138.138.116.0/22

AS5972 · United States Department of Defense (DoD)

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Summary

Country	United States
Domain	mail.mil
ASN	AS5972
Registry	ARIN
ID	CERNERBLOCK

WHOIS Details

NetHandle:      NET-138-138-0-0-2
OrgID:          DNIC
Parent:         NET-138-138-0-0-1
NetName:        CERNERBLOCK
NetRange:       138.138.0.0 - 138.138.255.255
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:        2025-02-13
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:        2025-02-12
OfficePhone:    +1-844-347-2457
Mailbox:        disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 138.138.0.0/16

No nearby ranges found.

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
40.76.234.214	AS8075 Microsoft Corporation	`0.50ms` from Ashburn, US
162.192.29.166	AS7018 AT&T Enterprises, LLC	`10.23ms` from Atlanta, US
97.119.198.70	AS209 CenturyLink Communications, LLC	`10.60ms` from Chicago, US
98.206.241.214	AS7922 Comcast Cable Communications, LLC	`6.94ms` from Chicago, US
115.249.160.230	AS18101 Reliance Communications Ltd.DAKC MUMBAI	`1.87ms` from Delhi, IN
54.77.13.230	AS16509 Amazon.com, Inc.	`0.18ms` from Dublin, IE
2.164.67.6	AS3320 Deutsche Telekom AG	`12.90ms` from Hamburg, DE
223.122.175.134	AS137872 China Mobile Hong Kong Company Limited	`2.19ms` from Hong Kong, HK
211.137.228.118	AS132525 HeiLongJiang Mobile Communication Company Limited	`18.02ms` from Liaoyang, CN
94.133.175.102	AS2860 NOS COMUNICACOES, S.A.	`14.18ms` from Lisbon, PT
85.139.221.54	AS2860 NOS COMUNICACOES, S.A.	`7.09ms` from Lisbon, PT
195.38.85.246	AS5413 Wavenet Limited	`1.97ms` from London, GB
99.119.24.182	AS7018 AT&T Enterprises, LLC	`2.13ms` from Miami, US
200.164.149.246	AS7738 V tal	`11.10ms` from Rio de Janeiro, BR
202.43.53.246	AS3786 LG DACOM Corporation	`0.95ms` from Seoul, KR
54.253.153.54	AS16509 Amazon.com, Inc.	`0.11ms` from Sydney, AU
36.237.186.70	AS3462 Data Communication Business Group	`3.98ms` from Taichung, TW
153.224.138.54	AS4713 NTT DOCOMO BUSINESS,Inc.	`16.23ms` from Tokyo, JP
180.22.34.118	AS4713 NTT DOCOMO BUSINESS,Inc.	`10.39ms` from Tokyo, JP
192.42.123.22	AS1103 SURF B.V.	`1.31ms` from Amsterdam, NL
117.10.38.134	AS4837 CHINA UNICOM China169 Backbone	`4.69ms` from Beijing, CN
146.70.150.38	AS9009 M247 Europe SRL	`0.29ms` from Bucharest, RO
122.161.30.166	AS24560 Bharti Airtel Ltd., Telemedia Services	`11.95ms` from Chennai, IN
107.192.251.214	AS7018 AT&T Enterprises, LLC	`7.30ms` from Columbus, US
109.85.9.86	AS3209 Vodafone GmbH	`1.71ms` from Hamburg, DE

Traceroute

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

traceroute -a -n -q1 -f3 -m6 138.138.118.242

traceroute to 138.138.118.242 (138.138.118.242): 6 hops max, 52 byte packets

3 [AS39386] 178.86.50.108 0.477 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Riyadh, SA

On November 14th 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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