16 Headquarters, USAISC 65,536
155.244.0.0/16 Air Force Systems Networking 65,536
157.187.0.0/16 Navy Network Information Center (NNIC) 65,536
158.12.0.0/16 Headquarters, USAISC 65,536
163.240.0.0/16 Navy Network Information Center (NNIC) 65,536
164.49.0.0/16 Headquarters, USAISC 65,536
164.191.0.0/16 Navy Network Information Center (NNIC) 65,536
6.2.0.0/17 Headquarters, USAISC 32,768
6.6.128.0/17 Headquarters, USAISC 32,768
128.160.0.0/17 Navy Network Information Center (NNIC) 32,768
131.250.0.0/17 Navy Network Information Center (NNIC) 32,768
155.148.0.0/17 Headquarters, USAISC 32,768
6.3.0.0/18 Headquarters, USAISC 16,384
131.92.192.0/18 Headquarters, USAISC 16,384
131.250.128.0/18 Navy Network Information Center (NNIC) 16,384
134.166.0.0/18 Air Force Systems Networking 16,384
134.166.64.0/18 Air Force Systems Networking 16,384
147.241.192.0/18 Headquarters, USAISC 16,384
155.148.128.0/18 Headquarters, USAISC 16,384
155.154.192.0/18 Headquarters, USAISC 16,384
6.5.0.0/19 Headquarters, USAISC 8,192
144.252.0.0/19 Headquarters, USAISC 8,192
144.252.64.0/19 Headquarters, USAISC 8,192
155.148.192.0/19 Headquarters, USAISC 8,192
198.14.32.0/19 Air Force Systems Networking 8,192
198.253.128.0/19 Navy Network Information Center (NNIC) 8,192
6.6.16.0/20 Headquarters, USAISC 4,096
6.6.32.0/20 Headquarters, USAISC 4,096
6.6.48.0/20 Headquarters, USAISC 4,096
6.6.64.0/20 Headquarters, USAISC 4,096
6.6.80.0/20 Headquarters, USAISC 4,096
6.6.96.0/20 Headquarters, USAISC 4,096
6.6.112.0/20 Headquarters, USAISC 4,096
6.8.0.0/20 Headquarters, USAISC 4,096
6.9.0.0/20 Headquarters, USAISC 4,096
131.250.192.0/20 Navy Network Information Center (NNIC) 4,096
134.166.144.0/20 Air Force Systems Networking 4,096
147.248.48.0/20 Headquarters, USAISC 4,096
155.148.224.0/20 Headquarters, USAISC 4,096
164.122.0.0/20 Air Force Systems Networking 4,096
198.253.192.0/20 Navy Network Information Center (NNIC) 4,096
199.31.16.0/20 DoD Network Information Center 4,096
204.235.64.0/20 Headquarters, USAISC 4,096
6.6.8.0/21 Headquarters, USAISC 2,048
131.92.136.0/21 Headquarters, USAISC 2,048
131.92.144.0/21 Headquarters, USAISC 2,048
131.92.168.0/21 Headquarters, USAISC 2,048
147.241.56.0/21 Headquarters, USAISC 2,048
147.241.72.0/21 Headquarters, USAISC 2,048
147.241.80.0/21 Headquarters, USAISC 2,048
147.241.88.0/21 Headquarters, USAISC 2,048
147.241.128.0/21 Headquarters, USAISC 2,048
147.241.160.0/21 Headquarters, USAISC 2,048
147.241.168.0/21 Headquarters, USAISC 2,048
147.241.176.0/21 Headquarters, USAISC 2,048
155.148.240.0/21 Headquarters, USAISC 2,048
198.154.16.0/21 Navy Network Information Center (NNIC) 2,048
198.253.40.0/21 Navy Network Information Center (NNIC) 2,048
198.253.64.0/21 Navy Network Information Center (NNIC) 2,048
198.253.168.0/21 Navy Network Information Center (NNIC) 2,048
199.208.32.0/21 DoD Network Information Center 2,048
199.209.144.0/21 DoD Network Information Center 2,048
