Data as of Nov 8, 2026
66.37.42.0/24
No anonymizer space · no proxy exits in 30 daysCrown Castle Fiber LLC · space held by Zayo Bandwidth
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 66.37.32.0/20 since Nov 2013 | AS46887 | Internet provider | 1 | Zayo Bandwidth |
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 |
|---|---|---|---|---|---|---|
| 66.37.32.0/20 | 4,096 | ZAYO-CCF-66-37-32-0 | Zayo Bandwidth (ZAYOB) · US | Direct Allocation | Oct 24, 2013 | abuse@ |
| └ 66.37.42.0/24 | 256 | NET-66-37-42-0-24 | Cyber-Ark Software (C04852424) · US | Reassigned | Jan 20, 2014 | abuse@ via ZAYO-CCF-66-37-32-0 |
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
Registry
Holder
- Organization
- Zayo Bandwidth
- Handle
- ZAYOB
- Range
- 66.
37. 32. 0/ 20 - Registration type
- Direct Allocation
- Record created
- Oct 24, 2013
Origin network
AS46887
US
- Name
- Crown Castle Fiber LLC
- Type
- Internet provider
- Registered
- Apr 13, 2009
- Domain
- zayo.com
- Website
- www.crowncastle.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
- Stable
- First seen
- Feb 2014
- Current origin since
- Feb 2014 · 13 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS46887 | RADB | CCFL-10 Cyber-Ark Software | MAINT-AS27506 | May 23, 2025 |
Whois
Registration for this announcement
- Range
- 66.
37. 42. 0/ 24 - Netname
- NET-66-37-42-0-24
- Registrant
- Cyber-Ark Software
- Organization
- Cyber-Ark Software (C04852424)
- Type
- Reassigned
- Handle
- NET-66-37-42-0-1
- Parent
- NET-66-37-32-0-1
- Created
- Jan 20, 2014
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 24, 2013
- Status
- assigned
Report abuse
Abuse contact
- abuse@
zayo. com - Name
- Abuse
- Phone
- +1-866-236-2824
- Handle
- ABUSE5675-ARIN