Data as of Nov 4, 2026
205.172.72.0/21
No anonymizer space · no proxy exits in 30 daysLevel 3 Parent, LLC · space held by Commonwealth of PA - OA / Integrated Network Management Services
Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Risk
30 / 100 · Medium
Recently moved
Recent change
New origin Jun 2026
from AS10753 Level 3 Parent, LLC
Network & registry
Origin network
AS18756
US
- Name
- Level 3 Parent, LLC
- Type
- Education
- Registered
- Oct 6, 2000
- Domain
- level3.com
- Industry
- Hosting and Cloud Provider
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- May 2005
- Current origin since
- Jun 2026 · 4 mo
- Origin networks
- 3
- Last change of origin
- Jun 2026
Recorded history
History
- Handoffs
- 8
- Also announced by
- 10753
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS18756 | NTTCOM | Commonwealth of Pennsylvania | MAINT-NTTCOM-RA | Apr 13, 2007 |
Whois
Registration for this announcement
- Range
- 205.172.72.0 - 205.172.107.255
- Netname
- CWOPA
- Registrant
- Commonwealth of PA - OA / Integrated Network Management Services
- Organization
- Commonwealth of PA - OA / Integrated Network Management Services (CPOINMS)
- Org address
- 1 Technology Park, Harrisburg, PA, 17110-2913
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-205-172-72-0-1
- Parent
- NET-205-0-0-0-0
- Created
- Mar 31, 1995
- RIR
- ARIN
- Country
- US
- Delegated
- Mar 31, 1995
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- Enterprise Network Services
- Phone
- +1-717-580-9653
- Handle
- ENS9-ARIN