131.66.0.0/16

AS138 · United States Department of Defense (DoD)

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Summary

Country	United States
Domain	mail.mil
ASN	AS138
Registry	ARIN
ID	DCMA-EAST

WHOIS Details

NetHandle:      NET-131-66-0-0-2
OrgID:          DNIC
Parent:         NET-131-66-0-0-1
NetName:        DCMA-EAST
NetRange:       131.66.0.0 - 131.66.255.255
NetType:        reallocation
RegDate:        2025-08-28
Updated:        2025-08-28
Source:         ARIN


OrgID:          DNIC
OrgName:        DoD Network Information Center
CanAllocate:    
Street:         3990 E. Broad Street
City:           Columbus
State/Prov:     OH
Country:        US
PostalCode:     43218
RegDate:        1970-01-01
Updated:        2025-03-13
OrgAdminHandle: MIL-HSTMST-ARIN
OrgTechHandle:  MIL-HSTMST-ARIN
OrgTechHandle:  REGIS10-ARIN
OrgAbuseHandle: REGIS10-ARIN
Source:         ARIN


POCHandle:      REGIS10-ARIN
IsRole:         Y
LastName:       Registration
FirstName:      
Street:         DISA-Columbus
Street:         300 North James Road
City:           Whitehall
State/Prov:     OH
Country:        US
PostalCode:     43213
RegDate:        2009-06-24
Updated:        2026-02-12
OfficePhone:    +1-844-347-2457
Mailbox:        disa.columbus.ns.mbx.arin-registrations@mail.mil
Source:         ARIN


POCHandle:      MIL-HSTMST-ARIN
IsRole:         Y
LastName:       Network DoD
FirstName:      
Street:         DISA-Columbus
Street:         300 North James Road
City:           Whitehall
State/Prov:     OH
Country:        US
PostalCode:     43213
RegDate:        1993-05-26
Updated:        2026-02-12
OfficePhone:    +1-844-347-2457
Mailbox:        disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 131.0.0.0/8

Range	ASN	Company	Num of IPs
131.244.0.0/15	AS24014	Bond University Limited	131,072
131.187.0.0/16	AS22320	OARnet	65,536
131.203.0.0/16	AS132264	Two Degrees Mobile Limited	65,536
131.177.0.0/16	AS1759	Telia Finland Oyj	65,536
131.1.0.0/16	AS20746	OLIVETTI S.p.A.	65,536
131.212.0.0/16	AS217	University of Minnesota	65,536
131.67.0.0/16	AS138	DoD Network Information Center	65,536
131.160.0.0/16	AS158	Oy L M Ericsson Ab	65,536
131.115.0.0/16	AS1729	Telia Company AB	65,536
131.169.0.0/16	AS1754	Deutsches Elektronen-Synchrotron DESY	65,536
131.93.0.0/16	AS20115	Charter Communications LLC	65,536
131.175.0.0/16	AS198949	CINECA Consorzio Interuniversitario	65,536
131.246.0.0/16	AS199578	Rheinland-Pfaelzische Technische Universitaet Kaiserslautern-Landau	65,536
131.183.0.0/16	AS2025	University of Toledo	65,536
131.109.0.0/16	AS14464	Rhode Island Network for Educ. Technology	65,536
131.128.0.0/16	AS14348	University of Rhode Island	65,536
131.230.0.0/16	AS15119	Southern Illinois University Carbondale	65,536
131.230.0.0/16	AS15118	Southern Illinois University Carbondale	65,536
131.127.0.0/16	AS16509	Amazon.com, Inc.	65,536
131.168.0.0/16	AS16509	Amazon.com, Inc.	65,536
131.116.0.0/16	AS1729	Telia Company AB	65,536
131.142.0.0/16	AS1742	Smithsonian Astrophysical Observatory	65,536
131.128.0.0/16	AS14325	University of Rhode Island	65,536
131.211.0.0/16	AS1103	Heidelberglaan 8	65,536
131.239.0.0/16	AS11426	Crown Castle Fiber LLC	65,536
131.254.0.0/16	AS1938	Institut National de Recherche en Informatique et Automatique de Rennes	65,536
131.155.0.0/16	AS1161	Technische Universiteit Eindhoven	65,536
131.96.0.0/16	AS10631	Georgia State University	65,536
131.224.0.0/16	AS1103	Rijksinstituut voor Volksgezondheid en Milieuhygiene	65,536
131.197.0.0/16	AS19773	Motorola - Network Computing Services	65,536
131.194.0.0/16	AS19342	Trinity University	65,536
131.123.0.0/16	AS11050	Kent State University	65,536
131.167.0.0/16	AS13335	BATTELLE MEMORIAL INSTITUTE	65,536
131.190.0.0/16	AS11003	The Procter and Gamble Company	65,536
131.180.0.0/16	AS1128	P.O. Box 354	65,536
131.198.0.0/16	AS1341	Rockwell Collins, Inc.	65,536
131.199.0.0/16	AS1341	Rockwell Collins, Inc.	65,536
131.203.0.0/16	AS134359	Two Degrees Mobile Limited	65,536
131.91.0.0/16	AS12013	Florida Atlantic University	65,536
131.243.0.0/16	AS16	Lawrence Berkeley National Laboratory	65,536
131.174.0.0/16	AS1103	Radboud Universiteit	65,536
131.68.0.0/16	AS138	DoD Network Information Center	65,536
131.172.0.0/16	AS135893	LATROBE UNIVERSITY	65,536
131.151.0.0/16	AS11348	Missouri University of Science and Technology	65,536
131.114.0.0/16	AS137	UNI-Pisa	65,536
131.154.0.0/16	AS137	INFN - CNAF - Bologna	65,536
131.175.0.0/16	AS137	CINECA Consorzio Interuniversitario	65,536
131.156.0.0/16	AS11417	Northern Illinois University	65,536
131.159.0.0/16	AS209335	Technical University of Munich	65,536

