138.50.0.0/16

AS721 · United States Department of Defense (DoD)

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Summary

Country	United States
Domain	mail.mil
ASN	AS721
Registry	ARIN
ID	USAREUR69E

WHOIS Details

NetHandle:      NET-138-50-0-0-2
OrgID:          HEADQU-3
Parent:         NET-138-50-0-0-1
NetName:        USAREUR69E
NetRange:       138.50.0.0 - 138.50.255.255
NetType:        reallocation
RegDate:        2025-08-21
Updated:        2025-08-21
Source:         ARIN


OrgID:          HEADQU-3
OrgName:        Headquarters, USAISC
CanAllocate:    
Street:         NETC-ANC CONUS TNOSC
City:           Fort Huachuca
State/Prov:     AZ
Country:        US
PostalCode:     85613
RegDate:        1990-03-26
Updated:        2025-03-13
OrgAdminHandle: REGIS10-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:        2025-02-13
OfficePhone:    +1-844-347-2457
Mailbox:        disa.columbus.ns.mbx.arin-registrations@mail.mil
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 138.0.0.0/8

Range	ASN	Company	Num of IPs
138.23.0.0/16	AS6106	University of California, Riverside	65,536
138.119.0.0/16	AS611	University of New Brunswick	65,536
138.210.0.0/16	AS5778	CenturyLink Communications, LLC	65,536
138.80.0.0/16	AS58611	Charles Darwin University	65,536
138.180.0.0/16	AS5839	Navy Network Information Center (NNIC)	65,536
138.116.0.0/16	AS33004	SUNY Empire State University	65,536
138.102.0.0/16	AS2200	INRAE	65,536
138.233.0.0/16	AS56736	Vastra Gotalandsregionen	65,536
138.49.0.0/16	AS3128	University of Wisconsin-La Crosse	65,536
138.131.0.0/16	AS559	CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Developpement	65,536
138.210.0.0/16	AS29817	CenturyLink Communications, LLC	65,536
138.9.0.0/16	AS18663	University of the Pacific	65,536
138.48.0.0/16	AS2611	Facultes Universitaires Notre Dame de la Paix	65,536
138.63.0.0/16	AS1715	Centre Europeen de Recherches et Formation Avancee en Calcul Scientifique	65,536
138.195.0.0/16	AS212424	CENTRALESUPELEC	65,536
138.254.0.0/16	AS243	L3Harris Technologies, Inc.	65,536
138.13.0.0/16	AS56	Air Force Systems Networking	65,536
138.51.0.0/16	AS239	University of Toronto	65,536
138.210.0.0/16	AS22561	CenturyLink Communications, LLC	65,536
138.29.0.0/16	AS22742	Coast Guard Academy	65,536
138.26.0.0/16	AS3452	University of Alabama at Birmingham - University Computer Center	65,536
138.225.0.0/16	AS20868	ABB Information Systems Ltd	65,536
138.77.0.0/16	AS24433	Central Queensland University	65,536
138.201.0.0/16	AS24940	Server Block	65,536
138.237.0.0/16	AS18791	Texas Christian University	65,536
138.220.0.0/16	AS10497	IBRD	65,536
138.22.0.0/16	AS1853	GeoSphere Austria	65,536
138.107.0.0/16	AS2497	OLYMPUS CORPORATION	65,536
138.62.0.0/16	AS25400	Norwegian State Railways	65,536
138.210.0.0/16	AS11398	CenturyLink Communications, LLC	65,536
138.41.0.0/16	AS137	DIR-GARR - Roma	65,536
138.246.0.0/16	AS12816	Ludwig-Maximilians-Universitaet Muenchen	65,536
138.66.0.0/16	AS20981	Prov. Casamassima Km.3	65,536
138.15.0.0/16	AS10753	NEC Laboratories America, Inc.	65,536
138.216.0.0/16	AS214692	Tuve-palvelut	65,536
138.192.0.0/16	AS21727	Hamline University	65,536
138.210.0.0/16	AS14921	CenturyLink Communications, LLC	65,536
138.92.0.0/16	AS11482	Canisius College	65,536
138.132.0.0/16	AS20746	Italtel SPA	65,536
138.195.0.0/16	AS2200	CENTRALESUPELEC	65,536
138.210.0.0/16	AS22186	CenturyLink Communications, LLC	65,536
138.106.0.0/16	AS202116	SCANIA CV AB	65,536
138.231.0.0/16	AS2269	Ecole Normale Superieure Paris-Saclay EPSCP	65,536
138.247.0.0/16	AS23122	Dakota State University	65,536
138.243.0.0/16	AS23779	NTT Communications Corporation	65,536
138.232.0.0/16	AS1110	University of Innsbruck	65,536
138.236.0.0/16	AS17234	Gustavus Adolphus College	65,536
138.210.0.0/16	AS209	CenturyLink Communications, LLC	65,536
138.73.0.0/16	AS611	Mount Allison University	65,536

