View

If you are scraping this block for the prefixes that a AS originates, please use the data dumps in https://bgp.tools/kb/api and cache them

	Prefix	Description
	2001:480:a0::/48	High Performance Computing
	2001:480:a1::/48	High Performance Computing
	2001:480:aa::/48	High Performance Computing
	2001:480:ab::/48	High Performance Computing
	2001:480:b0::/48	High Performance Computing
	2001:480:1801::/48	High Performance Computing

---

Network Policy

Click here to learn more about what this graph means and what makes up a network policy Global Aggregation Policy nifty_davinci Policy confident_darwin Policy youthful_clarke Policy cranky_easley

Chart Display Options

Display links using non straight lines

Prefixes in selected policy

Load all prefixes in policy

---

How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS668	DoD High Performance Computing (Defense Research and Engineering Network)	✘	✔

---

Peers

	ASN	Description	IPv4	IPv6
	AS668	DoD High Performance Computing (Defense Research and Engineering Network)	✘	✔

ASHandle:       AS5120
OrgID:          USDDD
ASName:         DNIC-ASBLK-05120-05376
ASNumber:       5120 - 5376
RegDate:        1995-05-09
Updated:        2025-09-12
Source:         ARIN



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:        2025-03-13
OrgAdminHandle: REGIS10-ARIN
OrgTechHandle:  MIL-HSTMST-ARIN
OrgTechHandle:  REGIS10-ARIN
OrgAbuseHandle: MIL-HSTMST-ARIN
OrgNOCHandle:   MIL-HSTMST-ARIN
Source:         ARIN





OrgAdminHandle:       REGIS10-ARIN
OrgAdminName:          Registration
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        MIL-HSTMST-ARIN
OrgTechName:           Network DoD
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        REGIS10-ARIN
OrgTechName:           Registration
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       MIL-HSTMST-ARIN
OrgAbuseName:          Network DoD
# Email removed, Log into bgp.tools to see whois emails


OrgNOCHandle:         MIL-HSTMST-ARIN
OrgNOCName:            Network DoD
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-06-14T03:25:37Z UTC

---

Member of the following AS-SETs

-	Member	ASN Count
RADB	as668:as-transit	28
RADB	as-dren	30
RADB	as-hurricanev6	21167