21.23.13.0/24

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:        disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
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 21.23.13.0/24

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
27.7.111.216	AS17488 Hathway IP Over Cable Internet	`1.19ms` from Bengaluru, IN
197.153.92.104	AS36925 MEDITELECOM	`4.16ms` from Casablanca, MA
74.135.198.184	AS10796 Charter Communications Inc	`9.96ms` from Chicago, US
81.131.126.248	AS2856 British Telecommunications PLC	`5.88ms` from London, GB
107.163.108.88	AS40065 CNSERVERS LLC	`0.26ms` from Los Angeles, US
90.247.177.72	AS5378 Vodafone Limited	`9.49ms` from Manchester, GB
128.0.228.200	AS6866 Cyprus Telecommunications Authority	`2.63ms` from Nicosia, CY
119.231.96.120	AS17511 OPTAGE Inc.	`1.46ms` from Osaka, JP
222.229.205.40	AS2519 ARTERIA Networks Corporation	`7.26ms` from Osaka, JP
185.149.9.88	AS16347 ADISTA SAS	`8.43ms` from Paris, FR
50.54.204.248	AS20055 Wholesail networks LLC	`5.93ms` from Portland, US
73.151.193.104	AS7922 Comcast Cable Communications, LLC	`7.09ms` from San Jose, US
182.231.78.120	AS17858 LG POWERCOMM	`1.84ms` from Seoul, KR
125.140.20.56	AS4766 Korea Telecom	`4.27ms` from Seoul, KR
59.0.181.136	AS4766 Korea Telecom	`5.54ms` from Seoul, KR
211.210.105.200	AS9318 SK Broadband Co Ltd	`1.24ms` from Seoul, KR
59.74.182.216	AS4538 China Education and Research Network Center	`18.26ms` from Shijiazhuang, CN
51.161.128.136	AS16276 OVH SAS	`0.14ms` from Sydney, AU
180.27.93.56	AS4713 NTT DOCOMO BUSINESS,Inc.	`7.36ms` from Tokyo, JP
66.252.159.184	AS26788 Rogers Communications Canada Inc.	`1.59ms` from Toronto, CA
52.104.161.24	AS8075 Microsoft Corporation	`0.40ms` from Zuerich, CH
147.102.182.200	AS3323 National Technical University of Athens	`2.17ms` from Athens, GR
38.172.218.8	AS273905 AMERICANA DE TECNOLOGIA Y COMUNICACIONES SAS	`6.65ms` from Bogota, CO
213.22.91.120	AS2860 NOS COMUNICACOES, S.A.	`6.82ms` from Braga, PT
68.45.48.120	AS7922 Comcast Cable Communications, LLC	`11.26ms` from Chicago, US

Traceroute

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

traceroute -a -n -q1 -f2 -m6 21.23.13.85

traceroute to 21.23.13.85 (21.23.13.85): 6 hops max, 52 byte packets

2 [AS29134] 217.31.48.15 0.328 ms

3 [AS35236] 109.205.72.225 0.606 ms

4 *

5 *

6 *

Measurement taken from

IPinfo ProbeNet in Prague, CZ

On November 22nd 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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