Data as of Nov 3, 2026
72.252.45.0/24
No anonymizer space · no proxy exits in 30 daysColumbus Networks USA, Inc.
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 72.252.0.0/16 | 65,536 | COLUMBUS-NETWORKS-3 | Columbus Networks USA, Inc. (CNU-6) · US | Direct Allocation | Jan 19, 2005 | [email protected] |
| └ 72.252.40.0 - 72.252.71.255 | 8,192 | NWN-4-BLK040-071 | unknown | — | — | — |
Network & registry
Announced by
Covering announcement 72.252.0.0/16
- Prefix
- 72.252.0.0/16
- Announced by
- AS23520 Columbus Networks USA, Inc.
- Type
- Residential
- Proxy exits
- 7,109
- Always-on exits
- 1,712
- RPKI
- No RPKI
- Netname
- COLUMBUS-NETWORKS-3
- Registrant
- Columbus Networks USA, Inc. (CNU-6)
- RIR
- ARIN
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
Who has announced 72.252.0.0/16
72.252.0.0/16
Routing history
- Pattern
- Stable
- First seen
- Apr 2006
- Current origin since
- Apr 2006 · 21 yr
- Origin networks
- 1
IRR
Route objects on 72.252.0.0/16
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS23520 | RADB | COLUMBUS NETWORKS BLOCK | MAINT-AS23520 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- Not stated by the registry
- Netname
- COLUMBUS-NETWORKS-3
- Registrant
- Columbus Networks USA, Inc. (CNU-6)
- Organization
- Not stated by the registry
- Created
- Jan 19, 2005
- RIR
- ARIN
- Country
- US
- Delegated
- Jan 19, 2005
- Status
- assigned