Data as of Nov 9, 2026
173.225.58.0/24
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 |
|---|---|---|---|---|---|
| 173.225.56.0/22 since Nov 2021 | AS46887 | Internet provider | Zayo Bandwidth | ||
| 173.225.48.0/20 since Oct 2025 | AS46887 | Internet provider | 7 | 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 |
|---|---|---|---|---|---|---|
| 173.225.48.0/20 | 4,096 | ZAYO-CCF-173-225-48-0 | Zayo Bandwidth (ZAYOB) · US | Direct Allocation | Jan 26, 2010 | abuse@ |
| └ 173.225.58.0/29 | 8 | DIGITAL-BACK-OFFICE | unknown | — | — | — |
| └ 173.225.58.8/29 | 8 | DIGITAL-BACK-OFFICE | unknown | — | — | — |
| └ 173.225.58.16/30 | 4 | REPRODUCTIVE-MEDICINE-ASSOCIATES | unknown | — | — | — |
| └ 173.225.58.24/29 | 8 | HUBBELL-INC | unknown | — | — | — |
| └ 173.225.58.32/27 | 32 | QUICKCOMM | unknown | — | — | — |
| └ 173.225.58.64/27 | 32 | CITY-OF-DANBURY | unknown | — | — | — |
| └ 173.225.58.96/29 | 8 | THE-CHAPIN-AND-BANG-COMPANY | unknown | — | — | — |
| └ 173.225.58.104/29 | 8 | NOBLES-AMERICA-CORP | unknown | — | — | — |
| └ 173.225.58.112/29 | 8 | FIBERTECH-NETWORKS | unknown | — | — | — |
| └ 173.225.58.120/29 | 8 | LIFECARE | unknown | — | — | — |
| └ 173.225.58.128/30 | 4 | AVON-PRODUCTS | unknown | — | — | — |
| └ 173.225.58.136/29 | 8 | MORAN-TOWING-CORP | unknown | — | — | — |
| └ 173.225.58.144/28 | 16 | ATLANTIC-ASSET-MANAGEMENT | unknown | — | — | — |
| └ 173.225.58.160/28 | 16 | LIFECARE | unknown | — | — | — |
| └ 173.225.58.176/29 | 8 | SSARIS-ADVISORS-LLC | unknown | — | — | — |
| └ 173.225.58.184/30 | 4 | CHIMENET | unknown | — | — | — |
| └ 173.225.58.192/27 | 32 | GERA-DANBURY-THE-MATRIX-CORP-CENTER | unknown | — | — | — |
| └ 173.225.58.224/28 | 16 | MORAN-TOWING-GROUP | unknown | — | — | — |
| └ 173.225.58.240/28 | 16 | MORAN-TOWING-GROUP | 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 | 244 | 95% | 19 | |
| Internet provider | 12 | 4.7% | 3 |
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
- Jun 2010
- Current origin since
- May 2019 · 7.5 yr
- Origin networks
- 2
- Last change of origin
- May 2019
Recorded history
History
- Handoffs
- 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
- 173.
225. 48. 0/ 20 - Netname
- ZAYO-CCF-173-225-48-0
- Registrant
- Zayo Bandwidth
- Organization
- Zayo Bandwidth (ZAYOB)
- Org address
- 1401 Wynkoop St., Denver, CO, 80202
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-173-225-48-0-1
- Parent
- NET-173-0-0-0-0
- Created
- Jan 26, 2010
- RIR
- ARIN
- Country
- US
- Delegated
- Jan 26, 2010
- Status
- assigned
Report abuse
Abuse contact
- abuse@
zayo. com - Name
- Abuse
- Phone
- +1-866-236-2824
- Handle
- ABUSE5675-ARIN