Data as of Nov 4, 2026
155.19.64.0/18
No anonymizer space · no proxy exits in 30 daysUnited States Department of Defense (DoD)
Announcements
Nesting
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Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
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Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 155.19.80.0/23 since Dec 2025 | AS6040 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 155.19.82.0/23 since Dec 2025 | AS6040 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 155.19.84.0/24 since Dec 2025 | AS6040 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 155.19.85.0/24 since Dec 2025 | AS6040 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 155.19.86.0/23 since Dec 2025 | AS6040 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 155.19.88.0/24 since Dec 2025 | AS6040 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 155.19.107.0/24 since Dec 2025 | AS6040 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 155.19.108.0/23 since Dec 2025 | AS6040 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 155.19.112.0/23 since Dec 2025 | AS6040 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 155.19.121.0/24 since Dec 2025 | AS6040 | Business | United States Department of Defense (DoD) via Headquarters, USAISC | |
| 155.19.124.0/24 since Dec 2025 | AS6040 | Business | United States Department of Defense (DoD) via Headquarters, USAISC |
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 |
|---|---|---|---|---|---|---|
| 155.19.0.0/16 | 65,536 | CTNOSC-NET6 | United States Department of Defense (DoD) (USDDD) · US | Direct Allocation | Oct 28, 1991 | [email protected] |
| └ 155.19.0.0/16 | 65,536 | CTNOSC-NET6 | Headquarters, USAISC (HEADQU-3) · US | Reallocated | Aug 22, 2025 | — |
Network & registry
Registry
Holder
- Organization
- United States Department of Defense (DoD)
- Handle
- USDDD
- Range
- 155.19.0.0/16
- Registration type
- Direct Allocation
- Record created
- Oct 28, 1991
- Legacy
- yes
- Reallocated to
- Headquarters, USAISC (HEADQU-3)
- Reallocated
- Aug 22, 2025
Origin network
AS27064
US
- Name
- United States Department of Defense (DoD)
- Type
- Business
- Registered
- Jan 16, 2003
- Domain
- mail.mil
- Industry
- Military, Defense, National Security, and International Affairs
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Aug 2011
- Current origin since
- Dec 2025 · 11 mo
- Origin networks
- 3
- Last change of origin
- Dec 2025
Recorded history
History
- Handoffs
- 2
Whois
Registration for this announcement
- Range
- 155.19.0.0/16
- Netname
- CTNOSC-NET6
- Registrant
- Headquarters, USAISC
- Organization
- Headquarters, USAISC (HEADQU-3)
- Org address
- NETC-ANC CONUS TNOSC, Fort Huachuca, AZ, 85613
- Org country
- US
- Type
- Reallocated
- Handle
- NET-155-19-0-0-2
- Parent
- NET-155-19-0-0-1
- Created
- Aug 22, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 28, 1991
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- No, Contact Known
- Phone
- +1-800-555-1234
- Handle
- CKN23-ARIN