Data as of Nov 7, 2026
74.113.50.0/23
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 | Holder | RPKI |
|---|---|---|---|---|
| 74.113.48.0/21 since Dec 2018 | AS46887 | Internet provider | Zayo Bandwidth |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 74.113.50.0/24 since Feb 2021 | AS46887 | Unknown | Zayo Bandwidth | |
| 74.113.51.0/24 since May 2019 | AS46887 | Internet provider | 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 |
|---|---|---|---|---|---|---|
| 74.113.48.0/21 | 2,048 | ZAYO-CCF-74-113-48-0 | Zayo Bandwidth (ZAYOB) · US | Direct Allocation | Mar 22, 2011 | abuse@ |
| └ 74.113.50.0/24 | 256 | ALLISON-TRANSMISSION | Allison Transmission (C04612780) · US | Reassigned | Jun 18, 2013 | abuse@ via ZAYO-CCF-74-113-48-0 |
| └ 74.113.51.0/26 | 64 | HAMILTON-COUNTY | unknown | — | — | — |
| └ 74.113.51.64/30 | 4 | HAMILTON-COUNTY | unknown | — | — | — |
| └ 74.113.51.68/30 | 4 | SEVEN-CORNERS--INC | unknown | — | — | — |
| └ 74.113.51.72/29 | 8 | OURHEALTH | unknown | — | — | — |
| └ 74.113.51.80/30 | 4 | SEVEN-CORNERS--INC | unknown | — | — | — |
| └ 74.113.51.84/30 | 4 | ELITE-BROKERAGE-SERVICES--INC | unknown | — | — | — |
| └ 74.113.51.88/30 | 4 | ELITE-BROKERAGE-SERVICES--INC | unknown | — | — | — |
| └ 74.113.51.96/29 | 8 | FIBERTECH-TURNUP-IPLS | unknown | — | — | — |
| └ 74.113.51.104/29 | 8 | COOK-GENERAL-BIOTECHNOLOGY-2 | unknown | — | — | — |
| └ 74.113.51.196/30 | 4 | NET-74-113-51-196-30 | unknown | — | — | — |
| └ 74.113.51.224/27 | 32 | NET-74-113-51-224-27 | unknown | — | — | — |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
512 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Unknown | 256 | 50% | 1 | |
| Internet provider | 148 | 29% | 2 | |
| Business | 108 | 21% | 9 |
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
- Sep 2021
- Current origin since
- Sep 2021 · 5.1 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
- 74.
113. 48. 0/ 21 - Netname
- ZAYO-CCF-74-113-48-0
- Registrant
- Zayo Bandwidth
- Organization
- Zayo Bandwidth (ZAYOB)
- Org address
- 1401 Wynkoop St., Denver, CO, 80202
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-74-113-48-0-1
- Parent
- NET-74-0-0-0-0
- Created
- Mar 22, 2011
- RIR
- ARIN
- Country
- US
- Delegated
- Mar 22, 2011
- Status
- assigned
Report abuse
Abuse contact
- abuse@
zayo. com - Name
- Abuse
- Phone
- +1-866-236-2824
- Handle
- ABUSE5675-ARIN