138.138.128.0/23

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

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
96.97.11.23 AS7922 Comcast Cable Communications, LLC 0.45ms from Chicago, US
72.177.207.151 AS11427 Charter Communications Inc 9.04ms from Houston, US
192.248.172.135 AS20473 The Constant Company, LLC 0.17ms from London, GB
122.55.30.55 AS9299 Philippine Long Distance Telephone Company 0.62ms from Manila, PH
208.106.136.7 AS14992 NewtekOne, Inc. 2.06ms from Phoenix, US
54.166.15.87 AS14618 Amazon.com, Inc. 0.23ms from Reston, US
18.209.217.103 AS14618 Amazon.com, Inc. 0.21ms from Reston, US
177.121.99.135 AS26615 TIM S/A 1.76ms from Rio de Janeiro, BR
181.72.187.7 AS6535 Telmex Servicios Empresariales S.A. 2.13ms from Santiago, CL
186.235.36.215 AS270814 ZAAZ PROVEDOR DE INTERNET E TELECOMUNICACOES LTDA 6.40ms from Sao Paulo, BR
112.146.23.231 AS17858 LG POWERCOMM 2.10ms from Seoul, KR
107.15.146.39 AS11426 Charter Communications Inc 9.92ms from Ashburn, US
91.242.24.55 AS39232 Uninet LLC 3.50ms from Baku, AZ
8.131.115.183 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 2.08ms from Beijing, CN
64.251.121.231 AS32102 Massachusetts Convention Center Authority 0.94ms from Boston, US
46.5.245.231 AS3209 Vodafone GmbH 11.65ms from Frankfurt am Main, DE
84.58.255.55 AS3209 Vodafone GmbH 2.25ms from Frankfurt am Main, DE
85.106.204.167 AS9121 Turk Telekomunikasyon Anonim Sirketi 7.22ms from Istanbul, TR
34.94.182.247 AS396982 Google LLC 0.08ms from Los Angeles, US
2.238.119.103 AS12874 Fastweb SpA 3.09ms from Milan, IT
124.133.201.39 AS4837 CHINA UNICOM China169 Backbone 6.37ms from Qingdao, CN
89.189.132.247 AS24955 JSC "Ufanet" 7.60ms from Samara, RU
128.32.85.7 AS25 University of California at Berkeley 2.95ms from San Jose, US
129.227.58.183 AS21859 Zenlayer Inc 0.27ms from Taipei, TW
188.23.72.199 AS8447 A1 Telekom Austria AG 8.63ms from Vienna, AT

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 138.138.128.161
traceroute to 138.138.128.161 (138.138.128.161): 7 hops max, 52 byte packets
3 [AS9002] 87.245.230.95 4.206 ms
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Astana, KZ
On

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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