Data as of Nov 7, 2026
64.128.236.0/24
No anonymizer space · no proxy exits in 30 daysLevel 3 Parent, LLC
Announcement
this exact prefix
No RPKI
Announced by
Type
Unknown
Risk
30 / 100 · Medium
Recently moved
Recent change
New origin Aug 2026
from AS3549 Level 3 Parent, LLC, after 9.8 years unannounced
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 64.128.0.0/15 since Oct 2016 | AS3549 | Internet provider | 36 2 always on | Level 3 Parent, LLC |
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 |
|---|---|---|---|---|---|---|
| 64.128.0.0/15 | 131,072 | TWTC-NETBLK-11 | Level 3 Parent, LLC (LPL-141) · US | Direct Allocation | Apr 26, 2004 | abuse@ |
| └ 64.128.236.0/24 | 256 | TWTC-HCST2 | Hassler Communication Systems Technology, Inc (HCST) · US | Reallocated | Nov 18, 2005 | hcst@ |
Network & registry
IPv4 market
Holder
- Organization
- Level 3 Parent, LLC
- Handle
- LPL-141
- Range
- 64.
128. 0. 0/ 15 - Registration type
- Direct Allocation
- Record created
- Apr 26, 2004
- Reallocated to
- Hassler Communication Systems Technology, Inc (HCST)
- Reallocated range
- 64.
128. 236. 0/ 24 - Reallocated
- Nov 18, 2005
Origin network
AS3356
US
- Name
- Level 3 Parent, LLC
- Type
- Internet provider
- Registered
- Mar 10, 2000
- Domain
- lumen.com
- Website
- www.lumen.com
- 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
- Reactivated
- First seen
- Dec 2005
- Current origin since
- Aug 2026 · 3 mo
- Origin networks
- 4
- Last change of origin
- Aug 2026
Recorded history
History
- Handoffs
- 3
Whois
Registration for this announcement
- Range
- 64.
128. 236. 0/ 24 - Netname
- TWTC-HCST2
- Registrant
- Hassler Communication Systems Technology, Inc
- Organization
- Hassler Communication Systems Technology, Inc (HCST)
- Org address
- 1430 Oak Court, Suite 312, Beavercreek, OH, 45430
- Org country
- US
- Type
- Reallocated
- Handle
- NET-64-128-236-0-1
- Parent
- NET-64-128-0-0-1
- Created
- Nov 18, 2005
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 26, 2004
- Status
- assigned
Report abuse
Abuse contact
- hcst@
hcst. com - Name
- Support
- Phone
- +1-937-427-9000
- Handle
- SUPPO135-ARIN