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

No IPs in this range 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
100.31.224.128	AS14618 Amazon.com, Inc.	`0.49ms` from Ashburn, US
216.110.168.64	AS394838 Pulse	`2.63ms` from Denver, US
151.56.121.80	AS1267 WIND TRE S.P.A.	`11.23ms` from Frosinone, IT
47.99.52.160	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`4.72ms` from Hangzhou, CN
103.173.155.32	AS135905 VIETNAM POSTS AND TELECOMMUNICATIONS GROUP	`0.75ms` from Hanoi, VN
43.198.16.176	AS16509 Amazon.com, Inc.	`0.36ms` from Hong Kong, HK
184.120.33.176	AS212465 Comcast International Holdings UK Limited	`12.50ms` from London, GB
203.21.115.144	AS133612 Vodafone Australia Pty Ltd	`1.18ms` from Melbourne, AU
208.112.194.64	AS396982 Google LLC	`0.07ms` from Milan, IT
50.86.249.48	AS11272 C Spire Fiber	`6.69ms` from New Orleans, US
118.104.208.208	AS18126 Chubu Telecommunications Company, Inc.	`4.29ms` from Osaka, JP
204.89.62.48	AS25843 EvolveIP, LLC	`0.39ms` from Philadelphia, US
27.199.250.192	AS4837 CHINA UNICOM China169 Backbone	`6.53ms` from Qingdao, CN
106.250.46.16	AS3786 LG DACOM Corporation	`1.87ms` from Seoul, KR
118.53.178.224	AS4766 Korea Telecom	`1.51ms` from Seoul, KR
110.15.93.80	AS9318 SK Broadband Co Ltd	`1.53ms` from Seoul, KR
20.21.39.128	AS8075 Microsoft Corporation	`0.22ms` from Az Za`ayin, QA
82.137.2.32	AS8708 DIGI ROMANIA S.A.	`4.72ms` from Bucharest, RO
18.254.96.80	AS8987 Amazon Data Services Ireland Ltd	`0.77ms` from Columbus, US
85.22.99.192	AS15763 DOKOM Gesellschaft fuer Telekommunikation mbH	`2.23ms` from Duesseldorf, DE
187.211.246.224	AS8151 UNINET	`9.40ms` from Guadalajara, MX
98.200.24.176	AS7922 Comcast Cable Communications, LLC	`4.32ms` from Houston, US
45.76.137.160	AS20473 The Constant Company, LLC	`0.20ms` from London, GB
99.1.237.96	AS7018 AT&T Enterprises, LLC	`17.46ms` from Miami, US
31.196.202.224	AS3269 Telecom Italia S.p.A.	`3.11ms` from Milan, IT

Traceroute

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

traceroute -a -n -q1 -f3 -m9 131.66.188.110

traceroute to 131.66.188.110 (131.66.188.110): 9 hops max, 52 byte packets

3 [AS1299] 62.115.193.28 2.044 ms

4 *

5 *

6 [AS3356] 65.56.131.54 107.22 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Amsterdam, NL

On March 13th 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

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