199.209.240.0/21 DoD Network Information Center 2,048
199.209.248.0/21 DoD Network Information Center 2,048
204.222.64.0/21 DoD Network Information Center 2,048
214.9.96.0/21 DoD Network Information Center 2,048
214.29.136.0/21 DoD Network Information Center 2,048
6.6.0.0/22 Headquarters, USAISC 1,024
131.92.132.0/22 Headquarters, USAISC 1,024
131.92.164.0/22 Headquarters, USAISC 1,024
131.92.176.0/22 Headquarters, USAISC 1,024
134.166.128.0/22 Air Force Systems Networking 1,024
140.27.8.0/22 DoD Network Information Center 1,024
147.241.96.0/22 Headquarters, USAISC 1,024
147.241.104.0/22 Headquarters, USAISC 1,024
147.241.112.0/22 Headquarters, USAISC 1,024
147.241.120.0/22 Headquarters, USAISC 1,024
192.171.8.0/22 Navy Network Information Center (NNIC) 1,024
199.209.144.0/22 DoD Network Information Center 1,024
205.66.100.0/22 Navy Network Information Center (NNIC) 1,024
131.92.162.0/23 Headquarters, USAISC 512
131.92.180.0/23 Headquarters, USAISC 512
131.92.182.0/23 Headquarters, USAISC 512
131.92.184.0/23 Headquarters, USAISC 512
134.166.132.0/23 Air Force Systems Networking 512
134.166.136.0/23 Air Force Systems Networking 512
140.27.10.0/23 DoD Network Information Center 512
140.27.12.0/23 DoD Network Information Center 512
140.27.14.0/23 DoD Network Information Center 512
198.97.234.0/23 SPACE & NAVAL WARFARE SYSTEMS CENTER 512
198.154.24.0/23 NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION 512
198.154.174.0/23 Navy Network Information Center (NNIC) 512
198.154.176.0/23 Navy Network Information Center (NNIC) 512
199.123.86.0/23 Headquarters, USAISC 512
199.123.88.0/23 Headquarters, USAISC 512
199.209.150.0/23 DoD Network Information Center 512
204.44.136.0/23 DoD Network Information Center 512
204.222.6.0/23 DoD Network Information Center 512
204.222.8.0/23 DoD Network Information Center 512
206.37.28.0/23 DoD Network Information Center 512
206.37.30.0/23 DoD Network Information Center 512
6.6.4.0/24 Headquarters, USAISC 256
6.6.5.0/24 Headquarters, USAISC 256
6.6.7.0/24 Headquarters, USAISC 256
6.7.0.0/24 Headquarters, USAISC 256
131.92.131.0/24 Headquarters, USAISC 256
131.92.186.0/24 Headquarters, USAISC 256
134.164.220.0/24 Headquarters, USAISC 256
134.166.134.0/24 Air Force Systems Networking 256
134.166.135.0/24 Air Force Systems Networking 256
134.166.138.0/24 Air Force Systems Networking 256
140.25.98.0/24 DoD Network Information Center 256
147.241.118.0/24 Headquarters, USAISC 256
147.241.126.0/24 Headquarters, USAISC 256
192.5.17.0/24 Navy Network Information Center (NNIC) 256
192.5.21.0/24 Headquarters, USAISC 256
192.5.22.0/24 Headquarters, USAISC 256
192.5.23.0/24 Headquarters, USAISC 256
192.5.148.0/24 DoD Network Information Center 256
192.12.124.0/24 Headquarters, USAISC 256
192.16.167.0/24 DoD Network Information Center 256
192.31.147.0/24 Navy Network Information Center (NNIC) 256
192.42.141.0/24 Air Force Systems Networking 256
192.48.242.0/24 Headquarters, USAISC 256
