143.81.0.0/17

AS721 · United States Department of Defense (DoD)

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Summary

Country	United States
Domain	mail.mil
ASN	AS721
Parent Range	143.81.0.0/16
Registry	ARIN
ID	KUWAIT-NET1

WHOIS Details

NetHandle:      NET-143-81-0-0-2
OrgID:          HEADQU-3
Parent:         NET-143-81-0-0-1
NetName:        KUWAIT-NET1
NetRange:       143.81.0.0 - 143.81.255.255
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 contain 143.81.0.0/17

Range	ASN	Company	Num of IPs
143.81.0.0/16	AS6034	Headquarters, USAISC	65,536
143.81.0.0/16	AS721	Headquarters, USAISC	65,536

Nearby Ranges

BGP prefixes that overlap with 143.81.0.0/16

Range	ASN	Company	Num of IPs
143.81.0.0/16	AS6034	Headquarters, USAISC	65,536
143.81.0.0/16	AS721	Headquarters, USAISC	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
143.176.16.1	AS13127 Odido Netherlands B.V.	`8.05ms` from Amsterdam, NL
84.28.153.1	AS33915 Vodafone Libertel B.V.	`5.17ms` from Amsterdam, NL
31.151.198.1	AS33915 Vodafone Libertel B.V.	`6.14ms` from Amsterdam, NL
194.30.251.81	AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA	`1.16ms` from Athens, GR
97.86.55.193	AS20115 Charter Communications LLC	`13.96ms` from Atlanta, US
12.192.159.113	AS7018 AT&T Enterprises, LLC	`15.71ms` from Atlanta, US
5.57.73.1	AS197423 Jotel d.o.o.	`3.31ms` from Belgrade, RS
80.200.179.17	AS5432 Proximus NV	`0.99ms` from Brussels, BE
190.55.214.17	AS27747 Telecentro S.A.	`6.27ms` from Buenos Aires, AR
179.43.41.113	AS270853 STAYBOX SERVICOS DE HOSPEDAGEM NA INTERNET LTDA	`2.91ms` from Chapeco, BR
118.120.252.1	AS4134 CHINANET-BACKBONE	`5.83ms` from Chengdu, CN
171.215.24.1	AS4134 CHINANET-BACKBONE	`9.13ms` from Chengdu, CN
61.157.82.1	AS4134 CHINANET-BACKBONE	`2.75ms` from Chengdu, CN
149.75.156.1	AS6079 RCN	`1.38ms` from Chicago, US
71.7.36.17	AS7029 Windstream Communications LLC	`10.89ms` from Chicago, US
74.139.182.241	AS10796 Charter Communications Inc	`17.32ms` from Columbus, US
216.255.39.1	AS7106 Com Net, Inc.	`2.93ms` from Columbus, US
217.75.114.65	AS12552 GlobalConnect AB	`2.84ms` from Copenhagen, DK
213.66.31.1	AS3301 Telia Company AB	`1.85ms` from Copenhagen, DK
190.246.29.1	AS7303 Telecom Argentina S.A.	`4.53ms` from Cordoba, AR
179.181.65.1	AS18881 TELEFÔNICA BRASIL S.A	`6.13ms` from Curitiba, BR
47.211.12.1	AS19108 Optimum	`12.16ms` from Dallas, US
12.222.174.193	AS7018 AT&T Enterprises, LLC	`1.83ms` from Dallas, US
103.70.154.129	AS135763 GAYATRI COMMUNICATIONS	`1.67ms` from Delhi, IN
72.19.139.1	AS17306 JAB Wireless, INC.	`2.67ms` from Denver, US

Traceroute

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

traceroute -a -n -q1 -m4 143.81.120.253

traceroute to 143.81.120.253 (143.81.120.253): 4 hops max, 52 byte packets

1 [AS202105] 87.237.225.3 0.289 ms

2 *

3 *

4 *

Measurement taken from

IPinfo ProbeNet in Jeddah, SA

On January 18th 2026

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.

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