AS356 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD), US

AS Number

AS356

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

AS356 Looking Glass

IPv4Prefixes

IPv6Prefixes

IPv4 NUMs

131,072

IPv6 NUMs(/64)

IPv4 Ranges

CIDR	Description	IP Num
55.48.0.0/16	Headquarters, USAISC	65536
55.48.200.0/24	Headquarters, USAISC	256
55.89.0.0/16	Headquarters, USAISC	65536
55.89.1.0/24	Headquarters, USAISC	256
55.89.33.0/24	Headquarters, USAISC	256
55.89.36.0/24	Headquarters, USAISC	256
55.89.77.0/24	Headquarters, USAISC	256
55.89.85.0/24	Headquarters, USAISC	256
55.89.96.0/24	Headquarters, USAISC	256
55.89.99.0/24	Headquarters, USAISC	256
55.89.105.0/24	Headquarters, USAISC	256
55.89.149.0/24	Headquarters, USAISC	256
55.89.150.0/24	Headquarters, USAISC	256
55.89.155.0/24	Headquarters, USAISC	256
55.89.156.0/24	Headquarters, USAISC	256
55.89.160.0/24	Headquarters, USAISC	256
55.89.170.0/24	Headquarters, USAISC	256
55.89.174.0/23	Headquarters, USAISC	512
55.89.180.0/24	Headquarters, USAISC	256
55.89.200.0/24	Headquarters, USAISC	256
55.89.205.0/24	Headquarters, USAISC	256
55.89.210.0/24	Headquarters, USAISC	256
55.89.219.0/24	Headquarters, USAISC	256
55.89.220.0/24	Headquarters, USAISC	256
55.89.221.0/24	Headquarters, USAISC	256
55.89.222.0/24	Headquarters, USAISC	256
55.89.223.0/24	Headquarters, USAISC	256
55.89.224.0/24	Headquarters, USAISC	256
55.89.225.0/24	Headquarters, USAISC	256
55.89.226.0/24	Headquarters, USAISC	256
55.89.227.0/24	Headquarters, USAISC	256
55.89.228.0/24	Headquarters, USAISC	256
55.89.229.0/24	Headquarters, USAISC	256
55.89.232.0/24	Headquarters, USAISC	256
55.89.234.0/23	Headquarters, USAISC	512
55.89.238.0/24	Headquarters, USAISC	256
55.89.240.0/24	Headquarters, USAISC	256
55.89.244.0/24	Headquarters, USAISC	256
55.89.245.0/24	Headquarters, USAISC	256
55.89.246.0/24	Headquarters, USAISC	256
55.89.247.0/24	Headquarters, USAISC	256
55.89.250.0/24	Headquarters, USAISC	256
55.89.252.0/24	Headquarters, USAISC	256
55.89.253.0/24	Headquarters, USAISC	256

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

ASNumber:       356
ASName:         DNIC-ASBLK-00306-00371
ASHandle:       AS306
RegDate:        1989-06-30
Updated:        2025-09-12
Ref:            https://rdap.arin.net/registry/autnum/356

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

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

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

AS356 - DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD), US

AS356

DNIC-ASBLK-00306-00371

United States Department of Defense (DoD)

United States