Data as of Nov 9, 2026
66.51.146.128/26
No anonymizer space · no proxy exits in 30 days123.Net, 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 |
|---|---|---|---|---|---|---|
| 66.51.144.0/20 | 4,096 | 123NET-BLK-I123-1 | 123.Net, Inc. (NETIN-6) · US | Direct Allocation | Jan 28, 2004 | rpd@ |
| └ 66.51.146.128/26 | 64 | I123-066051146128-2011111 | unknown | — | — | — |
Network & registry
Announced by
Covering announcement 66.51.144.0/20
- Prefix
- 66.51.144.0/20
- Announced by
- AS12129 123.Net, Inc.
- Type
- Internet provider
- Proxy exits
- 17
- RPKI
- RPKI valid
- Netname
- 123NET-BLK-I123-1
- Registrant
- 123.Net, Inc.
- RIR
- ARIN
Origin network
AS12129
US
- Name
- 123.Net, Inc.
- Type
- Internet provider
- Registered
- Mar 30, 1999
- Domain
- 123.net
- Website
- www.123.net
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 66.51.144.0/20
66.51.144.0/20
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 66.51.144.0/20 | AS12129 | /20 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 66.
51. 144. 0/ 20 - Netname
- 123NET-BLK-I123-1
- Registrant
- 123.Net, Inc.
- Organization
- 123.Net, Inc. (NETIN-6)
- Org address
- 24700 Northwestern Hwy. STE 700, Southfield, MI, 48075
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-66-51-144-0-1
- Parent
- NET-66-0-0-0-0
- Created
- Jan 28, 2004
- RIR
- ARIN
- Country
- US
- Delegated
- Jan 28, 2004
- Status
- assigned
Report abuse
Abuse contact
- rpd@
123. net - Name
- Ryan Duda
- Phone
- +1-248-228-8200
- Handle
- RD1464-ARIN