ResearchRouting table, RPKI, IRR & looking glass

AS668 United States Department of Defense (DoD)

AS668 (DNIC-AS-00668) is registered to United States Department of Defense (DoD) in US, through ARIN. It originates 193 prefixes in the global routing table.

192
IPv4 prefixes
1
IPv6 prefixes
2,555,904
IPv4 addresses
0%
RPKI valid
Registration

Who holds AS668

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS668
Handle
DNIC-AS-00668
Organization
United States Department of Defense (DoD)
Country
US
Registry
ARIN
ASPA
None published
WHOIS recordARIN
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       668
ASName:         DNIC-AS-00668
ASHandle:       AS668
RegDate:        1990-04-24
Updated:        2025-09-12
Ref:            https://rdap.arin.net/registry/autnum/668


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


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#
Routing

What AS668 announces

Prefixes originated by AS668 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
192
IPv6 prefixes
1
IPv4 addresses
2,555,904 (9,984 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
193
ROAs naming AS668
0
With an IRR route object
173 89%
Prefixes

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

IPv4 (192)
6.2.0.0/186.2.64.0/196.2.96.0/226.2.104.0/226.2.112.0/226.2.120.0/226.3.0.0/176.4.0.0/166.11.1.0/246.11.51.0/246.11.250.0/246.11.254.0/246.15.100.0/24128.132.0.0/16128.160.0.0/17129.92.0.0/16129.229.0.0/16130.109.0.0/16130.163.0.0/16131.92.131.0/24131.92.132.0/22131.92.136.0/21131.92.144.0/21131.92.162.0/23131.92.164.0/22131.92.168.0/21131.92.176.0/22131.92.180.0/23131.92.182.0/23131.92.184.0/23131.92.186.0/24131.92.192.0/18131.120.0.0/16131.121.0.0/16131.122.0.0/16131.214.0.0/16131.218.0.0/16131.250.0.0/17131.250.128.0/18131.250.192.0/20132.45.0.0/16132.193.0.0/16134.164.220.0/24134.166.0.0/18134.166.64.0/18134.166.128.0/22134.166.132.0/23134.166.134.0/24134.166.135.0/24134.166.136.0/23134.166.138.0/24134.166.144.0/20137.128.0.0/16140.5.0.0/16140.6.0.0/16140.25.0.0/16140.25.98.0/24140.27.8.0/22140.27.10.0/23140.27.12.0/23140.27.14.0/23140.31.0.0/16140.32.0.0/16140.178.0.0/16143.56.0.0/16144.3.0.0/16147.227.0.0/16147.241.72.0/21147.241.80.0/21147.241.88.0/21147.241.96.0/22147.241.104.0/22147.241.112.0/22147.241.118.0/24147.241.120.0/22147.241.126.0/24147.241.160.0/21147.241.192.0/18147.248.48.0/20150.125.0.0/16155.29.152.0/21155.141.0.0/16155.148.0.0/17155.148.128.0/18155.148.192.0/19155.148.224.0/20155.148.240.0/21155.154.0.0/16157.187.0.0/16158.12.0.0/16163.240.0.0/16164.49.0.0/16164.122.0.0/20164.172.0.0/16164.173.0.0/16164.191.0.0/16192.5.17.0/24192.5.21.0/24192.5.22.0/24192.5.23.0/24192.5.41.0/24192.5.148.0/24192.12.124.0/24192.16.167.0/24192.31.147.0/24192.42.141.0/24192.48.242.0/24192.55.117.0/24192.58.244.0/24192.67.80.0/24192.67.93.0/24192.86.66.0/24192.88.110.0/24192.100.92.0/24192.138.87.0/24192.160.158.0/24192.160.159.0/24192.171.8.0/22192.171.12.0/24192.175.87.0/24
Show 72 more
192.190.228.0/24192.190.229.0/24198.14.32.0/19198.97.234.0/23198.97.236.0/24198.154.16.0/21198.154.24.0/23198.154.173.0/24198.154.174.0/23198.154.176.0/23198.253.40.0/21198.253.56.0/24198.253.64.0/21198.253.110.0/24198.253.128.0/19198.253.168.0/21198.253.192.0/20198.253.252.0/24198.253.253.0/24199.9.0.0/24199.9.1.0/24199.9.2.0/24199.10.16.0/24199.10.17.0/24199.10.18.0/24199.10.19.0/24199.10.20.0/24199.10.62.0/24199.10.127.0/24199.10.148.0/24199.10.233.0/24199.31.16.0/20199.31.107.0/24199.123.86.0/23199.123.88.0/23199.123.90.0/24199.123.105.0/24199.123.113.0/24199.208.32.0/21199.208.158.0/24199.209.144.0/21199.209.144.0/22199.209.149.0/24199.209.150.0/23199.209.240.0/21199.209.248.0/21204.34.198.0/24204.44.136.0/23204.222.6.0/23204.222.8.0/23204.222.64.0/21204.238.129.0/24205.66.100.0/22205.67.232.0/24205.68.95.0/24205.111.251.0/24205.111.252.0/24206.37.28.0/23206.37.30.0/23206.37.224.0/24206.37.226.0/24206.37.252.0/24207.132.147.0/24207.133.211.0/24214.4.136.0/24214.9.92.0/24214.9.94.0/24214.9.95.0/24214.9.96.0/21214.10.25.0/24214.27.178.0/24214.29.136.0/21
IPv6 (1)
2001:480::/32

RPKI valid   RPKI invalid   no ROA covers it

Neighbors

Who AS668 is reached through

The AS just before AS668 in the paths our looking glass collectors hold, for 60 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

AS6939 HURRICANE 60AS701 UUNET 54
IRR

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.

Sourceas-nameMaintained by
RADBUNSPECIFIEDMAINT-AS668

Route objects with origin AS668: RADB 250

as-sets that list AS668 (17)
AS-40300-IX-CUSTOMERSAS-CTBC-CUSTOMERS78AS-CTBC-TOOLS-10AS-DRENAS-DRIXAS-FORTE-TELECOM-CUSTOMER-TRIALAS-HURRICANEAS-HURRICANEV6AS-NETACTUATEAS-TRANSROUTE-SPECAS-UNIVHAWAIIAS10886:AS-RE-PROVAS20965:AS-FROM-INTERNET2-TO-GEANTAS26212:AS-DRF-IX-PEERSAS40300:AS-IX-CUSTOMERSAS668:AS-CONEAS7575:AS-RESEARCH
Tools

Check AS668 live

ASN lookup and WHOISRPKI validatorASPA validatorIRR lookup