Data as of Nov 14, 2026
204.85.240.0/22
No anonymizer space · no proxy exits in 30 daysMCNC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 204.84.0.0/15 since May 2005 | AS81 | Business | 89 3 always on | MCNC |
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 204.84.0.0/15 | 131,072 | NCREN-CIDR3 | MCNC (MCNC-Z) · US | Direct Allocation | Jun 30, 1994 | abuse@ |
| └ 204.85.192.0/18 | 16,384 | UNCHEALTH-NCREN-IPV4-1 | UNC Health (C11568849) · US | Reassigned | Apr 14, 2026 | abuse@ via NCREN-CIDR3 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Announced by
Covering announcement 204.85.192.0/18
- Prefix
- 204.85.192.0/18
- Announced by
- AS81 MCNC
- Type
- Business
- Proxy exits
- 13
- RPKI
- RPKI valid
- Netname
- UNCHEALTH-NCREN-IPV4-1
- Registrant
- UNC Health
- RIR
- ARIN
IPv4 market
Holder
- Organization
- MCNC
- Handle
- MCNC-Z
- Range
- 204.
84. 0. 0/ 15 - Registration type
- Direct Allocation
- Record created
- Jun 30, 1994
- Legacy
- yes
Origin network
AS81
US
- Name
- MCNC
- Type
- Education
- Registered
- Aug 7, 1986
- Domain
- mcnc.org
- Website
- www.mcnc.org
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
204.85.192.0/18
Routing history
- Pattern
- Stable
- First seen
- Aug 2006
- Current origin since
- Oct 2013 · 13 yr
- Origin networks
- 2
- Last change of origin
- Oct 2013
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 204.85.192.0/18 | AS81 | /18 | ARIN | RPKI valid |
| 204.84.0.0/15 | AS81 | /15 | ARIN | Too specific |
IRR
Route objects on 204.85.192.0/18
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS81 | ARIN | Autogenerated route object | MNT-MCNC-Z | Feb 12, 2026 |
Whois
Registration for this announcement
- Range
- 204.
85. 192. 0/ 18 - Netname
- UNCHEALTH-NCREN-IPV4-1
- Registrant
- UNC Health
- Organization
- UNC Health (C11568849)
- Type
- Reassigned
- Handle
- NET-204-85-192-0-1
- Parent
- NET-204-84-0-0-1
- Created
- Apr 14, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Jun 30, 1994
- Status
- assigned
Report abuse
Abuse contact
- abuse@
mcnc. org - Name
- Abuse Contact
- Phone
- +1-919-248-4111
- Handle
- ABUSE3348-ARIN