Data as of Nov 9, 2026
204.102.228.0/25
No anonymizer space · no proxy exits in 30 daysNavy Network Information Center (NNIC) · space held by CENIC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 204.102.0.0/16 since May 2005 | AS2152 | Business | 37 1 always on | 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 |
|---|---|---|---|---|---|---|
| 204.102.0.0/16 | 65,536 | CENIC | CENIC (CENIC) · US | Direct Allocation | Jul 8, 2024 | abuse@ |
| └ 204.102.228.0/23 | 512 | NPS-1 | Naval Postgraduate School (NPS-69) · US | Reassigned | Dec 5, 2013 | noc@ |
Network & registry
Registry
Holder
- Organization
- CENIC
- Handle
- CENIC
- Range
- 204.
102. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Jul 8, 2024
Origin network
AS257
US
- Name
- Navy Network Information Center (NNIC)
- Type
- Business
- Registered
- Dec 22, 1988
- Domain
- navy.mil
- Industry
- Manufacturing
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- First seen
- Before our records
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS257 | RADB | Naval Postgraduate School | MAINT-AS2150 | Oct 17, 2024 |
Whois
Registration for this announcement
- Range
- 204.
102. 228. 0/ 23 - Netname
- NPS-1
- Registrant
- Naval Postgraduate School
- Organization
- Naval Postgraduate School (NPS-69)
- Org address
- Information Technology and Communication Services, Monterey, CA, 93943
- Org country
- US
- Type
- Reassigned
- Handle
- NET-204-102-228-0-1
- Parent
- NET-204-102-0-0-1
- Created
- Dec 5, 2013
- RIR
- ARIN
- Country
- US
- Delegated
- Jul 8, 2024
- Status
- assigned
Report abuse
Abuse contact
- noc@
nps. edu - Name
- Network Operations Center
- Phone
- +1-831-656-3664
- Handle
- NOC17264-ARIN