1. All IP Ranges
  2. 143.0.0.0/8
  3. AS721  | 143.138.0.0/15

143.138.0.0/15

AS721  ·  United States Department of Defense (DoD)

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Summary

Country United States
Domain mail.mil
ASN AS721
Registry ARIN
ID KOREA1

WHOIS Details

NetHandle:      NET-143-138-0-0-2
OrgID:          HEADQU-3
Parent:         NET-143-138-0-0-1
NetName:        KOREA1
NetRange:       143.138.0.0 - 143.138.255.255
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:        [email protected]
Source:         ARIN

Overlapping Ranges

BGP prefixes that are contained by 143.138.0.0/15

Range ASN Company Num of IPs
143.138.0.0/16 AS5277 Headquarters, USAISC 65,536
143.138.0.0/16 AS721 Headquarters, USAISC 65,536

Nearby Ranges

BGP prefixes that overlap with 143.0.0.0/8

Range ASN Company Num of IPs
143.166.0.0/16 AS3614 Dell, Inc. 65,536
143.89.0.0/16 AS3363 Hong Kong University of Science and Technology 65,536
143.120.0.0/16 AS26439 City of Albuquerque 65,536
143.100.0.0/16 AS3479 Georgia Department of Transportation 65,536
143.235.0.0/16 AS3128 University of Wisconsin System Administration 65,536
143.236.0.0/16 AS3128 University of Wisconsin-Stevens Point 65,536
143.118.0.0/16 AS1881 FMV 65,536
143.76.0.0/16 AS1540 Headquarters, USAISC 65,536
143.169.0.0/16 AS2611 Universiteit Antwerpen 65,536
143.94.0.0/16 AS2497 FUJIFILM Business Innovation Corp. Information & Communication Systems 65,536
143.128.0.0/16 AS2018 University of Kwazulu-Natal 65,536
143.228.0.0/16 AS1999 U.S. House of Representatives 65,536
143.200.0.0/16 AS3128 University of Wisconsin - Green Bay 65,536
143.84.0.0/16 AS27064 Headquarters, USAISC 65,536
143.76.0.0/16 AS1501 Headquarters, USAISC 65,536
143.73.0.0/16 AS1501 Headquarters, USAISC 65,536
143.76.0.0/16 AS1502 Headquarters, USAISC 65,536
143.74.0.0/16 AS1540 Headquarters, USAISC 65,536
143.212.0.0/16 AS1602 Headquarters, USAISC 65,536
143.88.0.0/16 AS18553 University of West Florida 65,536
143.240.0.0/16 AS174 Performance Systems International, Incorporated 65,536
143.224.0.0/16 AS2036 Joanneum Research 65,536
143.231.0.0/16 AS1999 U.S. House of Representatives 65,536
143.54.0.0/16 AS19200 Universidade Federal do Rio Grande do Sul 65,536
143.48.0.0/16 AS13748 Cold Spring Harbor Laboratory 65,536
143.239.0.0/16 AS1213 Campus Network 65,536
143.50.0.0/16 AS1114 Universitaet Graz 65,536
143.129.0.0/16 AS2611 Universiteit Antwerpen 65,536
143.232.0.0/16 AS270 National Aeronautics and Space Administration 65,536
143.69.0.0/16 AS27064 Headquarters, USAISC 65,536
143.238.0.0/16 AS1221 Telstra Limited 65,536
143.59.0.0/16 AS12083 WideOpenWest Finance LLC 65,536
143.164.0.0/16 AS12331 Audi AG, Ingolstadt 65,536
143.69.0.0/16 AS1493 Headquarters, USAISC 65,536
143.108.0.0/16 AS1251 FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO SÃO PAULO 65,536
143.205.0.0/16 AS1111 Universitaet Klagenfurt 65,536
143.176.0.0/16 AS13127 Tele2 Nederland B.V. 65,536
143.69.0.0/16 AS1540 Headquarters, USAISC 65,536
143.121.0.0/16 AS1103 Universitair Medisch Centrum Utrecht 65,536
143.79.0.0/16 AS1540 Headquarters, USAISC 65,536
143.74.0.0/16 AS1600 Headquarters, USAISC 65,536
143.84.0.0/16 AS1540 Headquarters, USAISC 65,536
143.214.0.0/16 AS1602 Headquarters, USAISC 65,536
143.213.0.0/16 AS1602 Headquarters, USAISC 65,536
143.45.0.0/16 AS1649 Headquarters, USAISC 65,536
143.170.0.0/16 AS16504 Granite Telecommunications LLC 65,536
143.111.0.0/16 AS11773 The University Of Texas M.D. Anderson Cancer Center 65,536
143.207.0.0/16 AS19106 Andrews University 65,536
143.225.0.0/16 AS137 UNI-Napoli Federico II 65,536
143.229.0.0/16 AS36427 Vassar College 65,536

