138.18.0.0/16

AS749 · United States Department of Defense (DoD)

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Summary

Country	United States
Domain	mail.mil
ASN	AS749
Registry	ARIN
ID	DREN

WHOIS Details

NetHandle:      NET-138-18-0-0-2
OrgID:          DNIC
Parent:         NET-138-18-0-0-1
NetName:        DREN
NetRange:       138.18.0.0 - 138.18.255.255
NetType:        reallocation
RegDate:        2025-08-29
Updated:        2025-08-29
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:      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:        2025-02-12
OfficePhone:    +1-844-347-2457
Mailbox:        disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
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
138.107.0.0/16	AS2497	OLYMPUS CORPORATION	65,536
138.62.0.0/16	AS25400	Norwegian State Railways	65,536
138.231.0.0/16	AS2269	Ecole Normale Superieure Paris-Saclay EPSCP	65,536
138.77.0.0/16	AS24433	Central Queensland University	65,536
138.247.0.0/16	AS23122	Dakota State University	65,536
138.201.0.0/16	AS24940	Server Block	65,536
138.90.0.0/16	AS16509	Amazon.com, Inc.	65,536
138.237.0.0/16	AS18791	Texas Christian University	65,536
138.210.0.0/16	AS2379	CenturyLink Communications, LLC	65,536
138.102.0.0/16	AS2200	INRAE	65,536
138.210.0.0/16	AS22186	CenturyLink Communications, LLC	65,536
138.195.0.0/16	AS2200	CENTRALESUPELEC	65,536
138.29.0.0/16	AS22742	Coast Guard Academy	65,536
138.254.0.0/16	AS243	L3Harris Technologies, Inc.	65,536
138.52.0.0/16	AS16509	Amazon.com, Inc.	65,536
138.70.0.0/16	AS16509	Amazon.com, Inc.	65,536
138.15.0.0/16	AS10753	NEC Laboratories America, Inc.	65,536
138.63.0.0/16	AS1715	Centre Europeen de Recherches et Formation Avancee en Calcul Scientifique	65,536
138.243.0.0/16	AS23779	NTT Communications Corporation	65,536
138.9.0.0/16	AS18663	University of the Pacific	65,536
138.22.0.0/16	AS1853	GeoSphere Austria	65,536
138.192.0.0/16	AS21727	Hamline University	65,536
138.34.0.0/16	AS16509	Amazon.com, Inc.	65,536
138.37.0.0/16	AS198864	Queen Mary University of London	65,536
138.216.0.0/16	AS214692	Tuve-palvelut	65,536
138.106.0.0/16	AS202116	SCANIA CV AB	65,536
138.220.0.0/16	AS10497	IBRD	65,536
138.240.0.0/16	AS16509	Amazon.com, Inc.	65,536
138.195.0.0/16	AS212424	CENTRALESUPELEC	65,536
138.66.0.0/16	AS20981	Prov. Casamassima Km.3	65,536
138.210.0.0/16	AS11398	CenturyLink Communications, LLC	65,536
138.101.0.0/16	AS16509	Nikkei Inc.	65,536
138.130.0.0/16	AS1221	Telstra Limited	65,536
138.217.0.0/16	AS1221	Telstra Limited	65,536
138.189.0.0/16	AS12511	Post CH AG	65,536
138.191.0.0/16	AS12511	Post CH AG	65,536
138.246.0.0/16	AS12816	Ludwig-Maximilians-Universitaet Muenchen	65,536
138.210.0.0/16	AS14921	CenturyLink Communications, LLC	65,536
138.92.0.0/16	AS11482	Canisius College	65,536
138.210.0.0/16	AS22561	CenturyLink Communications, LLC	65,536
138.27.0.0/16	AS1540	Headquarters, USAISC	65,536
138.86.0.0/16	AS15295	University of Northern Colorado	65,536
138.103.0.0/16	AS15830	AB Sandvik	65,536
138.41.0.0/16	AS137	DIR-GARR - Roma	65,536
138.236.0.0/16	AS17234	Gustavus Adolphus College	65,536
138.50.0.0/16	AS1565	Headquarters, USAISC	65,536
138.232.0.0/16	AS1110	University of Innsbruck	65,536
138.111.0.0/16	AS16509	Amazon Technologies Inc.	65,536
138.47.0.0/16	AS19564	Louisiana Tech University	65,536
138.48.0.0/16	AS2611	Facultes Universitaires Notre Dame de la Paix	65,536

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
138.18.2.37	ontowiki.eu	1

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
110.174.228.80	AS7545 TPG Telecom Limited	`1.58ms` from Brisbane, AU
178.208.37.64	AS34762 Combell NV	`0.52ms` from Brussels, BE
58.46.165.48	AS4134 CHINANET-BACKBONE	`7.81ms` from Changsha, CN
72.135.150.160	AS10796 Charter Communications Inc	`4.43ms` from Chicago, US
72.105.135.80	AS6167 Verizon Business	`15.39ms` from Chicago, US
52.57.57.96	AS16509 Amazon.com, Inc.	`0.19ms` from Frankfurt am Main, DE
84.57.171.0	AS3209 Vodafone GmbH	`11.31ms` from Frankfurt am Main, DE
46.5.218.48	AS3209 Vodafone GmbH	`8.44ms` from Frankfurt am Main, DE
91.84.14.208	AS8851 GCI Network Solutions Limited	`5.71ms` from Manchester, GB
134.209.44.240	AS14061 DigitalOcean, LLC	`0.57ms` from New York City, US
88.162.248.144	AS12322 Free SAS	`7.05ms` from Paris, FR
90.46.200.176	AS3215 Orange S.A.	`6.08ms` from Paris, FR
27.1.59.0	AS9943 KangNam CableTV	`0.85ms` from Seoul, KR
114.166.249.128	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.38ms` from Tokyo, JP
103.240.53.16	AS38319 Lincoln University, Canterbury, New Zealand	`0.76ms` from Auckland, NZ
101.30.2.64	AS4837 CHINA UNICOM China169 Backbone	`5.26ms` from Beijing, CN
54.185.123.160	AS16509 Amazon.com, Inc.	`0.14ms` from Boardman, US
54.216.156.96	AS16509 Amazon.com, Inc.	`0.30ms` from Dublin, IE
84.159.152.192	AS3320 Deutsche Telekom AG	`3.45ms` from Duesseldorf, DE
51.107.254.80	AS8075 Microsoft Corporation	`0.65ms` from Geneve, CH
86.150.251.240	AS2856 British Telecommunications PLC	`10.17ms` from London, GB
176.254.114.128	AS5607 Sky UK Limited	`7.98ms` from London, GB
112.204.148.48	AS9299 Philippine Long Distance Telephone Company	`1.25ms` from Manila, PH
86.194.198.224	AS3215 Orange S.A.	`5.84ms` from Marseille, FR
213.209.240.0	AS21309 HERABIT S.p.A.	`10.38ms` 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 -f4 -m8 138.18.115.47

traceroute to 138.18.115.47 (138.18.115.47): 8 hops max, 52 byte packets

4 [AS212317] 5.78.0.193 24.453 ms

5 [AS212317] 5.78.0.77 0.437 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Hillsboro, US

On December 28th 2025

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.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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