Data as of Nov 9, 2026
216.52.142.0/24
No anonymizer space · no proxy exits in 30 daysRadware Ltd · space held by PF IPV4 Borrower, LLC
IPv4 market
Path
2 · Leased from
4 · Use
Business
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
216.52.142.0/24
From the registry to its use
- Aug 24, 1998Registry recordPF IPV4 Borrower, LLCDirect Allocation216.52.140.0/22
- Jan 5, 2005AssignedWilliam Blair & CompanyReassigned216.52.142.0/24
- Feb 24, 2006Route objectAS11853 Unitas GlobalRADB route object for AS11853 Unitas Global, maintainer MAINT-AS1828
- Feb 24, 2006Route objectAS19024 Unitas GlobalRADB route object for AS19024 Unitas Global, maintainer MAINT-AS1828
- Jan 13, 2018– Apr 30, 2018AnnouncedAS11853 Unitas Global
- May 1, 2018– Nov 4, 2021
- Oct 4, 2018– Dec 2, 2018AnnouncedAS11853 Unitas Global
- Apr 14, 2019– May 19, 2019AnnouncedAS11853 Unitas Global
- Oct 11, 2019– Dec 9, 2019AnnouncedAS11853 Unitas Global
- Jun 14, 2021– Jun 25, 2021AnnouncedAS11853 Unitas Global
- Dec 7, 2021Route objectAS198949 Radware LtdRADB route object for AS198949 Radware Ltd, maintainer MAINT-AS198949
- Dec 11, 2021– Dec 22, 2021AnnouncedAS11853 Unitas Global
- Dec 18, 2021Route objectAS14742 Unitas GlobalRADB route object for AS14742 Unitas Global, maintainer MAINT-AS1828
- Dec 23, 2021– Mar 28, 2022
- Jan 28, 2022– Nov 8, 2026
- Feb 9, 2022– Feb 20, 2022
- Jul 3, 2022– Jul 26, 2022
- Oct 7, 2022– Oct 18, 2022
- Sep 8, 2023– Nov 8, 2026
- todayLeased fromIPv4.GlobalIP broker
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Leased from | Holder | RPKI |
|---|---|---|---|---|---|
| 216.52.140.0/22 since Sep 2023 | AS19024 | Hosting | IP broker IPv4.Global | PF IPV4 Borrower, 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 |
|---|---|---|---|---|---|---|
| 216.52.140.0/22 | 1,024 | PHIL-4-HOLDING | PF IPV4 Borrower, LLC (PIHL-4) · US | Direct Allocation | Aug 24, 1998 | ipinfo@ |
| └ 216.52.142.0/24 | 256 | INAP-CHI-WILLIAMBLAIR-1547 | William Blair & Company (C00984457) · US | Reassigned | Jan 5, 2005 | ipinfo@ via PHIL-4-HOLDING |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
IPv4 market
Holder
- Organization
- PF IPV4 Borrower, LLC
- Handle
- PIHL-4
- Range
- 216.
52. 140. 0/ 22 - Registration type
- Direct Allocation
- Record created
- Aug 24, 1998
Origin network
AS198949
IL
- Name
- Radware Ltd
- Type
- Business
- Registered
- Jun 28, 2012
- Domain
- radware.com
- Website
- www.radware.com/
- Industry
- Software Development
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
latest 12 of 15 stints
Summary
Routing history
- Pattern
- Rotating
- First seen
- Mar 2006
- Current origin since
- Jan 2022 · 4.8 yr
- Origin networks
- 4
- Last change of origin
- Jul 2022
Recorded history
History
- Stints on record
- 15
- Handoffs
- 8
IRR
Route objects on the exact prefix
Whois
Registration for this announcement
- Range
- 216.
52. 142. 0/ 24 - Netname
- INAP-CHI-WILLIAMBLAIR-1547
- Registrant
- William Blair & Company
- Organization
- William Blair & Company (C00984457)
- Type
- Reassigned
- Handle
- NET-216-52-142-0-1
- Parent
- NET-216-52-140-0-1
- Created
- Jan 5, 2005
- RIR
- ARIN
- Country
- US
- Delegated
- Aug 24, 1998
- Status
- assigned
Report abuse
Abuse contact
- ipinfo@
hilcostreambank. com - Name
- IP Admin
- Phone
- +1-212-610-5663
- Handle
- IPADM814-ARIN