147.238.120.0/22

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 147.238.120.0/22

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
147.135.120.230	AS16276 OVH SAS	`1.25ms` from Ashburn, US
68.100.57.182	AS22773 Cox Communications Inc.	`4.93ms` from Ashburn, US
209.55.25.38	AS10397 Momentum Telecom, Inc.	`0.30ms` from Atlanta, US
87.54.9.22	AS3292 TDC Holding A/S	`0.69ms` from Copenhagen, DK
20.250.2.230	AS8075 Microsoft Corporation	`0.18ms` from Kloten, CH
80.92.87.198	AS24611 Datacenter Luxembourg S.A.	`0.54ms` from Luxembourg, LU
50.250.94.198	AS7922 Comcast Cable Communications, LLC	`5.02ms` from Miami, US
96.94.179.118	AS7922 Comcast Cable Communications, LLC	`8.84ms` from Murfreesboro, US
149.2.89.22	AS19313 Datacor, Inc.	`2.25ms` from New York City, US
84.137.251.230	AS3320 Deutsche Telekom AG	`3.50ms` from Nuernberg, DE
54.90.238.230	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
191.13.190.198	AS27699 TELEFÔNICA BRASIL S.A	`5.43ms` from Sao Paulo, BR
44.25.12.86	AS63479 HamWAN	`0.23ms` from Seattle, US
183.186.112.166	AS4837 CHINA UNICOM China169 Backbone	`5.29ms` from Taiyuan, CN
202.211.13.6	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`12.04ms` from Tokyo, JP
92.218.149.198	AS3209 Vodafone GmbH	`8.67ms` from Berlin, DE
35.88.153.166	AS16509 Amazon.com, Inc.	`0.10ms` from Boardman, US
190.145.59.198	AS14080 Telmex Colombia S.A.	`1.00ms` from Bogota, CO
61.188.187.246	AS4134 CHINANET-BACKBONE	`5.62ms` from Chengdu, CN
216.57.136.38	AS46887 Crown Castle Fiber LLC	`5.43ms` from Dallas, US
152.23.253.134	AS36850 University of North Carolina at Chapel Hill	`10.26ms` from Herndon, US
1.223.184.214	AS3786 LG DACOM Corporation	`1.62ms` from Incheon, KR
88.18.251.150	AS3352 TELEFONICA DE ESPANA S.A.U.	`8.48ms` from Madrid, ES
50.248.59.230	AS7922 Comcast Cable Communications, LLC	`5.00ms` from Miami, US
24.228.53.102	AS6128 Cablevision Systems Corp.	`9.36ms` from New York City, US

Traceroute

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

traceroute -a -n -q1 -f3 -m7 147.238.120.56

traceroute to 147.238.120.56 (147.238.120.56): 7 hops max, 52 byte packets

3 [AS3356] 4.69.230.158 121.237 ms

4 [AS3356] 65.56.131.54 129.907 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Budapest, HU

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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