5231 DNIC-ASBLK-05120-05376, US
Adjacency: 2 Upstream: 1 Downstream: 1
Upstream Adjacent AS list
AS27065 DNIC-ASBLK-27032-27159, US
Downstream Adjacent AS list
AS27139 DNIC-ASBLK-27032-27159, US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 78246 AS5231 TRANSIT Originate: 0 /0.00 Transit: 5632 /19.54 DNIC-ASBLK-05120-05376, US
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS5231 16 More Specifics 16 Total Advertisements DNIC-ASBLK-05120-05376, US
128.26.61.0/24 128.26.0.0/16
128.26.63.0/24 128.26.0.0/16
128.26.64.0/24 128.26.0.0/16
128.26.66.0/24 128.26.0.0/16
128.26.67.0/24 128.26.0.0/16
128.26.70.0/24 128.26.0.0/16
128.26.246.0/24 128.26.0.0/16
198.218.51.0/24 198.218.0.0/16
205.60.236.0/24 205.56.0.0/13
214.6.97.0/24 214.0.0.0/8
214.29.98.0/24 214.0.0.0/8
214.29.103.0/24 214.0.0.0/8
214.29.225.0/24 214.0.0.0/8
214.29.233.0/24 214.0.0.0/8
214.29.238.0/24 214.0.0.0/8
214.51.42.0/24 214.0.0.0/8
128.26.62.0/24 128.26.0.0/16
128.26.99.0/24 128.26.0.0/16
128.26.118.0/24 128.26.0.0/16
128.26.122.0/24 128.26.0.0/16
128.26.124.0/24 128.26.0.0/16
128.26.125.0/24 128.26.0.0/16
198.218.93.0/24 198.218.0.0/16
214.29.97.0/24 214.0.0.0/8
214.29.119.0/24 214.0.0.0/8
214.64.75.0/24 214.0.0.0/8
Prefixes added and withdrawn by this origin AS in the past 7 days.
+ 128.26.246.0/24 Announced
+ 198.218.51.0/24 Announced
+ 214.29.238.0/24 Announced
- 128.26.62.0/24 Withdrawn
- 128.26.99.0/24 Withdrawn
- 128.26.118.0/24 Withdrawn
- 128.26.122.0/24 Withdrawn
- 128.26.124.0/24 Withdrawn
- 128.26.125.0/24 Withdrawn
- 198.218.93.0/24 Withdrawn
- 214.29.97.0/24 Withdrawn
- 214.29.119.0/24 Withdrawn
- 214.64.75.0/24 Withdrawn
whois: 402590
IANA has recorded AS5231 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS5231\n
#
# 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/
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
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ASNumber: 5120 - 5376
ASName: DNIC-ASBLK-05120-05376
ASHandle: AS5120
RegDate: 1995-05-09
Updated: 2025-09-12
Ref: https://rdap.arin.net/registry/autnum/5120
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: 2025-03-13
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
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
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
#
# 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.
#