Data as of Nov 3, 2026
72.252.72.0/21
No anonymizer space · no proxy exits in 30 daysColumbus Networks USA, Inc.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | RPKI |
|---|---|---|---|---|
| 72.252.0.0/16 since Apr 2006 | AS23520 | Residential | 7,109 1,712 always on |
Network & registry
Origin network
AS23520
US
- Name
- Columbus Networks USA, Inc.
- Type
- Internet provider
- Registered
- Apr 2, 2002
- Domain
- libertynetworks.com
- Website
- libertynetworks.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 2010
- Current origin since
- Sep 2010 · 16 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 72.252.0.0/16
- Netname
- COLUMBUS-NETWORKS-3
- Registrant
- Columbus Networks USA, Inc.
- Organization
- Columbus Networks USA, Inc. (CNU-6)
- Org address
- 15950 West Dixie Highway, North Miami Beach, FL, 33162
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-72-252-0-0-1
- Parent
- NET-72-0-0-0-0
- Created
- Jan 19, 2005
- RIR
- ARIN
- Country
- US
- Delegated
- Jan 19, 2005
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- Rafael Espinosa
- Phone
- +1-786-274-7517
- Handle
- ESPIN222-ARIN