AS325 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD), US

AS Number

AS325

AS Name

DNIC-ASBLK-00306-00371

Org Name

United States Department of Defense (DoD)

Country / Region

United States

Registry

arin

RegDate

2007-01-12

Updated

2026-08-12

AS325 Looking Glass

IPv4Prefixes

115

IPv6Prefixes

IPv4 NUMs

131,072

IPv6 NUMs(/64)

33,554,432

IPv4 Ranges
IPv6 Ranges

CIDR	Description	IP Num
55.43.0.0/16	Headquarters, USAISC	65536
55.43.7.0/24	Headquarters, USAISC	256
55.43.8.0/24	Headquarters, USAISC	256
55.43.103.0/24	Headquarters, USAISC	256
55.43.104.0/24	Headquarters, USAISC	256
55.43.105.0/24	Headquarters, USAISC	256
55.43.106.0/24	Headquarters, USAISC	256
55.43.107.0/24	Headquarters, USAISC	256
55.43.108.0/24	Headquarters, USAISC	256
55.43.109.0/24	Headquarters, USAISC	256
55.43.110.0/24	Headquarters, USAISC	256
55.43.111.0/24	Headquarters, USAISC	256
55.43.112.0/24	Headquarters, USAISC	256
55.43.113.0/24	Headquarters, USAISC	256
55.43.114.0/24	Headquarters, USAISC	256
55.43.115.0/24	Headquarters, USAISC	256
55.43.116.0/24	Headquarters, USAISC	256
55.43.117.0/24	Headquarters, USAISC	256
55.43.118.0/24	Headquarters, USAISC	256
55.43.119.0/24	Headquarters, USAISC	256
55.43.120.0/24	Headquarters, USAISC	256
55.43.121.0/24	Headquarters, USAISC	256
55.43.122.0/24	Headquarters, USAISC	256
55.43.123.0/24	Headquarters, USAISC	256
55.43.124.0/24	Headquarters, USAISC	256
55.43.125.0/24	Headquarters, USAISC	256
55.43.126.0/24	Headquarters, USAISC	256
55.43.127.0/24	Headquarters, USAISC	256
55.43.128.0/24	Headquarters, USAISC	256
55.43.129.0/24	Headquarters, USAISC	256
55.43.130.0/24	Headquarters, USAISC	256
55.43.131.0/24	Headquarters, USAISC	256
55.43.132.0/24	Headquarters, USAISC	256
55.43.133.0/24	Headquarters, USAISC	256
55.43.134.0/24	Headquarters, USAISC	256
55.43.135.0/24	Headquarters, USAISC	256
55.43.136.0/24	Headquarters, USAISC	256
55.43.137.0/24	Headquarters, USAISC	256
55.43.138.0/24	Headquarters, USAISC	256
55.43.139.0/24	Headquarters, USAISC	256
55.43.140.0/24	Headquarters, USAISC	256
55.43.141.0/24	Headquarters, USAISC	256
55.43.142.0/24	Headquarters, USAISC	256
55.43.143.0/24	Headquarters, USAISC	256
55.43.144.0/24	Headquarters, USAISC	256
55.43.145.0/24	Headquarters, USAISC	256
55.43.146.0/24	Headquarters, USAISC	256
55.43.147.0/24	Headquarters, USAISC	256
55.43.148.0/24	Headquarters, USAISC	256
55.43.149.0/24	Headquarters, USAISC	256
55.43.150.0/24	Headquarters, USAISC	256
55.43.151.0/24	Headquarters, USAISC	256
55.43.152.0/24	Headquarters, USAISC	256
55.43.153.0/24	Headquarters, USAISC	256
55.43.154.0/24	Headquarters, USAISC	256
55.43.155.0/24	Headquarters, USAISC	256
55.43.156.0/24	Headquarters, USAISC	256
55.43.157.0/24	Headquarters, USAISC	256
55.43.158.0/24	Headquarters, USAISC	256
55.43.159.0/24	Headquarters, USAISC	256
55.43.160.0/24	Headquarters, USAISC	256
55.43.161.0/24	Headquarters, USAISC	256
55.43.162.0/24	Headquarters, USAISC	256
55.43.163.0/24	Headquarters, USAISC	256
55.43.164.0/24	Headquarters, USAISC	256
55.43.165.0/24	Headquarters, USAISC	256
55.43.166.0/24	Headquarters, USAISC	256
55.43.167.0/24	Headquarters, USAISC	256
55.43.168.0/24	Headquarters, USAISC	256
55.43.169.0/24	Headquarters, USAISC	256
55.43.170.0/24	Headquarters, USAISC	256
55.43.171.0/24	Headquarters, USAISC	256
55.43.172.0/24	Headquarters, USAISC	256
55.43.173.0/24	Headquarters, USAISC	256
55.43.174.0/24	Headquarters, USAISC	256
55.43.175.0/24	Headquarters, USAISC	256
55.43.176.0/24	Headquarters, USAISC	256
55.43.177.0/24	Headquarters, USAISC	256
55.43.178.0/24	Headquarters, USAISC	256
55.43.179.0/24	Headquarters, USAISC	256
55.43.180.0/24	Headquarters, USAISC	256
55.43.181.0/24	Headquarters, USAISC	256
55.191.0.0/16	Headquarters, USAISC	65536
55.191.7.0/24	Headquarters, USAISC	256
55.191.104.0/24	Headquarters, USAISC	256
55.191.106.0/24	Headquarters, USAISC	256
55.191.109.0/24	Headquarters, USAISC	256
55.191.110.0/24	Headquarters, USAISC	256
55.191.112.0/24	Headquarters, USAISC	256
55.191.127.0/24	Headquarters, USAISC	256
55.191.138.0/24	Headquarters, USAISC	256
55.191.180.0/24	Headquarters, USAISC	256
55.191.181.0/24	Headquarters, USAISC	256
55.191.182.0/24	Headquarters, USAISC	256
55.191.183.0/24	Headquarters, USAISC	256
55.191.187.0/24	Headquarters, USAISC	256
55.191.189.0/24	Headquarters, USAISC	256
55.191.193.0/24	Headquarters, USAISC	256
55.191.197.0/24	Headquarters, USAISC	256
55.191.198.0/24	Headquarters, USAISC	256
55.191.199.0/24	Headquarters, USAISC	256
55.191.200.0/24	Headquarters, USAISC	256
55.191.201.0/24	Headquarters, USAISC	256
55.191.203.0/24	Headquarters, USAISC	256
55.191.205.0/24	Headquarters, USAISC	256
55.191.207.0/24	Headquarters, USAISC	256
55.191.211.0/24	Headquarters, USAISC	256
55.191.213.0/24	Headquarters, USAISC	256
55.191.215.0/24	Headquarters, USAISC	256
55.191.217.0/24	Headquarters, USAISC	256
55.191.221.0/24	Headquarters, USAISC	256
55.191.222.0/24	Headquarters, USAISC	256
55.191.223.0/24	Headquarters, USAISC	256
55.191.229.0/24	Headquarters, USAISC	256
55.191.232.0/24	Headquarters, USAISC	256