192.55.117.0/24 Headquarters, USAISC 256
192.58.244.0/24 Harry Diamond Laboratories 256
192.67.80.0/24 Air Force Systems Networking 256
192.67.93.0/24 Air Force Systems Networking 256
192.86.66.0/24 Headquarters, USAISC 256
192.88.110.0/24 Headquarters, USAISC 256
192.100.92.0/24 Air Force Systems Networking 256
192.138.87.0/24 Navy Network Information Center (NNIC) 256
192.160.158.0/24 Navy Network Information Center (NNIC) 256
192.160.159.0/24 Navy Network Information Center (NNIC) 256
192.171.12.0/24 Navy Network Information Center (NNIC) 256
192.175.87.0/24 Air Force Systems Networking 256
192.190.228.0/24 Navy Network Information Center (NNIC) 256
192.190.229.0/24 Navy Network Information Center (NNIC) 256
198.97.236.0/24 Navy Network Information Center (NNIC) 256
198.154.173.0/24 Navy Network Information Center (NNIC) 256
198.253.56.0/24 Navy Network Information Center (NNIC) 256
198.253.110.0/24 Navy Network Information Center (NNIC) 256
198.253.252.0/24 Navy Network Information Center (NNIC) 256
198.253.253.0/24 Navy Network Information Center (NNIC) 256
199.9.0.0/24 Navy Network Information Center (NNIC) 256
199.9.1.0/24 Naval Research Laboratory, Marine 256
199.9.2.0/24 Navy Network Information Center (NNIC) 256
199.10.16.0/24 Navy Network Information Center (NNIC) 256
199.10.17.0/24 Navy Network Information Center (NNIC) 256
199.10.18.0/24 Navy Network Information Center (NNIC) 256
199.10.19.0/24 Navy Network Information Center (NNIC) 256
199.10.20.0/24 Navy Network Information Center (NNIC) 256
199.10.62.0/24 Navy Network Information Center (NNIC) 256
199.10.127.0/24 Navy Network Information Center (NNIC) 256
199.10.148.0/24 Navy Network Information Center (NNIC) 256
199.10.233.0/24 Navy Network Information Center (NNIC) 256
199.31.107.0/24 DoD Network Information Center 256
199.123.90.0/24 Headquarters, USAISC 256
199.123.105.0/24 DoD Network Information Center 256
199.123.113.0/24 DoD Network Information Center 256
199.208.158.0/24 DoD Network Information Center 256
199.209.149.0/24 DoD Network Information Center 256
204.238.129.0/24 Navy Network Information Center (NNIC) 256
205.67.232.0/24 Navy Network Information Center (NNIC) 256
205.68.95.0/24 Navy Network Information Center (NNIC) 256
205.111.251.0/24 Navy Network Information Center (NNIC) 256
205.111.252.0/24 Navy Network Information Center (NNIC) 256
206.37.224.0/24 DoD Network Information Center 256
206.37.252.0/24 DoD Network Information Center 256
207.132.147.0/24 DoD Network Information Center 256
207.133.211.0/24 DoD Network Information Center 256
214.4.136.0/24 DoD Network Information Center 256
214.9.92.0/24 DoD Network Information Center 256
214.9.94.0/24 DoD Network Information Center 256
214.9.95.0/24 DoD Network Information Center 256
214.10.25.0/24 DoD Network Information Center 256
214.27.178.0/24 DoD Network Information Center 256
214.38.133.0/24 DoD Network Information Center 256