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
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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
52.24.30.95 AS16509 Amazon.com, Inc. 0.16ms from Boardman, US
204.188.207.47 AS46844 Sharktech 1.00ms from Chicago, US
79.227.74.191 AS3320 Deutsche Telekom AG 3.39ms from Frankfurt am Main, DE
112.197.66.191 AS45543 SaiGon Tourist cable Televition Company 1.21ms from Ho Chi Minh City, VN
88.247.208.223 AS9121 Turk Telekomunikasyon Anonim Sirketi 1.88ms from Izmir, TR
107.149.230.15 AS398823 PEG TECH INC 9.81ms from Los Angeles, US
2.139.241.239 AS3352 TELEFONICA DE ESPANA S.A.U. 2.06ms from Madrid, ES
87.3.201.15 AS3269 Telecom Italia S.p.A. 5.96ms from Milan, IT
194.182.71.239 AS24806 INTERNET CZ, a.s. 3.51ms from Prague, CZ
179.134.87.111 AS26599 TELEFÔNICA BRASIL S.A 18.07ms from Rio de Janeiro, BR
84.227.168.47 AS6730 Sunrise GmbH 0.99ms from Zuerich, CH
86.81.183.31 AS1136 KPN B.V. 1.15ms from Amsterdam, NL
181.122.17.31 AS23201 Telecel S.A. 9.96ms from Asuncion, PY
52.35.26.223 AS16509 Amazon.com, Inc. 0.21ms from Boardman, US
24.247.255.15 AS20115 Charter Communications LLC 9.01ms from Chicago, US
23.77.248.143 AS16625 Akamai Technologies, Inc. 0.20ms from Copenhagen, DK
91.42.221.127 AS3320 Deutsche Telekom AG 6.95ms from Frankfurt am Main, DE
154.218.69.95 AS134548 DXTL Tseung Kwan O Service 0.74ms from Hong Kong, HK
160.120.183.143 AS29571 Orange Côte d'Ivoire 16.45ms from Lagos, NG
47.19.45.15 AS6128 Cablevision Systems Corp. 2.83ms from New York City, US
99.119.10.143 AS7018 AT&T Enterprises, LLC 4.93ms from San Jose, US
92.54.246.79 AS35805 JSC "Silknet" 3.16ms from Tbilisi, GE
60.121.168.47 AS17676 SoftBank Corp. 2.81ms from Tokyo, JP
34.85.77.255 AS396982 Google LLC 0.13ms from Tokyo, JP
171.115.215.255 AS4134 CHINANET-BACKBONE 9.22ms from Wuhan, CN

Traceroute

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

$
traceroute -a -n -q1 -f8 -m11 143.138.147.177
traceroute to 143.138.147.177 (143.138.147.177): 11 hops max, 52 byte packets
8 [AS3356] 4.69.219.222 325.913 ms
9 *
10 *
11 *
Measurement taken from IPinfo ProbeNet in Campina Grande, BR
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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