Data as of Nov 11, 2026
192.154.4.0/23
No anonymizer space · no proxy exits in 30 daysUniversity of California at Berkeley
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 |
|---|---|---|---|---|---|---|
| 192.154.4.0/24 | 256 | NET-SEQUOIA1 | University of California at Berkeley (UCAB-1-Z) · US | Direct Allocation | Mar 31, 1992 | abuse@ |
| 192.154.5.0/24 | 256 | NET-SEQUOIA2 | University of California at Berkeley (UCAB-1-Z) · US | Direct Allocation | Mar 31, 1992 | abuse@ |
Network & registry
Registry
Holder
- Organization
- Not stated by the registry
Origin network
AS25
US
- Name
- University of California at Berkeley
- Type
- Education
- Registered
- Aug 3, 1984
- Domain
- berkeley.edu
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS25 | RADB | University of California, Berkeley | MAINT-AS25 | Nov 13, 2023 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 192.154.4.0/24 | AS25 | RADB | University of California, Berkeley | MAINT-AS25 | Nov 13, 2023 |
| 192.154.5.0/24 | AS25 | RADB | University of California, Berkeley | MAINT-AS25 | Nov 13, 2023 |
Whois
Registration for this announcement
192.154.4.0/23 spans several registrations: 2 records are listed under Registrations.
- RIR
- ARIN
- Country
- US
- Delegated
- Mar 31, 1992
- Status
- assigned