143.81.128.0/17

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 143.81.128.0/17

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
83.84.231.1	AS33915 Vodafone Libertel B.V.	`5.22ms` from Amsterdam, NL
128.220.45.1	AS5723 Johns Hopkins University	`4.32ms` from Ashburn, US
49.229.85.1	AS45458 SBN-ISP/AWN-ISP and SBN-NIX/AWN-NIX	`0.94ms` from Bangkok, TH
223.204.96.1	AS45758 Triple T Broadband Public Company Limited	`10.64ms` from Bangkok, TH
111.198.101.129	AS4808 China Unicom Beijing Province Network	`3.78ms` from Beijing, CN
39.155.248.97	AS56048 China Mobile Communicaitons Corporation	`2.54ms` from Beijing, CN
212.101.250.161	AS31126 SODETEL S.A.L.	`11.03ms` from Beirut, LB
178.222.233.1	AS8400 TELEKOM SRBIJA a.d.	`1.64ms` from Belgrade, RS
40.84.114.241	AS8075 Microsoft Corporation	`0.18ms` from Boydton, US
91.82.205.1	AS12301 Invitech ICT Services Kft.	`4.26ms` from Budapest, HU
190.246.157.1	AS7303 Telecom Argentina S.A.	`5.78ms` from Buenos Aires, AR
41.248.94.241	AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM	`12.15ms` from Casablanca, MA
70.63.231.65	AS11426 Charter Communications Inc	`3.55ms` from Charlotte, US
47.248.238.81	AS33363 Charter Communications, Inc	`7.57ms` from Chicago, US
24.93.176.1	AS10796 Charter Communications Inc	`2.85ms` from Cleveland, US
216.57.230.1	AS7258 Webhero, Inc.	`7.31ms` from Dallas, US
64.90.129.1	AS393474 St. Clair County Regional Educational Service Agency	`1.99ms` from Detroit, US
89.211.49.225	AS8781 Ooredoo Q.S.C.	`1.33ms` from Doha, QA
36.248.1.129	AS4837 CHINA UNICOM China169 Backbone	`6.40ms` from Fuzhou, CN
87.153.71.113	AS3320 Deutsche Telekom AG	`4.20ms` from Hamburg, DE
81.197.109.97	AS719 Elisa Oyj	`1.55ms` from Helsinki, FI
45.127.216.1	AS132369 XIANGAO INTERNATIONAL TELECOMMUNICATION LIMITED	`1.43ms` from Hong Kong, HK
222.187.23.17	AS4134 CHINANET-BACKBONE	`8.36ms` from Huai'an, CN
106.253.185.225	AS3786 LG DACOM Corporation	`2.02ms` from Incheon, KR
211.117.50.1	AS9318 SK Broadband Co Ltd	`1.46ms` from Incheon, KR

Traceroute

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

traceroute -a -n -q1 -m5 143.81.251.215

traceroute to 143.81.251.215 (143.81.251.215): 5 hops max, 52 byte packets

1 [AS51248] 193.161.86.1 3.555 ms

2 [AS51248] 185.8.57.10 0.173 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Veseli nad Moravou, CZ

On January 30th 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.

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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