Data as of Nov 7, 2026
161.203.19.0/24
No anonymizer space · no proxy exits in 30 daysLevel 3 Parent, LLC · space held by U.S. Government Accountability Office
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 161.203.18.0/23 since Jul 2010 | AS209 | Business | U.S. Government Accountability Office |
Network & registry
Origin network
AS10753
US
- Name
- Level 3 Parent, LLC
- Type
- Internet provider
- Registered
- Nov 18, 1997
- Domain
- level3.com
- Industry
- Hosting and Cloud Provider
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Reactivated
- First seen
- Sep 2017
- Current origin since
- Feb 2025 · 1.7 yr
- Origin networks
- 2
- Last change of origin
- Feb 2025
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 161.203.19.0/24 | AS10753 | /24 | ARIN | RPKI valid |
| 161.203.18.0/23 | AS209 | /23 | ARIN | Another network |
| 161.203.0.0/16 | AS2581 | /16 | ARIN | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS10753 | ARIN | U.S. Government Accountability Office | MNT-UGAO | Aug 4, 2025 |
Whois
Registration for this announcement
- Range
- 161.
203. 0. 0/ 16 - Netname
- GAO
- Registrant
- U.S. Government Accountability Office
- Organization
- U.S. Government Accountability Office (UGAO)
- Org address
- 441 G Street NW, Room 2840-A, Washington, DC, 20548
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-161-203-0-0-1
- Parent
- NET-161-0-0-0-0
- Created
- Feb 5, 1993
- RIR
- ARIN
- Country
- US
- Delegated
- Feb 5, 1993
- Status
- assigned
Report abuse
Abuse contact
- nobody@
example. com - Name
- No, Contact Known
- Phone
- +1-800-555-1234
- Handle
- CKN23-ARIN