Data as of Nov 7, 2026
66.37.34.0/23
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@ |
| └ 66.37.34.32/29 | 8 | LTF--66-37-34-32-29 | unknown | — | — | — |
| └ 66.37.34.48/29 | 8 | LTF-LT-844-66-37-34-48-29 | unknown | — | — | — |
| └ 66.37.34.56/29 | 8 | NET-66-37-34-56-29 | unknown | — | — | — |
| └ 66.37.34.96/29 | 8 | LTF--66-37-34-96-29 | unknown | — | — | — |
| └ 66.37.34.120/29 | 8 | NET-66-37-34-120-29 | unknown | — | — | — |
| └ 66.37.34.128/27 | 32 | NET-66-37-34-128-27 | unknown | — | — | — |
| └ 66.37.34.160/29 | 8 | NET-LT-523-66-37-34-160-29 | unknown | — | — | — |
| └ 66.37.34.248/29 | 8 | NET-SD-50149-66-37-34-248-29 | unknown | — | — | — |
| └ 66.37.35.16/28 | 16 | LTF--66-37-35-16-28 | unknown | — | — | — |
| └ 66.37.35.96/27 | 32 | LTF--66-37-35-96-27 | unknown | — | — | — |
| └ 66.37.35.132/30 | 4 | LTF-LT-751-66-37-35-132-30 | unknown | — | — | — |
| └ 66.37.35.192/27 | 32 | LTF-66-37-35-192-27 | unknown | — | — | — |
Network & registry
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
- Nov 2021
- Current origin since
- Nov 2021 · 5.0 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS46887 | RADB | Crown Castle Fiber LLC | MAINT-AS27506 | May 23, 2025 |
Whois
Registration for this announcement
- Range
- 66.
37. 32. 0/ 20 - Netname
- ZAYO-CCF-66-37-32-0
- Registrant
- Zayo Bandwidth
- Organization
- Zayo Bandwidth (ZAYOB)
- Org address
- 1401 Wynkoop St., Denver, CO, 80202
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-66-37-32-0-1
- Parent
- NET-66-0-0-0-0
- Created
- Oct 24, 2013
- 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