204.208.104.0/21

AS5972 · DoD Network Information Center

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Summary

Country	United States
Domain	mail.mil
ASN	AS5972
Parent Range	204.208.0.0/16
Registry	ARIN
ID	AMEDD-CHCS2

WHOIS Details

NetHandle:      NET-204-208-0-0-2
OrgID:          HEADQU-3
Parent:         NET-204-208-0-0-1
NetName:        AMEDD-CHCS2
NetRange:       204.208.0.0 - 204.208.255.255
NetType:        reallocation
RegDate:        2025-08-25
Updated:        2025-08-25
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 204.208.104.0/21

Range	ASN	Company	Num of IPs
204.208.0.0/16	AS5972	Headquarters, USAISC	65,536
204.208.0.0/16	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
122.57.94.229	AS4771 Spark New Zealand Trading Ltd.	`0.69ms` from Auckland, NZ
186.86.241.229	AS14080 Telmex Colombia S.A.	`1.10ms` from Bogota, CO
20.110.27.5	AS8075 Microsoft Corporation	`0.22ms` from Boydton, US
173.94.83.197	AS11426 Charter Communications Inc	`6.52ms` from Charlotte, US
171.217.19.85	AS4134 CHINANET-BACKBONE	`1.97ms` from Chengdu, CN
76.200.213.53	AS7018 AT&T Enterprises, LLC	`6.50ms` from Dallas, US
39.152.106.165	AS56044 China Mobile communications corporation	`9.42ms` from Liaoyang, CN
92.236.155.149	AS5089 Virgin Media Limited	`10.70ms` from London, GB
187.155.205.245	AS8151 UNINET	`12.48ms` from Miami, US
65.128.127.37	AS209 CenturyLink Communications, LLC	`1.38ms` from Minneapolis, US
149.20.212.21	AS53347 Premier Communications	`10.49ms` from Minneapolis, US
134.41.24.133	AS855 Bell Canada	`17.36ms` from New York City, US
178.187.80.37	AS12389 PJSC Rostelecom	`5.89ms` from Novosibirsk, RU
72.86.134.245	AS701 Verizon Business	`10.84ms` from Philadelphia, US
216.197.120.229	AS14992 NewtekOne, Inc.	`1.91ms` from Phoenix, US
189.7.146.245	AS28573 Claro NXT Telecomunicacoes Ltda	`7.56ms` from Porto Alegre, BR
40.83.164.85	AS8075 Microsoft Corporation	`0.56ms` from San Jose, US
121.134.98.149	AS4766 Korea Telecom	`1.28ms` from Seoul, KR
1.252.109.5	AS9318 SK Broadband Co Ltd	`6.73ms` from Seoul, KR
18.138.181.5	AS16509 Amazon.com, Inc.	`0.17ms` from Singapore, SG
171.43.71.37	AS4134 CHINANET-BACKBONE	`7.61ms` from Wuhan, CN
5.48.189.5	AS5410 Bouygues Telecom SA	`8.23ms` from Aubervilliers, FR
172.193.41.101	AS8075 Microsoft Corporation	`0.31ms` from Boydton, US
12.245.67.133	AS7018 AT&T Enterprises, LLC	`0.96ms` from Durham, US
220.191.176.245	AS4809 China Telecom Next Generation Carrier Network	`7.26ms` from Hangzhou, CN

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 204.208.105.164

traceroute to 204.208.105.164 (204.208.105.164): 7 hops max, 52 byte packets

3 [AS3356] 4.69.206.154 111.214 ms

4 [AS3356] 4.42.138.46 121.78 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Atlanta, US

On September 4th 2025

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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