Data as of Nov 5, 2026
151.181.68.0/23
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 |
|---|---|---|---|---|---|
| 151.181.68.0/22 since Mar 2026 | AS46887 | Internet provider | 1 | Zayo Bandwidth | |
| 151.181.64.0/19 since Dec 2018 | AS46887 | Internet provider | 18 4 always on | 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 |
|---|---|---|---|---|---|---|
| 151. | 16,384 | ZAYO-CCF-151-181-32-0 | Zayo Bandwidth (ZAYOB) · US | Direct Allocation | Dec 20, 2013 | abuse@ |
| └ 151.181.68.0/28 | 16 | SASCO-CAPITAL-2 | unknown | — | — | — |
| └ 151.181.68.16/31 | 2 | SAGARD-CAPITAL | unknown | — | — | — |
| └ 151.181.68.18/31 | 2 | PRAXAIR | unknown | — | — | — |
| └ 151.181.68.20/30 | 4 | FUNDSMITH-PARTNERS-US-LLC | unknown | — | — | — |
| └ 151.181.68.24/29 | 8 | RURAL-GAS-COMPANY | unknown | — | — | — |
| └ 151.181.68.32/28 | 16 | SAGARD-CAPITAL-2 | unknown | — | — | — |
| └ 151.181.68.48/29 | 8 | INSIDE-NGO | unknown | — | — | — |
| └ 151.181.68.56/29 | 8 | VERDE-ENERGY-USA-2 | unknown | — | — | — |
| └ 151.181.68.64/27 | 32 | SHARON-HOSPITAL-A | unknown | — | — | — |
| └ 151.181.68.96/29 | 8 | AFFILIATED-MANAGERS-GROUP-INC | unknown | — | — | — |
| └ 151.181.68.104/29 | 8 | BCK-CAPITAL-MANAGEMENT-LP | unknown | — | — | — |
| └ 151.181.68.112/29 | 8 | FUNDSMITH-PARTNERS-US | unknown | — | — | — |
| └ 151.181.68.128/28 | 16 | NET-151-181-68-128-28 | unknown | — | — | — |
| └ 151.181.68.144/29 | 8 | NET-151-181-68-144-29 | unknown | — | — | — |
| └ 151.181.68.160/28 | 16 | NET-151-181-68-160-28 | unknown | — | — | — |
| └ 151.181.69.0/28 | 16 | NET-151-181-69-0-28 | unknown | — | — | — |
| └ 151.181.69.32/28 | 16 | NET-151-181-69-32-28 | unknown | — | — | — |
| └ 151.181.69.56/29 | 8 | NET-151-181-69-56-29 | unknown | — | — | — |
| └ 151.181.69.72/29 | 8 | NET-151-181-69-72-29 | unknown | — | — | — |
| └ 151.181.69.128/26 | 64 | NET-151-181-69-128-26 | unknown | — | — | — |
| └ 151.181.69.200/29 | 8 | NET-151-181-69-200-29 | unknown | — | — | — |
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 | |
|---|---|---|---|---|
| Internet provider | 392 | 77% | 1 | |
| Business | 120 | 23% | 12 |
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
- 151.
181. 32. 0 - 151. 181. 95. 255 - Netname
- ZAYO-CCF-151-181-32-0
- Registrant
- Zayo Bandwidth
- Organization
- Zayo Bandwidth (ZAYOB)
- Org address
- 1401 Wynkoop St., Denver, CO, 80202
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-151-181-32-0-1
- Parent
- NET-151-0-0-0-0
- Created
- Dec 20, 2013
- RIR
- ARIN
- Country
- US
- Delegated
- Dec 20, 2013
- Status
- assigned
Report abuse
Abuse contact
- abuse@
zayo. com - Name
- Abuse
- Phone
- +1-866-236-2824
- Handle
- ABUSE5675-ARIN