CIDR	Description	IP NUMs(prefix /64)
2608:12b:6400::/40	United States Department of Defense (DoD)	16777216
2608:12b:6401::/48	United States Department of Defense (DoD)	65536
2608:12b:6402::/48	United States Department of Defense (DoD)	65536
2608:12b:6403::/48	United States Department of Defense (DoD)	65536
2608:12b:6410::/44	United States Department of Defense (DoD)	1048576
2608:14a:4900::/40	United States Department of Defense (DoD)	16777216

AS	Description	Country / Region	IPv4 NUMs	IPv6 NUMs	IPv4	IPv6
AS306	DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD), US		4,558,336	54,198,272	IPv4	IPv6

ASNumber:       325
ASName:         DNIC-ASBLK-00306-00371
ASHandle:       AS306
RegDate:        1989-06-30
Updated:        2025-09-12
Ref:            https://rdap.arin.net/registry/autnum/325

OrgID:          USDDD
OrgName:        United States Department of Defense (DoD)
CanAllocate:    
Street:         3990 E. Broad Street
City:           Columbus
State/Prov:     OH
Country:        US
PostalCode:     43218
RegDate:        2007-01-12
Updated:        2026-08-12
OrgAdminHandle  REGIS10-ARIN
OrgTechHandle   MIL-HSTMST-ARIN
OrgTechHandle   REGIS10-ARIN
OrgAbuseHandle  MIL-HSTMST-ARIN
OrgNOCHandle    MIL-HSTMST-ARIN
Source:         ARIN

OrgAbuseHandleHandle:  MIL-HSTMST-ARIN
OrgAbuseHandleName:    Network DoD, 
OrgAbuseHandlePhone:   +1-844-347-2457
OrgAbuseHandleEmail:   [email protected]
OrgAbuseHandleRef:     https://rdap.arin.net/registry/entity/MIL-HSTMST-ARIN

OrgNOCHandleHandle:  MIL-HSTMST-ARIN
OrgNOCHandleName:    Network DoD, 
OrgNOCHandlePhone:   +1-844-347-2457
OrgNOCHandleEmail:   [email protected]
OrgNOCHandleRef:     https://rdap.arin.net/registry/entity/MIL-HSTMST-ARIN

OrgAdminHandleHandle:  REGIS10-ARIN
OrgAdminHandleName:    Registration, 
OrgAdminHandlePhone:   +1-844-347-2457
OrgAdminHandleEmail:   [email protected]
OrgAdminHandleRef:     https://rdap.arin.net/registry/entity/REGIS10-ARIN

OrgTechHandleHandle:  MIL-HSTMST-ARIN
OrgTechHandleName:    Network DoD, 
OrgTechHandlePhone:   +1-844-347-2457
OrgTechHandleEmail:   [email protected]
OrgTechHandleRef:     https://rdap.arin.net/registry/entity/MIL-HSTMST-ARIN

OrgTechHandleHandle:  REGIS10-ARIN
OrgTechHandleName:    Registration, 
OrgTechHandlePhone:   +1-844-347-2457
OrgTechHandleEmail:   [email protected]
OrgTechHandleRef:     https://rdap.arin.net/registry/entity/REGIS10-ARIN

AS325 - DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD), US

AS325

DNIC-ASBLK-00306-00371

United States Department of Defense (DoD)

United States