Data as of Nov 15, 2026
205.155.66.0/23
No anonymizer space · no proxy exits in 30 daysCENIC
Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Risk
0 / 100 · Low
Recent change
New origin Sep 18, 2026
from AS2152 CENIC, after 3.4 years unannounced
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 205.155.0.0/16 since May 2005 | AS2152 | Business | 80 | CENIC |
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 |
|---|---|---|---|---|---|---|
| 205.155.0.0/16 | 65,536 | CENIC | CENIC (CENIC) · US | Direct Allocation | Jul 8, 2024 | abuse@ |
| └ 205. | 1,537 | CSUMB-205-155-66-72 | CSU Monterey Bay (CMB) · US | Reassigned | Jun 10, 2016 | abuse@ |
Network & registry
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Aug 2019
- Current origin since
- Sep 18, 2026 · 2 mo
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 205.
155. 66. 0 - 205. 155. 72. 0 - Netname
- CSUMB-205-155-66-72
- Registrant
- CSU Monterey Bay
- Organization
- CSU Monterey Bay (CMB)
- Org address
- 100 Campus Center, Seaside, CA, 93955-8001
- Org country
- US
- Type
- Reassigned
- Handle
- NET-205-155-66-0-1
- Parent
- NET-205-155-0-0-1
- Created
- Jun 10, 2016
- RIR
- ARIN
- Country
- US
- Delegated
- Jul 8, 2024
- Status
- assigned
Report abuse
Abuse contact
- abuse@
cenic. org - Name
- CENIC Abuse
- Phone
- +1-714-220-3494
- Handle
- ABUSE711-ARIN