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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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
75.133.98.48	AS20115 Charter Communications LLC	`8.97ms` from Ashburn, US
147.124.60.48	AS21981 Easton Utilities Commission	`3.98ms` from Ashburn, US
190.175.49.240	AS22927 Telefonica de Argentina	`1.65ms` from Buenos Aires, AR
14.18.202.240	AS4134 CHINANET-BACKBONE	`2.59ms` from Guangzhou, CN
120.55.204.0	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`3.83ms` from Hangzhou, CN
72.235.203.144	AS36149 Hawaiian Telcom Services Company, Inc.	`6.48ms` from Honolulu, US
13.135.122.224	AS16509 Amazon.com, Inc.	`0.21ms` from London, GB
13.135.5.176	AS16509 Amazon.com, Inc.	`0.16ms` from London, GB
95.239.93.192	AS3269 Telecom Italia S.p.A.	`2.03ms` from Milan, IT
79.35.73.112	AS3269 Telecom Italia S.p.A.	`5.14ms` from Naples, IT
131.161.179.208	AS264384 Linejet servios de telecomunicaes ltd	`6.95ms` from Osasco, BR
95.218.196.80	AS25019 Saudi Telecom Company JSC	`3.56ms` from Riyadh, SA
52.55.128.144	AS14618 Amazon.com, Inc.	`0.51ms` from Ashburn, US
68.134.195.192	AS701 Verizon Business	`5.07ms` from Ashburn, US
98.122.78.96	AS11426 Charter Communications Inc	`15.17ms` from Atlanta, US
121.79.203.176	AS17705 InSPire Net Ltd	`8.87ms` from Auckland, NZ
46.178.98.192	AS5432 Proximus NV	`14.97ms` from Brussels, BE
119.48.227.80	AS4837 CHINA UNICOM China169 Backbone	`3.41ms` from Changchun, CN
51.187.231.240	AS5607 Sky UK Limited	`1.49ms` from Dublin, IE
47.151.185.176	AS5650 Frontier Communications of America, Inc.	`4.17ms` from Los Angeles, US
94.75.191.224	AS12389 PJSC Rostelecom	`11.89ms` from Moscow, RU
23.72.187.192	AS16625 Akamai Technologies, Inc.	`0.75ms` from New York City, US
133.218.140.208	AS2497 Internet Initiative Japan Inc.	`12.28ms` from Osaka, JP
73.52.187.112	AS7922 Comcast Cable Communications, LLC	`5.49ms` from Salt Lake City, US
211.244.192.112	AS9318 SK Broadband Co Ltd	`7.96ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 -f3 -m7 138.50.133.165

traceroute to 138.50.133.165 (138.50.133.165): 7 hops max, 52 byte packets

3 [AS3356] 171.75.10.249 92.793 ms

4 [AS3356] 62.67.79.154 107.179 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Charlotte, US

On December 28th 2025

What are IP address ranges?

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