Data as of Nov 13, 2026
199.9.91.0/24
No anonymizer space · no proxy exits in 30 daysUnited States Department of Defense (DoD)
Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Risk
30 / 100 · Medium
Recently moved
Recent change
New origin Nov 12, 2026
from AS3471 United States Department of Defense (DoD)
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 199.9.64.0/18 since Dec 2010 | AS721 | Business | United States Department of Defense (DoD) via DoD Network Information Center |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 199.9.64.0/18 | 16,384 | NETBLK-JCSE | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Feb 3, 1994 | disa. |
| └ 199.9.64.0/18 | 16,384 | NETBLK-JCSE | DoD Network Information Center (DNIC) · US | Reallocated | Aug 13, 2025 | disa. |
| └ 199.9.64.0/19 | 8,192 | JCSE-NIPRNET | DoD Network Information Center (DNIC) · US | Reassigned | Aug 13, 2025 | disa. |
Network & registry
Registry
Holder
- Organization
- United States Department of Defense (DoD)
- Handle
- USDDD
- Range
- 199.
9. 64. 0/ 18 - Registration type
- Direct Allocation
- Record created
- Feb 3, 1994
- Legacy
- yes
- Reallocated to
- DoD Network Information Center (DNIC)
- Reallocated
- Aug 13, 2025
Origin network
AS3472
US
- Name
- United States Department of Defense (DoD)
- Type
- Business
- Registered
- May 10, 1994
- Domain
- mail.mil
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- May 2011
- Current origin since
- Nov 12, 2026 · under a month
- Origin networks
- 3
- Last change of origin
- Jul 2026
Recorded history
History
- Handoffs
- 6
Whois
Registration for this announcement
- Range
- 199.
9. 64. 0/ 19 - Netname
- JCSE-NIPRNET
- Registrant
- DoD Network Information Center
- Organization
- DoD Network Information Center (DNIC)
- Org address
- 3990 E. Broad Street, Columbus, OH, 43218
- Org country
- US
- Type
- Reassigned
- Handle
- NET-199-9-64-0-3
- Parent
- NET-199-9-64-0-2
- Created
- Aug 13, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Feb 3, 1994
- Status
- assigned
Report abuse
Abuse contact
- disa.
columbus. ns. mbx. hostmaster-dod-nic@ mail. mil - Name
- Network DoD
- Phone
- +1-844-347-2457
- Handle
- MIL-HSTMST-ARIN