Data as of Nov 3, 2026
131.239.57.0/24
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 |
|---|---|---|---|---|---|
| 131.239.0.0/16 since Nov 2021 | AS46887 | Internet provider | 185 27 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 |
|---|---|---|---|---|---|---|
| 131.239.0.0/16 | 65,536 | ZAYO-CCF-131-239-0-0 | Zayo Bandwidth (ZAYOB) · US | Direct Allocation | Feb 6, 1989 | [email protected] |
| └ 131.239.57.0/24 | 256 | LVXY-110541-001 | Mandarin Oriental (C02749541) · US | Reassigned | May 4, 2011 | [email protected] via ZAYO-CCF-131-239-0-0 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Registry
Holder
- Organization
- Zayo Bandwidth
- Handle
- ZAYOB
- Range
- 131.239.0.0/16
- Registration type
- Direct Allocation
- Record created
- Feb 6, 1989
- Legacy
- yes
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 2011
- Current origin since
- Sep 2011 · 15 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS46887 | RADB | CCFL-10 Mandarin Oriental | MAINT-AS27506 | May 23, 2025 |
Whois
Registration for this announcement
- Range
- 131.239.57.0/24
- Netname
- LVXY-110541-001
- Registrant
- Mandarin Oriental
- Organization
- Mandarin Oriental (C02749541)
- Type
- Reassigned
- Handle
- NET-131-239-57-0-1
- Parent
- NET-131-239-0-0-1
- Created
- May 4, 2011
- RIR
- ARIN
- Country
- US
- Delegated
- Feb 6, 1989
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- Abuse
- Phone
- +1-866-236-2824
- Handle
- ABUSE5675-ARIN