Data as of Nov 3, 2026
209.131.0.0/19
No anonymizer space · no proxy exits in 30 days123.Net, Inc.
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 |
|---|---|---|---|---|---|---|
| 209.131.0.0/19 | 8,192 | MICA-CBLK3 | 123.Net, Inc. (NETIN-6) · US | Direct Allocation | Aug 26, 1997 | [email protected] |
| └ 209.131.1.0 - 209.131.2.255 | 512 | MICAWAN | unknown | — | — | — |
| └ 209.131.5.0/24 | 256 | CAFEDOMAIN3 | unknown | — | — | — |
| └ 209.131.6.0/24 | 256 | CAFEDOMAIN | unknown | — | — | — |
| └ 209.131.7.0/24 | 256 | LSG-NET | unknown | — | — | — |
| └ 209.131.8.0/24 | 256 | PASLIN | unknown | — | — | — |
| └ 209.131.9.0/24 | 256 | CLASSICO | unknown | — | — | — |
| └ 209.131.11.0/24 | 256 | QNTM | unknown | — | — | — |
| └ 209.131.12.0/24 | 256 | PROPERNET | unknown | — | — | — |
| └ 209.131.13.0/24 | 256 | HALLWAY | unknown | — | — | — |
| └ 209.131.14.0/24 | 256 | CHRYSLERESD | unknown | — | — | — |
| └ 209.131.15.32 - 209.131.15.64 | 33 | KARMANUSA | unknown | — | — | — |
| └ 209.131.15.96 - 209.131.15.128 | 33 | FRANKSNURSERY | unknown | — | — | — |
| └ 209.131.16.0/24 | 256 | CUPROCESSING | unknown | — | — | — |
| └ 209.131.17.0/24 | 256 | DETROITMWA4 | unknown | — | — | — |
| └ 209.131.18.0/24 | 256 | DETROITMWA3 | unknown | — | — | — |
| └ 209.131.19.0/24 | 256 | DETROITMWA2 | unknown | — | — | — |
| └ 209.131.20.32 - 209.131.20.62 | 31 | CAFEDOMAIN1 | unknown | — | — | — |
| └ 209.131.20.128/27 | 32 | TRIAD2 | unknown | — | — | — |
| └ 209.131.20.160/27 | 32 | PWCPA | unknown | — | — | — |
| └ 209.131.20.192/26 | 64 | TRIAD3 | unknown | — | — | — |
| └ 209.131.21.0/24 | 256 | DETROITMWA1 | unknown | — | — | — |
| └ 209.131.22.32/27 | 32 | AVENG | unknown | — | — | — |
| └ 209.131.22.96/27 | 32 | NUPLAS | unknown | — | — | — |
| └ 209.131.22.128/27 | 32 | WTRUCK | unknown | — | — | — |
| └ 209.131.22.160 - 209.131.22.223 | 64 | LADRIERE | unknown | — | — | — |
| └ 209.131.23.0/24 | 256 | DETROITMWA7 | unknown | — | — | — |
| └ 209.131.24.0/24 | 256 | DETROITMWA6 | unknown | — | — | — |
| └ 209.131.25.0/24 | 256 | DETROITMWA | unknown | — | — | — |
| └ 209.131.26.0/24 | 256 | SHGINC | unknown | — | — | — |
| └ 209.131.27.0/24 | 256 | MCL-NET | unknown | — | — | — |
| └ 209.131.28.0/24 | 256 | NETEXP | unknown | — | — | — |
| └ 209.131.29.0/24 | 256 | MONSYS | unknown | — | — | — |
| └ 209.131.30.32/27 | 32 | CUCENTRAL | unknown | — | — | — |
| └ 209.131.30.64 - 209.131.30.94 | 31 | IACOM | unknown | — | — | — |
| └ 209.131.30.96/27 | 32 | FDYN | unknown | — | — | — |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
8,192 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Business | 5,856 | 71% | 34 | |
| Unknown | 2,336 | 29% | 13 |
Network & registry
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 this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Jul 2014 · 12 yr
- Origin networks
- 2
- Last change of origin
- Jul 2014
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 209.131.0.0/19 | AS12129 | /19 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 209.131.0.0/19
- Netname
- MICA-CBLK3
- 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-209-131-0-0-1
- Parent
- NET-209-0-0-0-0
- Created
- Aug 26, 1997
- RIR
- ARIN
- Country
- US
- Delegated
- Aug 26, 1997
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- Ryan Duda
- Phone
- +1-248-228-8200
- Handle
- RD1464-ARIN