Data as of Nov 9, 2026
104.247.37.0/24
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 |
|---|---|---|---|---|---|
| 104.247.32.0/19 since Apr 2015 | 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 |
|---|---|---|---|---|---|---|
| 104.247.32.0/19 | 8,192 | ZAYO-CCF-104-247-32-0 | Zayo Bandwidth (ZAYOB) · US | Direct Allocation | Dec 24, 2014 | abuse@ |
| └ 104.247.37.8/29 | 8 | LTF--104-247-37-8-29 | unknown | — | — | — |
| └ 104.247.37.64/29 | 8 | LTF--104-247-37-64-29 | unknown | — | — | — |
| └ 104.247.37.72/29 | 8 | LTF-104-247-37-72-29 | unknown | — | — | — |
| └ 104.247.37.104/29 | 8 | LTF--104-247-37-104-29 | unknown | — | — | — |
| └ 104.247.37.112/29 | 8 | LTF-104-247-37-112-29 | unknown | — | — | — |
| └ 104.247.37.124/30 | 4 | NET-0-104-247-37-124-30 | unknown | — | — | — |
| └ 104.247.37.128/29 | 8 | LTF--104-247-37-128-29 | unknown | — | — | — |
| └ 104.247.37.136/29 | 8 | LTF-0-104-247-37-136-29 | unknown | — | — | — |
| └ 104.247.37.144/29 | 8 | LTF--104-247-37-144-29 | unknown | — | — | — |
| └ 104.247.37.184/29 | 8 | LTF-LT-551-104-247-37-184-29 | unknown | — | — | — |
| └ 104.247.37.240/29 | 8 | LTF--104-247-37-240-29 | unknown | — | — | — |
| └ 104.247.37.248/29 | 8 | LTF--104-247-37-248-29 | 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
- Feb 2015
- 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 | MAINT-AS27506 | Sep 3, 2025 |
Whois
Registration for this announcement
- Range
- 104.
247. 32. 0/ 19 - Netname
- ZAYO-CCF-104-247-32-0
- Registrant
- Zayo Bandwidth
- Organization
- Zayo Bandwidth (ZAYOB)
- Org address
- 1401 Wynkoop St., Denver, CO, 80202
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-104-247-32-0-1
- Parent
- NET-104-0-0-0-0
- Created
- Dec 24, 2014
- RIR
- ARIN
- Country
- US
- Delegated
- Dec 24, 2014
- Status
- assigned
Report abuse
Abuse contact
- abuse@
zayo. com - Name
- Abuse
- Phone
- +1-866-236-2824
- Handle
- ABUSE5675-ARIN