Netblock Company
2001:480::/32 High Performance Computing
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IP Ranges API

WHOIS Details


                                                ASHandle:       AS668
                                                OrgID:          AS668
                                                ASName:         AS668
                                                ASNumber:       AS668
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

                                            
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Hosted Domains

There are 23 domain names hosted across 22 IP addresses on this ASN.

IP Address Domain Domains on this IP
140.32.24.147 ██████████ 2
6.6.44.4 ████████ 2
140.178.211.157 ██████████ 1
6.3.3.2 ██████████ 1
137.128.147.5 ███████ 1
6.3.22.26 █████████ 1
131.92.251.50 ██████████ 1
199.9.2.160 ██████████ 1
6.4.12.165 █████████ 1
140.27.14.47 ██████████ 1

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Useful for Cybersecurity

Peers

There are 47 peers for this ASN.

Peers Name
AS10764 University of Illinois
AS11537 Internet2
AS121 United States Department of Defense (DoD)
AS13 Headquarters, USAISC
AS137409 GSL Networks Pty LTD
AS1508 Headquarters, USAISC
AS1828 Unitas Global
AS19035 Hawaii Internet Exchange
AS20253 Qwilt Inc.
AS213 Headquarters, USAISC
AS2153 CENIC
AS22 Navy Network Information Center (NNIC)
AS22335 Metropolitan Research and Education Network
AS228 United States Department of Defense (DoD)
AS23367 Adaptive Data Networks, LLC
AS252 Headquarters, USAISC
AS2621 United States Department of Defense (DoD)
AS289 Headquarters, USAISC
AS2914 NTT America, Inc.
AS293 ESnet
AS3381 Maui High Performance Computing Center
AS366 United States Department of Defense (DoD)
AS37 Navy Network Information Center (NNIC)
AS393399 Sandia National Laboratories
AS40300 DR Fortress, LLC
AS4181 TDS TELECOM
AS4221 United States Department of Defense (DoD)
AS48 Navy Network Information Center (NNIC)
AS49544 i3D.net B.V
AS5058 Navy Network Information Center (NNIC)
AS5132 United States Department of Defense (DoD)
AS518 United States Department of Defense (DoD)
AS53828 NETWORK INNOVATIONS, LLC
AS5887 United States Department of Defense (DoD)
AS5957 United States Department of Defense (DoD)
AS5978 United States Department of Defense (DoD)
AS5980 United States Department of Defense (DoD)
AS6009 United States Department of Defense (DoD)
AS6043 United States Department of Defense (DoD)
AS6082 IPiFony Systems, Inc.
AS6360 University of Hawaii
AS687 United States Department of Defense (DoD)
AS6939 Hurricane Electric LLC
AS701 Verizon Business
AS7575 Australian Academic and Research Network (AARNet)
AS84 Navy Network Information Center (NNIC)
AS89 Navy Network Information Center (NNIC)
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Upstreams

There are 3 upstreams for this ASN.

upstreams Name
AS2914 NTT America, Inc.
AS6939 Hurricane Electric LLC
AS701 Verizon Business
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Downstreams

There are 27 downstreams for this ASN.

Downstreams Name
AS121 United States Department of Defense (DoD)
AS13 Headquarters, USAISC
AS1508 Headquarters, USAISC
AS213 Headquarters, USAISC
AS22 Navy Network Information Center (NNIC)
AS228 United States Department of Defense (DoD)
AS252 Headquarters, USAISC
AS2621 United States Department of Defense (DoD)
AS289 Headquarters, USAISC
AS3381 Maui High Performance Computing Center
AS366 United States Department of Defense (DoD)
AS37 Navy Network Information Center (NNIC)
AS393399 Sandia National Laboratories
AS4221 United States Department of Defense (DoD)
AS48 Navy Network Information Center (NNIC)
AS5058 Navy Network Information Center (NNIC)
AS5132 United States Department of Defense (DoD)
AS518 United States Department of Defense (DoD)
AS5887 United States Department of Defense (DoD)
AS5957 United States Department of Defense (DoD)
AS5978 United States Department of Defense (DoD)
AS5980 United States Department of Defense (DoD)
AS6009 United States Department of Defense (DoD)
AS6043 United States Department of Defense (DoD)
AS687 United States Department of Defense (DoD)
AS84 Navy Network Information Center (NNIC)
AS89 Navy Network Information Center (NNIC)
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Pingable IPs

