Data as of Nov 6, 2026
204.12.172.0/24
No anonymizer space · no proxy exits in 30 daysNebius Inc.
Network & registry
Announced by
Covering announcement 204.12.172.0/23
- Prefix
- 204.12.172.0/23
- Announced by
- AS53428 Nebius Inc.
- Type
- Hosting
- RPKI
- RPKI valid
- Netname
- NB-374
- Registrant
- Nebius Inc.
- RIR
- ARIN
Origin network
AS53428
US
- Name
- Nebius Inc.
- Type
- Hosting
- Registered
- Dec 13, 2024
- Domain
- nebius.com
- Website
- www.nebius.com
- Industry
- Software Development
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 204.12.172.0/23
204.12.172.0/23
Routing history
- Pattern
- Reactivated
- First seen
- Mar 2016
- Current origin since
- Feb 2026 · 9 mo
- Origin networks
- 3
- Last change of origin
- Feb 2026
Recorded history
History
- Handoffs
- 2
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 204.12.172.0/23 | AS53428 | /24 | ARIN | RPKI valid |
IRR
Route objects on 204.12.172.0/23
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS53428 | ARIN | Baremetal | MNT-NB-374 | Jun 24, 2026 |
Whois
Registration for this announcement
- Range
- 204.
12. 160. 0/ 19 - Netname
- NB-374
- Registrant
- Nebius Inc.
- Organization
- Nebius Inc. (NB-374)
- Org address
- 10 State street, Newburyport, MA, 01950
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-204-12-160-0-1
- Parent
- NET-204-0-0-0-0
- Created
- Feb 4, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Feb 4, 2025
- Status
- assigned
Report abuse
Abuse contact
- alex@
nebius. com - Name
- Simakov, Aleksei
- Phone
- +310617219655
- Handle
- SIMAK-ARIN