Data as of Nov 9, 2026
204.238.236.0/24
No anonymizer space · no proxy exits in 30 daysCrown Castle Fiber LLC · space held by 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 |
|---|---|---|---|---|---|---|
| 204.238.236.0/24 | 256 | ZAYO-CCF-204-238-236-0 | Zayo Bandwidth (ZAYOB) · US | Direct Allocation | Jun 13, 1995 | abuse@ |
| └ 204.238.236.0/26 | 64 | FPLFI-REGUSMANAG-DIA-105412-1 | unknown | — | — | — |
| └ 204.238.236.64/28 | 16 | FPLFI-IMAGEPHOTO-DIA-111388-1 | unknown | — | — | — |
| └ 204.238.236.80/29 | 8 | FPLFI-BLUEMOONAC-116753-1 | unknown | — | — | — |
| └ 204.238.236.88/29 | 8 | FPLFI-4770BISCAY-DIA-107690-1 | unknown | — | — | — |
| └ 204.238.236.96/29 | 8 | FPLFI-LAWOFFICES-DIA-103091-1 | unknown | — | — | — |
| └ 204.238.236.120/29 | 8 | FPLFI-WOODFOREST-DIA-134274-1 | unknown | — | — | — |
| └ 204.238.236.128/26 | 64 | FPLFI-DUPONTPUBL-DIA-103439-1 | unknown | — | — | — |
| └ 204.238.236.200/30 | 4 | NET-CCF---204-238-236-200-30 | unknown | — | — | — |
| └ 204.238.236.216/29 | 8 | FPLFI-LEARNINGSC-DIA-103035-1 | unknown | — | — | — |
| └ 204.238.236.224/29 | 8 | FPLFI-AMERICANGU-DIA-102583-1 | unknown | — | — | — |
| └ 204.238.236.232/30 | 4 | NET-Z-CCF-0-204-238-236-232-30 | unknown | — | — | — |
| └ 204.238.236.240/28 | 16 | FPLFI-GLHOMESOFL-DIA-103460-1 | unknown | — | — | — |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
256 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Business | 208 | 81% | 10 | |
| Internet provider | 48 | 19% | 3 |
Network & registry
Origin network
AS33132
US
- Name
- Crown Castle Fiber LLC
- Type
- Internet provider
- Registered
- Oct 7, 2004
- Domain
- zayo.com
- Website
- www.crowncastle.com/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Oct 2013 · 13 yr
- Origin networks
- 2
- Last change of origin
- Oct 2013
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 204.
238. 236. 0/ 24 - Netname
- ZAYO-CCF-204-238-236-0
- Registrant
- Zayo Bandwidth
- Organization
- Zayo Bandwidth (ZAYOB)
- Org address
- 1401 Wynkoop St., Denver, CO, 80202
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-204-238-236-0-1
- Parent
- NET-204-0-0-0-0
- Created
- Jun 13, 1995
- RIR
- ARIN
- Country
- US
- Delegated
- Jun 13, 1995
- Status
- assigned
Report abuse
Abuse contact
- abuse@
zayo. com - Name
- Abuse
- Phone
- +1-866-236-2824
- Handle
- ABUSE5675-ARIN