Data as of Nov 5, 2026
128.220.222.0/24
No anonymizer space · no proxy exits in 30 daysJohns Hopkins University
Network & registry
Announced by
Covering announcement 128.220.0.0/16
- Prefix
- 128.220.0.0/16
- Announced by
- AS5723 Johns Hopkins University
- Type
- Business
- Proxy exits
- 20
- Always-on exits
- 1
- RPKI
- RPKI valid
- Netname
- JHU
- Registrant
- Johns Hopkins University
- RIR
- ARIN
Routing timeline
Who has announced 128.220.0.0/16
128.220.0.0/16
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 21 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 128.220.0.0/16 | AS5723 | /24 | ARIN | RPKI valid |
| 128.220.0.0/16 | AS198949 | /24 | ARIN | Another network |
IRR
Route objects on 128.220.0.0/16
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS5723 | RADB | Proxy-registered route object for NOAA N-Wave | MAINT-AS10886 | Nov 13, 2023 |
| AS5723 | ARIN | JHU 128.220.0.0/16 | MNT-JHU-Z | Jun 22, 2021 |
| AS198949 not the origin | RADB | MAX_JHU | MAINT-AS198949 | Nov 13, 2023 |
| AS198949 not the origin | ARIN | Hopkins Information Technology Services | MNT-JHU-Z | Jun 22, 2021 |
Whois
Registration for this announcement
- Range
- 128.
220. 0. 0/ 16 - Netname
- JHU
- Registrant
- Johns Hopkins University
- Organization
- Johns Hopkins University (JHU-Z)
- Org address
- Hopkins Information Technology Services, Baltimore, MD, 21218
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-128-220-0-0-1
- Parent
- NET-128-0-0-0-0
- Created
- Mar 24, 1987
- RIR
- ARIN
- Country
- US
- Delegated
- Mar 24, 1987
- Status
- assigned
Report abuse
Abuse contact
- noc@
jhu. edu - Name
- Network Operation Center
- Phone
- +1-410-516-4357
- Handle
- DZ24-ARIN