AS370 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD), US

AS Number

AS370

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

AS370 Looking Glass

IPv4Prefixes

138

IPv6Prefixes

IPv4 NUMs

264,192

IPv6 NUMs(/64)

16,777,216

IPv4 Ranges
IPv6 Ranges

CIDR	Description	IP Num
55.54.0.0/16	Headquarters, USAISC	65536
55.54.204.0/24	Headquarters, USAISC	256
55.54.205.0/24	Headquarters, USAISC	256
55.54.210.0/24	Headquarters, USAISC	256
55.54.211.0/24	Headquarters, USAISC	256
55.54.212.0/24	Headquarters, USAISC	256
55.54.215.0/24	Headquarters, USAISC	256
55.54.216.0/24	Headquarters, USAISC	256
55.54.217.0/24	Headquarters, USAISC	256
55.54.218.0/24	Headquarters, USAISC	256
55.54.220.0/24	Headquarters, USAISC	256
55.54.221.0/24	Headquarters, USAISC	256
55.54.222.0/24	Headquarters, USAISC	256
55.54.223.0/24	Headquarters, USAISC	256
55.54.225.0/24	Headquarters, USAISC	256
55.54.226.0/24	Headquarters, USAISC	256
55.54.227.0/24	Headquarters, USAISC	256
55.54.228.0/24	Headquarters, USAISC	256
55.54.229.0/24	Headquarters, USAISC	256
55.54.230.0/24	Headquarters, USAISC	256
55.54.232.0/24	Headquarters, USAISC	256
55.54.233.0/24	Headquarters, USAISC	256
55.54.234.0/24	Headquarters, USAISC	256
55.54.235.0/24	Headquarters, USAISC	256
55.54.236.0/24	Headquarters, USAISC	256
55.54.237.0/24	Headquarters, USAISC	256
55.79.0.0/16	Headquarters, USAISC	65536
55.79.128.0/24	Headquarters, USAISC	256
55.79.143.0/24	Headquarters, USAISC	256
55.79.144.0/24	Headquarters, USAISC	256
55.79.145.0/24	Headquarters, USAISC	256
55.79.150.0/24	Headquarters, USAISC	256
55.79.151.0/24	Headquarters, USAISC	256
55.79.152.0/24	Headquarters, USAISC	256
55.79.155.0/24	Headquarters, USAISC	256
55.79.156.0/24	Headquarters, USAISC	256
55.79.157.0/24	Headquarters, USAISC	256
55.79.158.0/24	Headquarters, USAISC	256
55.79.160.0/24	Headquarters, USAISC	256
55.79.161.0/24	Headquarters, USAISC	256
55.79.162.0/24	Headquarters, USAISC	256
55.79.163.0/24	Headquarters, USAISC	256
55.79.165.0/24	Headquarters, USAISC	256
55.79.166.0/24	Headquarters, USAISC	256
55.79.167.0/24	Headquarters, USAISC	256
55.79.168.0/24	Headquarters, USAISC	256
55.79.169.0/24	Headquarters, USAISC	256
55.79.170.0/24	Headquarters, USAISC	256
55.79.172.0/24	Headquarters, USAISC	256
55.79.173.0/24	Headquarters, USAISC	256
55.79.174.0/24	Headquarters, USAISC	256
55.79.175.0/24	Headquarters, USAISC	256
55.79.176.0/24	Headquarters, USAISC	256
55.79.177.0/24	Headquarters, USAISC	256
55.79.180.0/24	Headquarters, USAISC	256
55.79.188.0/24	Headquarters, USAISC	256
55.93.0.0/16	Headquarters, USAISC	65536
55.93.128.0/22	Headquarters, USAISC	1024
55.93.133.0/24	Headquarters, USAISC	256
55.93.134.0/24	Headquarters, USAISC	256
55.93.135.0/24	Headquarters, USAISC	256
55.93.136.0/24	Headquarters, USAISC	256
55.93.137.0/24	Headquarters, USAISC	256
55.93.138.0/24	Headquarters, USAISC	256
55.93.139.0/24	Headquarters, USAISC	256
55.93.140.0/24	Headquarters, USAISC	256
55.93.142.0/24	Headquarters, USAISC	256
55.93.143.0/24	Headquarters, USAISC	256
55.93.145.0/24	Headquarters, USAISC	256
55.93.146.0/24	Headquarters, USAISC	256
55.93.147.0/24	Headquarters, USAISC	256
55.93.149.0/24	Headquarters, USAISC	256
55.93.150.0/24	Headquarters, USAISC	256
55.93.151.0/24	Headquarters, USAISC	256
55.93.152.0/24	Headquarters, USAISC	256
55.93.154.0/24	Headquarters, USAISC	256
55.93.155.0/24	Headquarters, USAISC	256
