Data as of Nov 5, 2026
157.21.0.0/16
No anonymizer space · no proxy exits in 30 daysOld Dominion University
Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Recent change
New origin Sep 2026
from AS53446 Eastern Virginia Medical School
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 157.21.0.0/18 | AS1201 | Business | Old Dominion University | |
| 157.21.64.0/18 | AS1201 | Business | Old Dominion University | |
| 157.21.128.0/18 | AS1201 | Business | Old Dominion University | |
| 157.21.192.0/18 | AS1201 | Business | Old Dominion University |
Network & registry
Origin network
AS1201
US
- Name
- Old Dominion University
- Type
- Education
- Registered
- Dec 18, 1990
- Domain
- odu.edu
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- May 2005
- Current origin since
- Sep 2026 · 2 mo
- Origin networks
- 4
- Last change of origin
- Sep 2026
Recorded history
History
- Handoffs
- 3
IRR
Route objects on the exact prefix
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 157.21.0.0/17 | AS1201 | RADB | OLDDOMINIONUNIVERSITY | MAINT-AS1201 | Sep 16, 2026 |
| 157.21.128.0/17 | AS1201 | RADB | OLDDOMINIONUNIVERSITY | MAINT-AS1201 | Sep 16, 2026 |
Whois
Registration for this announcement
- Range
- 157.
21. 0. 0/ 16 - Netname
- NET-157-21-0-0
- Registrant
- Old Dominion University
- Organization
- Old Dominion University (ODU)
- Org address
- Old Dominion University, Norfolk, VA, 23529
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-157-21-0-0-1
- Parent
- NET-157-0-0-0-0
- Created
- Dec 12, 1991
- RIR
- ARIN
- Country
- US
- Delegated
- Dec 12, 1991
- Status
- assigned
Report abuse
Abuse contact
- abuse@
odu. edu - Name
- Abuse
- Phone
- +1-757-683-5113
- Handle
- ABUSE232-ARIN