6,606 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
131.92.254.22 AS668 United States Department of Defense (DoD) 9.63ms from Ashburn, US
163.240.214.26 AS668 United States Department of Defense (DoD) 0.51ms from Atlanta, US
164.191.172.92 AS668 United States Department of Defense (DoD) 0.52ms from Atlanta, US
134.166.87.170 AS668 United States Department of Defense (DoD) 0.51ms from Atlanta, US
164.49.4.83 AS668 United States Department of Defense (DoD) 0.52ms from Atlanta, US
130.109.48.218 AS668 United States Department of Defense (DoD) 0.52ms from Atlanta, US
163.240.121.68 AS668 United States Department of Defense (DoD) 0.53ms from Atlanta, US
164.191.158.9 AS668 United States Department of Defense (DoD) 0.51ms from Atlanta, US
150.125.213.130 AS668 United States Department of Defense (DoD) 0.51ms from Atlanta, US
130.109.134.197 AS668 United States Department of Defense (DoD) 0.51ms from Atlanta, US
164.191.164.217 AS668 United States Department of Defense (DoD) 0.51ms from Atlanta, US
132.45.249.208 AS668 United States Department of Defense (DoD) 0.51ms from Atlanta, US
155.141.150.90 AS668 United States Department of Defense (DoD) 0.51ms from Atlanta, US
150.125.38.166 AS668 United States Department of Defense (DoD) 0.65ms from Atlanta, US
164.49.205.55 AS668 United States Department of Defense (DoD) 0.51ms from Atlanta, US
128.160.65.166 AS668 United States Department of Defense (DoD) 0.51ms from Atlanta, US
128.160.47.2 AS668 United States Department of Defense (DoD) 0.52ms from Atlanta, US
150.125.243.153 AS668 United States Department of Defense (DoD) 0.51ms from Atlanta, US
134.166.9.8 AS668 United States Department of Defense (DoD) 0.52ms from Atlanta, US
128.160.69.126 AS668 United States Department of Defense (DoD) 0.51ms from Atlanta, US
150.125.153.10 AS668 United States Department of Defense (DoD) 0.52ms from Atlanta, US
155.141.16.98 AS668 United States Department of Defense (DoD) 0.52ms from Atlanta, US
134.166.44.229 AS668 United States Department of Defense (DoD) 0.51ms from Atlanta, US
155.141.194.230 AS668 United States Department of Defense (DoD) 0.52ms from Atlanta, US
164.49.178.18 AS668 United States Department of Defense (DoD) 0.52ms from Atlanta, US

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
181.82.236.204 AS7303 Telecom Argentina S.A. 11.93ms from Buenos Aires, AR
94.7.248.124 AS5607 Sky UK Limited 4.67ms from Erith, GB
54.164.90.60 AS14618 Amazon.com, Inc. 0.21ms from Reston, US
213.222.96.92 AS49902 SOCIETE REUNIONNAISE DU RADIOTELEPHONE SCS 3.27ms from Saint-Denis, RE
96.113.87.92 AS7922 Comcast Cable Communications, LLC 4.00ms from Seattle, US
220.83.92.108 AS4766 Korea Telecom 3.82ms from Seoul, KR
89.137.117.60 AS12302 Vodafone Romania S.A. 12.17ms from Timisoara, RO
126.221.31.60 AS17676 SoftBank Corp. 3.23ms from Tokyo, JP
114.198.202.204 AS4721 JCOM Co., Ltd. 5.36ms from Tokyo, JP
195.123.127.108 AS328449 Teracom Communications 0.77ms from Zuerich, CH
46.244.109.44 AS39855 Mod Mission Critical LLC 0.26ms from Amsterdam, NL
44.228.81.220 AS16509 Amazon.com, Inc. 0.22ms from Boardman, US
100.40.68.220 AS701 Verizon Business 2.22ms from Boston, US
207.154.212.140 AS14061 DigitalOcean, LLC 0.49ms from Frankfurt am Main, DE
93.217.32.76 AS3320 Deutsche Telekom AG 1.08ms from Frankfurt am Main, DE
2.234.237.140 AS12874 Fastweb SpA 10.62ms from Milan, IT
112.236.140.140 AS4837 CHINA UNICOM China169 Backbone 8.78ms from Qingdao, CN
95.234.116.28 AS3269 Telecom Italia S.p.A. 8.36ms from Rende, IT
39.114.227.28 AS9318 SK Broadband Co Ltd 1.41ms from Seoul, KR
175.121.226.156 AS9318 SK Broadband Co Ltd 6.32ms from Seoul, KR
1.157.94.236 AS1221 Telstra Limited 5.59ms from Sydney, AU
73.106.66.188 AS7922 Comcast Cable Communications, LLC 4.84ms from Atlanta, US
47.108.92.76 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 0.10ms from Chengdu, CN
8.52.254.44 AS3356 Level 3 Parent, LLC 0.35ms from Dallas, US
97.213.84.44 AS6167 Verizon Business 13.38ms from Denver, US

Traceroute

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

$
traceroute -a -n -q1 -f3 -m12 131.122.56.33
traceroute to 131.122.56.33 (131.122.56.33): 12 hops max, 52 byte packets
3 [] 178.18.236.74 7.433 ms
4 *
5 *
6 *
7 *
9 [AS668] 140.6.249.251 80.512 ms
10 *
11 *
12 *
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 AS668 at robtex.

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