206208 looking glass

AS721 United States Department of Defense (DoD) 🇺🇸 US

Announcing 229 prefixes, seen at the RIS collectors.

IPv4 prefixes
227
72,919,808 (284,843 × /24)
IPv6 prefixes
2
2 × /32
Upstreams
1
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
3
transit customers observed
Customer cone
162
ASes reachable through it

Registry and operator data

AS number
AS721
Name
United States Department of Defense (DoD)
Organisation
United States Department of Defense (DoD)
Country
🇺🇸 US
RIR
ARIN

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

0 valid (0.0%) 0 invalid (0.0%) 229 no ROA (100.0%)

Whois

Fetched from whois.arin.net

ASNumber:       721 - 726
ASName:         DNIC-ASBLK-00721-00726
ASHandle:       AS721
RegDate:
Updated:        2025-09-12
Ref:            https://rdap.arin.net/registry/autnum/721

OrgName:        United States Department of Defense (DoD)
OrgId:          USDDD
Address:        3990 E. Broad Street
City:           Columbus
StateProv:      OH
PostalCode:     43218
Country:        US
RegDate:        2007-01-12
Updated:        2026-08-12
Ref:            https://rdap.arin.net/registry/entity/USDDD

OrgNOCHandle: MIL-HSTMST-ARIN
OrgNOCName:   Network DoD
OrgNOCPhone:  +1-844-347-2457
OrgNOCEmail:  disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
OrgNOCRef:    https://rdap.arin.net/registry/entity/MIL-HSTMST-ARIN

OrgAbuseHandle: MIL-HSTMST-ARIN
OrgAbuseName:   Network DoD
OrgAbusePhone:  +1-844-347-2457
OrgAbuseEmail:  disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
OrgAbuseRef:    https://rdap.arin.net/registry/entity/MIL-HSTMST-ARIN

OrgTechHandle: REGIS10-ARIN
OrgTechName:   Registration
OrgTechPhone:  +1-844-347-2457
OrgTechEmail:  disa.columbus.ns.mbx.arin-registrations@mail.mil
OrgTechRef:    https://rdap.arin.net/registry/entity/REGIS10-ARIN

OrgTechHandle: MIL-HSTMST-ARIN
OrgTechName:   Network DoD
OrgTechPhone:  +1-844-347-2457
OrgTechEmail:  disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
OrgTechRef:    https://rdap.arin.net/registry/entity/MIL-HSTMST-ARIN