21.23.7.0/24

AS749 · United States Department of Defense (DoD)

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Summary

Country	United States
Domain	mail.mil
ASN	AS749
Parent Range	21.0.0.0/8
Registry	ARIN
ID	DNIC-SNET-021

WHOIS Details

NetHandle:      NET-21-0-0-0-2
OrgID:          DNIC
Parent:         NET-21-0-0-0-1
NetName:        DNIC-SNET-021
NetRange:       21.0.0.0 - 21.255.255.255
NetType:        reallocation
RegDate:        2025-09-05
Updated:        2025-09-05
Source:         ARIN


OrgID:          DNIC
OrgName:        DoD Network Information Center
CanAllocate:    
Street:         3990 E. Broad Street
City:           Columbus
State/Prov:     OH
Country:        US
PostalCode:     43218
RegDate:        1970-01-01
Updated:        2025-03-13
OrgAdminHandle: MIL-HSTMST-ARIN
OrgTechHandle:  MIL-HSTMST-ARIN
OrgTechHandle:  REGIS10-ARIN
OrgAbuseHandle: REGIS10-ARIN
Source:         ARIN


POCHandle:      MIL-HSTMST-ARIN
IsRole:         Y
LastName:       Network DoD
FirstName:      
Street:         DISA-Columbus
Street:         300 North James Road
City:           Whitehall
State/Prov:     OH
Country:        US
PostalCode:     43213
RegDate:        1993-05-26
Updated:        2025-02-12
OfficePhone:    +1-844-347-2457
Mailbox:        [email protected]
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 21.23.7.0/24

Range	ASN	Company	Num of IPs
21.0.0.0/8	AS749	DoD Network Information Center	16,777,216

Nearby Ranges

BGP prefixes that overlap with 21.23.0.0/16

Range	ASN	Company	Num of IPs
21.0.0.0/8	AS749	DoD Network Information Center	16,777,216

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
52.247.109.152	AS8075 Microsoft Corporation	`0.27ms` from Boydton, US
113.6.242.104	AS4837 CHINA UNICOM China169 Backbone	`8.26ms` from Changchun, CN
95.18.21.136	AS12479 Orange Espagne SA	`1.57ms` from Madrid, ES
90.107.151.232	AS3215 Orange S.A.	`7.16ms` from Paris, FR
181.191.28.40	AS265783 COOP. LTDA. DE ELCTRICIDAD, OTROS SERVICIOS PÚBLICOS DE TACURAL	`4.87ms` from Rosario, AR
112.151.103.184	AS17858 LG POWERCOMM	`1.72ms` from Seoul, KR
61.84.138.152	AS4766 Korea Telecom	`1.99ms` from Seoul, KR
126.8.145.56	AS17676 SoftBank Corp.	`4.75ms` from Tokyo, JP
185.103.60.152	AS62240 Clouvider	`0.18ms` from Amsterdam, NL
68.184.161.152	AS20115 Charter Communications LLC	`17.13ms` from Atlanta, US
40.138.70.152	AS7029 Windstream Communications LLC	`9.59ms` from Chicago, US
174.130.21.40	AS7029 Windstream Communications LLC	`6.40ms` from Dallas, US
14.227.89.200	AS45899 VNPT Corp	`2.88ms` from Ho Chi Minh City, VN
81.148.65.216	AS2856 British Telecommunications PLC	`4.45ms` from London, GB
172.187.251.40	AS8075 Microsoft Corporation	`0.20ms` from London, GB
5.137.24.24	AS12389 PJSC Rostelecom	`1.03ms` from Novosibirsk, RU
54.147.106.88	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
84.212.3.136	AS25400 Telia Norge AS	`15.45ms` from Sandefjord, NO
188.2.167.248	AS31042 Serbia BroadBand-Srpske Kablovske mreze d.o.o.	`7.70ms` from Belgrade, RS
87.187.147.24	AS3320 Deutsche Telekom AG	`3.07ms` from Berlin, DE
72.70.53.40	AS701 Verizon Business	`2.72ms` from Boston, US
222.161.185.72	AS4837 CHINA UNICOM China169 Backbone	`9.01ms` from Changchun, CN
90.202.50.168	AS5607 Sky UK Limited	`6.02ms` from Erith, GB
172.71.25.72	AS13335 Cloudflare, Inc.	`12.62ms` from Fortaleza, BR
84.159.55.232	AS3320 Deutsche Telekom AG	`3.64ms` from Frankfurt am Main, DE

Traceroute

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

traceroute -a -n -q1 -m5 21.23.7.26

traceroute to 21.23.7.26 (21.23.7.26): 5 hops max, 52 byte packets

1 [AS7195] 200.25.32.26 37.364 ms

2 [AS7195] 200.25.51.202 3.147 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Mexico City, MX

On December 6th 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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