138.138.132.0/22

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:      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 138.138.0.0/16

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
178.229.122.166	AS31615 Odido Netherlands B.V.	`18.43ms` from Amsterdam, NL
40.160.35.230	AS16276 OVH SAS	`1.34ms` from Ashburn, US
155.190.208.22	AS36692 Cisco OpenDNS, LLC	`0.28ms` from Ashburn, US
125.237.76.102	AS4771 Spark New Zealand Trading Ltd.	`12.42ms` from Auckland, NZ
110.77.131.22	AS131090 CAT TELECOM Public Company Ltd,CAT	`3.34ms` from Bangkok, TH
70.113.11.86	AS11427 Charter Communications Inc	`11.07ms` from Dallas, US
117.201.25.182	AS9829 National Internet Backbone	`16.74ms` from Delhi, IN
218.85.77.230	AS4134 CHINANET-BACKBONE	`2.28ms` from Fuzhou, CN
177.229.228.246	AS13999 Mega Cable, S.A. de C.V.	`1.35ms` from Guadalajara, MX
8.212.47.198	AS45102 Alibaba (US) Technology Co., Ltd.	`0.76ms` from Hong Kong, HK
60.172.32.246	AS4134 CHINANET-BACKBONE	`10.71ms` from Huai'an, CN
18.171.183.198	AS16509 Amazon.com, Inc.	`0.19ms` from London, GB
109.158.87.86	AS2856 British Telecommunications PLC	`6.21ms` from London, GB
71.176.66.22	AS701 Verizon Business	`9.79ms` from Morris Plains, US
80.225.237.38	AS31898 Oracle Corporation	`0.16ms` from Mumbai, IN
95.190.180.150	AS12389 PJSC Rostelecom	`7.03ms` from Novosibirsk, RU
213.151.80.166	AS29208 Quantcom, a.s.	`0.56ms` from Prague, CZ
27.194.213.246	AS4837 CHINA UNICOM China169 Backbone	`5.19ms` from Qingdao, CN
18.215.208.214	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
89.194.28.214	AS8011 MongoDB, Inc.	`0.16ms` from Reston, US
88.44.175.198	AS3269 Telecom Italia S.p.A.	`3.84ms` from Rome, IT
50.87.160.198	AS46606 Unified Layer	`2.00ms` from Salt Lake City, US
182.226.74.198	AS17858 LG POWERCOMM	`3.46ms` from Seoul, KR
95.35.55.230	AS1680 Cellcom Fixed Line Communication L.P	`14.14ms` from Tel Aviv, IL
221.71.217.246	AS17676 SoftBank Corp.	`3.56ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 -f2 -m6 138.138.135.124

traceroute to 138.138.135.124 (138.138.135.124): 6 hops max, 52 byte packets

2 [AS41427] 193.164.140.13 0.579 ms

3 [AS3356] 212.162.28.77 0.629 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Ljubljana, SI

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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