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:        disa.columbus.ns.mbx.arin-registrations@mail.mil
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
143.128.0.0/16 AS2018 University of Kwazulu-Natal 65,536
143.199.0.0/16 AS21680 Empower Retirement, LLC 65,536
143.228.0.0/16 AS1999 U.S. House of Representatives 65,536
143.227.0.0/16 AS16509 Amazon.com, Inc. 65,536
143.231.0.0/16 AS1999 U.S. House of Representatives 65,536
143.130.0.0/16 AS211817 WSR; Wirtschafts- und Sozialwissenschaftliches Rechenzentrum 65,536
143.168.0.0/16 AS16509 Amazon.com, Inc. 65,536
143.248.0.0/16 AS1781 Korea Advanced Institute of Science and Technology 65,536
143.171.0.0/16 AS16509 Amazon.com, Inc. 65,536
143.221.0.0/16 AS16509 Amazon.com, Inc. 65,536
143.45.0.0/16 AS1649 Headquarters, USAISC 65,536
143.253.0.0/16 AS16509 Amazon.com, Inc. 65,536
143.213.0.0/16 AS1602 Headquarters, USAISC 65,536
143.161.0.0/16 AS206228 Andritz AG 65,536
143.238.0.0/16 AS1221 Telstra Limited 65,536
143.59.0.0/16 AS12083 WideOpenWest Finance LLC 65,536
143.205.0.0/16 AS1111 Universitaet Klagenfurt 65,536
143.135.0.0/16 AS16509 Amazon.com, Inc. 65,536
143.76.0.0/16 AS1501 Headquarters, USAISC 65,536
143.84.0.0/16 AS1540 Headquarters, USAISC 65,536
143.191.0.0/16 AS16509 Amazon.com, Inc. 65,536
143.206.0.0/16 AS16509 Amazon.com, Inc. 65,536
143.69.0.0/16 AS1590 Headquarters, USAISC 65,536
143.74.0.0/16 AS1600 Headquarters, USAISC 65,536
143.239.0.0/16 AS1213 Campus Network 65,536
143.84.0.0/16 AS1590 Headquarters, USAISC 65,536
143.50.0.0/16 AS1114 Universitaet Graz 65,536
143.212.0.0/16 AS1602 Headquarters, USAISC 65,536
143.46.0.0/16 AS1637 Headquarters, USAISC 65,536
143.214.0.0/16 AS1602 Headquarters, USAISC 65,536
143.101.0.0/16 AS13636 NEC Corporation of America 65,536
143.102.0.0/16 AS13636 NEC Corporation of America 65,536
143.164.0.0/16 AS12331 Audi AG, Ingolstadt 65,536
143.216.0.0/16 AS136572 The Office of the Chief Information Officer (OCIO) 65,536
143.108.0.0/16 AS1251 FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO SÃO PAULO 65,536
143.225.0.0/16 AS137 UNI-Napoli Federico II 65,536
143.176.0.0/16 AS13127 Tele2 Nederland B.V. 65,536
143.170.0.0/16 AS16504 Granite Telecommunications LLC 65,536
143.121.0.0/16 AS1103 Universitair Medisch Centrum Utrecht 65,536
143.48.0.0/16 AS13748 Cold Spring Harbor Laboratory 65,536
143.73.0.0/16 AS1501 Headquarters, USAISC 65,536
143.69.0.0/16 AS1493 Headquarters, USAISC 65,536
143.79.0.0/16 AS1540 Headquarters, USAISC 65,536
143.76.0.0/16 AS1502 Headquarters, USAISC 65,536
143.74.0.0/16 AS1540 Headquarters, USAISC 65,536
143.69.0.0/16 AS1540 Headquarters, USAISC 65,536
143.66.0.0/16 AS13536 Corning Community College 65,536
143.111.0.0/16 AS11773 The University Of Texas M.D. Anderson Cancer Center 65,536
143.67.0.0/16 AS13536 Jamestown Community College 65,536
143.94.0.0/16 AS2497 FUJIFILM Business Innovation Corp. Information & Communication Systems 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
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
188.171.10.47 AS12946 R Cable y Telecable Telecomunicaciones, S.A.U. 8.04ms from A Coruna, ES
207.135.214.15 AS13786 Seabras 1 USA, LLC 0.19ms from Ashburn, US
179.60.7.255 AS11815 Cooperativa Telefonica de V.G.G. Ltda. 5.82ms from Buenos Aires, AR
181.26.139.255 AS22927 Telefonica de Argentina 2.29ms from Buenos Aires, AR
170.210.221.15 AS4270 Red de Interconexion Universitaria 16.18ms from Buenos Aires, AR
65.190.175.191 AS11426 Charter Communications Inc 11.75ms from Charlotte, US
117.255.234.15 AS9829 National Internet Backbone 4.79ms from Delhi, IN
210.32.13.31 AS4538 China Education and Research Network Center 15.20ms from Hangzhou, CN
149.109.106.127 AS25019 Saudi Telecom Company JSC 5.91ms from Jeddah, SA
91.142.168.95 AS28994 Sitel Ltd 0.54ms from Kyiv, UA
79.7.27.143 AS3269 Telecom Italia S.p.A. 4.46ms from Milan, IT
67.86.180.223 AS6128 Cablevision Systems Corp. 8.14ms from New York City, US
51.44.211.255 AS16509 Amazon.com, Inc. 0.14ms from Paris, FR
81.163.74.63 AS57223 SIA NETVISION 2.24ms from Riga, LV
59.28.254.95 AS4766 Korea Telecom 8.32ms from Seoul, KR
121.177.128.95 AS4766 Korea Telecom 7.32ms from Seoul, KR
88.247.208.223 AS9121 Turk Telekomunikasyon Anonim Sirketi 7.42ms from Bursa, TR
185.197.40.79 AS202661 NetPlans GmbH 1.91ms from Frankfurt am Main, DE
79.248.50.79 AS3320 Deutsche Telekom AG 10.04ms from Frankfurt am Main, DE
112.197.66.191 AS45543 SaiGon Tourist cable Televition Company 1.21ms from Ho Chi Minh City, VN
110.68.139.79 AS4766 Korea Telecom 5.25ms from Seoul, KR
1.238.121.111 AS9318 SK Broadband Co Ltd 2.29ms from Seoul, KR
161.151.227.47 AS6253 The Prudential Insurance Company of America 0.72ms from Amsterdam, NL
3.32.144.207 AS8987 Amazon Data Services Ireland Ltd 0.32ms from Boardman, US
152.202.237.95 AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 19.00ms from Bogota, CO

Traceroute

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

$
traceroute -a -n -q1 -m5 143.138.5.143
traceroute to 143.138.5.143 (143.138.5.143): 5 hops max, 52 byte packets
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Dubai, AE
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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