55.93.156.0/24	Headquarters, USAISC	256
55.93.157.0/24	Headquarters, USAISC	256
55.93.158.0/24	Headquarters, USAISC	256
55.93.160.0/24	Headquarters, USAISC	256
55.93.161.0/24	Headquarters, USAISC	256
55.93.162.0/24	Headquarters, USAISC	256
55.93.163.0/24	Headquarters, USAISC	256
55.93.164.0/24	Headquarters, USAISC	256
55.93.165.0/24	Headquarters, USAISC	256
55.93.166.0/24	Headquarters, USAISC	256
55.93.167.0/24	Headquarters, USAISC	256
55.93.168.0/24	Headquarters, USAISC	256
55.93.170.0/24	Headquarters, USAISC	256
55.93.171.0/24	Headquarters, USAISC	256
55.93.172.0/24	Headquarters, USAISC	256
55.93.173.0/24	Headquarters, USAISC	256
55.93.175.0/24	Headquarters, USAISC	256
55.93.176.0/24	Headquarters, USAISC	256
55.93.182.0/24	Headquarters, USAISC	256
55.93.184.0/24	Headquarters, USAISC	256
55.93.188.0/24	Headquarters, USAISC	256
55.93.190.0/24	Headquarters, USAISC	256
55.93.192.0/24	Headquarters, USAISC	256
55.93.194.0/24	Headquarters, USAISC	256
55.93.196.0/24	Headquarters, USAISC	256
55.93.198.0/24	Headquarters, USAISC	256
55.93.200.0/24	Headquarters, USAISC	256
55.93.204.0/24	Headquarters, USAISC	256
55.93.205.0/24	Headquarters, USAISC	256
55.93.210.0/24	Headquarters, USAISC	256
55.93.211.0/24	Headquarters, USAISC	256
55.93.212.0/24	Headquarters, USAISC	256
55.93.215.0/24	Headquarters, USAISC	256
55.93.216.0/24	Headquarters, USAISC	256
55.93.217.0/24	Headquarters, USAISC	256
55.93.218.0/24	Headquarters, USAISC	256
55.93.220.0/24	Headquarters, USAISC	256
55.93.221.0/24	Headquarters, USAISC	256
55.93.222.0/24	Headquarters, USAISC	256
55.93.223.0/24	Headquarters, USAISC	256
55.93.225.0/24	Headquarters, USAISC	256
55.93.226.0/24	Headquarters, USAISC	256
55.93.227.0/24	Headquarters, USAISC	256
55.93.228.0/24	Headquarters, USAISC	256
55.93.229.0/24	Headquarters, USAISC	256
55.93.230.0/24	Headquarters, USAISC	256
55.93.232.0/24	Headquarters, USAISC	256
55.93.233.0/24	Headquarters, USAISC	256
55.93.234.0/24	Headquarters, USAISC	256
55.93.235.0/24	Headquarters, USAISC	256
55.93.236.0/24	Headquarters, USAISC	256
55.93.237.0/24	Headquarters, USAISC	256
55.93.239.0/24	Headquarters, USAISC	256
55.93.243.0/24	Headquarters, USAISC	256
55.93.245.0/24	Headquarters, USAISC	256
55.93.247.0/24	Headquarters, USAISC	256
55.93.249.0/24	Headquarters, USAISC	256
55.93.251.0/24	Headquarters, USAISC	256
55.93.252.0/24	Headquarters, USAISC	256
55.100.0.0/16	Headquarters, USAISC	65536
139.244.72.0/21	DoD Network Information Center	2048

CIDR	Description	IP NUMs(prefix /64)
2608:10a:6000::/40	United States Department of Defense (DoD)	16777216
2608:10a:6001::/48	United States Department of Defense (DoD)	65536
2608:10a:6002::/48	United States Department of Defense (DoD)	65536
2608:10a:6013::/48	United States Department of Defense (DoD)	65536
2608:10a:6030::/48	United States Department of Defense (DoD)	65536

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
AS27064	DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD), US		1,656,320	2,359,296	IPv4

ASNumber:       370
ASName:         DNIC-ASBLK-00306-00371
ASHandle:       AS306
RegDate:        1989-06-30
Updated:        2025-09-12
Ref:            https://rdap.arin.net/registry/autnum/370

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

AS370 - DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD), US

AS370

DNIC-ASBLK-00306-00371

United States Department of Defense (DoD)

United States