Data as of Nov 7, 2026
208.73.187.0/24
No anonymizer space · no proxy exits in 30 daysDepartment of Homeland Security
Network & registry
Origin network
AS396973
US
- Name
- Department of Homeland Security
- Type
- Business
- Registered
- Aug 6, 2018
- Domain
- dhs.gov
- Industry
- Government and Public Administration
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Apr 2007
- Current origin since
- Sep 2025 · 1.1 yr
- Origin networks
- 6
- Last change of origin
- Sep 2025
Recorded history
History
- Handoffs
- 5
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 208.73.184.0/21 | AS396972 | /24 | ARIN | Another network |
| 208.73.184.0/21 | AS396973 | /24 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 208.
73. 184. 0/ 21 - Netname
- NCSD-01
- Registrant
- Department of Homeland Security
- Organization
- Department of Homeland Security (DHS-39)
- Org address
- 1110 North Glebe Road, Arlington, VA, 22201
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-208-73-184-0-1
- Parent
- NET-208-0-0-0-0
- Created
- Dec 21, 2006
- RIR
- ARIN
- Country
- US
- Delegated
- Dec 21, 2006
- Status
- assigned
Report abuse
Abuse contact
- jeremy.
delong@ cisa. dhs. gov - Name
- DeLong, Jeremy
- Phone
- +1-850-307-7275
- Handle
- DELON43-ARIN