147.238.172.0/22

AS1540 · Headquarters, USAISC

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Summary

Country	United States
Domain	mail.mil
ASN	AS1540
Parent Range	147.238.0.0/16
Registry	ARIN
ID	FTKNOX-NET2

WHOIS Details

NetHandle:      NET-147-238-0-0-2
OrgID:          HEADQU-3
Parent:         NET-147-238-0-0-1
NetName:        FTKNOX-NET2
NetRange:       147.238.0.0 - 147.238.255.255
NetType:        reallocation
RegDate:        2025-08-22
Updated:        2025-08-22
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 147.238.172.0/22

Range	ASN	Company	Num of IPs
147.238.0.0/16	AS1540	Headquarters, USAISC	65,536
147.238.0.0/16	AS1540	Headquarters, USAISC	65,536
147.238.0.0/16	AS367	Headquarters, USAISC	65,536
147.238.0.0/16	AS367	Headquarters, USAISC	65,536

Nearby Ranges

BGP prefixes that overlap with 147.238.0.0/16

Range	ASN	Company	Num of IPs
147.238.0.0/16	AS1540	Headquarters, USAISC	65,536
147.238.0.0/16	AS1540	Headquarters, USAISC	65,536
147.238.0.0/16	AS367	Headquarters, USAISC	65,536
147.238.0.0/16	AS367	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

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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
181.102.240.166	AS7303 Telecom Argentina S.A.	`12.81ms` from Buenos Aires, AR
76.161.88.134	AS7029 Windstream Communications LLC	`8.07ms` from Dallas, US
63.32.236.198	AS16509 Amazon.com, Inc.	`0.30ms` from Dublin, IE
43.136.114.6	AS45090 Shenzhen Tencent Computer Systems Company Limited	`2.22ms` from Guangzhou, CN
104.166.11.118	AS7352 WECOM LLC	`7.46ms` from Los Angeles, US
5.51.171.182	AS5410 Bouygues Telecom SA	`7.08ms` from Lyon, FR
212.81.172.134	AS3262 SAREnet, S.A.	`3.29ms` from Madrid, ES
178.34.76.246	AS12389 PJSC Rostelecom	`8.40ms` from Moscow, RU
79.224.243.38	AS3320 Deutsche Telekom AG	`6.12ms` from Nuernberg, DE
50.227.214.118	AS7922 Comcast Cable Communications, LLC	`3.79ms` from Secaucus, US
221.166.190.22	AS4766 Korea Telecom	`4.83ms` from Seoul, KR
54.95.65.150	AS16509 Amazon.com, Inc.	`0.16ms` from Tokyo, JP
66.207.117.214	AS393994 Brantford Hydro	`2.09ms` from Toronto, CA
194.68.23.134	AS57630 84 Grams AB	`3.93ms` from Umea, SE
104.176.29.150	AS7018 AT&T Enterprises, LLC	`2.47ms` from Atlanta, US
12.89.168.70	AS7018 AT&T Enterprises, LLC	`7.21ms` from Columbus, US
187.18.91.38	AS22689 SERCOMTEL S/A TELECOMUNICACOES	`8.99ms` from Curitiba, BR
187.216.67.54	AS8151 UNINET	`14.99ms` from Dallas, US
118.185.143.118	AS55410 Vodafone Idea Ltd	`0.91ms` from Delhi, IN
49.83.75.102	AS4134 CHINANET-BACKBONE	`6.68ms` from Huai'an, CN
46.203.25.230	AS3356 Level 3 Parent, LLC	`0.14ms` from Madrid, ES
89.32.89.214	AS56595 Fluency Communications Ltd	`0.60ms` from Manchester, GB
109.165.48.102	AS12389 PJSC Rostelecom	`17.05ms` from Moscow, RU
125.17.141.166	AS9498 BHARTI Airtel Ltd.	`0.35ms` from Mumbai, IN
112.87.127.38	AS4837 CHINA UNICOM China169 Backbone	`4.28ms` from Nanjing, CN

Traceroute

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

traceroute -a -n -q1 -m4 147.238.172.160

traceroute to 147.238.172.160 (147.238.172.160): 4 hops max, 52 byte packets

1 [AS174] 38.103.244.2 81.12 ms

2 *

3 *

4 *

Measurement taken from

IPinfo ProbeNet in Providence, US

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.

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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