143.81.56.0/24

AS6034 · United States Department of Defense (DoD)

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Summary

Country	United States
Domain	mail.mil
ASN	AS6034
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:        disa.columbus.ns.mbx.arin-registrations@mail.mil
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 143.81.56.0/24

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

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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
39.106.103.56	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.41ms` from Beijing, CN
183.172.163.216	AS4538 China Education and Research Network Center	`5.06ms` from Beijing, CN
197.49.7.56	AS8452 TE-AS	`5.86ms` from Cairo, EG
24.243.63.104	AS11427 Charter Communications Inc	`8.23ms` from Dallas, US
63.179.113.184	AS16509 Amazon.com, Inc.	`0.15ms` from Frankfurt am Main, DE
87.143.215.184	AS3320 Deutsche Telekom AG	`5.59ms` from Frankfurt am Main, DE
98.60.20.216	AS7922 Comcast Cable Communications, LLC	`12.68ms` from Greenwood Village, US
109.49.65.216	AS2860 NOS COMUNICACOES, S.A.	`5.22ms` from Lisbon, PT
160.242.1.136	AS33763 Paratus Telecommunications Limited	`0.74ms` from Lisbon, PT
109.155.156.104	AS2856 British Telecommunications PLC	`1.98ms` from London, GB
93.192.119.200	AS3320 Deutsche Telekom AG	`6.71ms` from Nuernberg, DE
87.184.149.104	AS3320 Deutsche Telekom AG	`2.66ms` from Nuernberg, DE
73.182.1.88	AS7922 Comcast Cable Communications, LLC	`13.92ms` from Orlando, US
45.157.198.104	AS204145 HTSENSE SASU	`6.86ms` from Paris, FR
174.74.193.8	AS22773 Cox Communications Inc.	`6.14ms` from Phoenix, US
173.95.157.184	AS11426 Charter Communications Inc	`13.35ms` from Reston, US
44.218.118.104	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
206.12.6.200	AS11105 Simon Fraser University	`3.42ms` from Seattle, US
106.14.86.248	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`4.26ms` from Shanghai, CN
180.76.97.216	AS38365 Beijing Baidu Netcom Science and Technology Co., Ltd.	`3.71ms` from Tianjin, CN
37.151.6.200	AS9198 JSC Kazakhtelecom	`2.40ms` from Almaty, KZ
77.163.104.40	AS1136 KPN B.V.	`1.17ms` from Amsterdam, NL
76.136.91.56	AS7922 Comcast Cable Communications, LLC	`9.93ms` from Chicago, US
76.182.229.72	AS11427 Charter Communications Inc	`5.48ms` from Dallas, US
176.70.145.8	AS1257 Tele2 Sverige AB	`0.45ms` from Goeteborg, SE

Traceroute

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

traceroute -a -n -q1 -f3 -m8 143.81.56.203

traceroute to 143.81.56.203 (143.81.56.203): 8 hops max, 52 byte packets

3 [AS3216] 213.33.240.245 5.33 ms

4 *

5 [AS3356] 212.133.1.205 38.451 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Saint Petersburg, RU

On January 19th 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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