Data as of Nov 15, 2026
207.157.74.0/24
No anonymizer space · no proxy exits in 30 daysUniversity of Alabama in Huntsville · space held by Alabama Supercomputer Authority
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 207.157.0.0/17 since May 2005 | AS3464 | Business | 28 1 always on | Alabama Supercomputer Authority |
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 |
|---|---|---|---|---|---|---|
| 207.157.0.0/17 | 32,768 | ASC-NET4 | Alabama Supercomputer Authority (ASC-Z) · US | Direct Allocation | Jul 25, 1996 | bgpadmin@ |
| └ 207.157.74.0/24 | 256 | NETBLK-ASC-NET | unknown | — | — | — |
Network & registry
Announced by
Covering announcement 207.157.74.0/23
- Prefix
- 207.157.74.0/23
- Announced by
- AS10364 University of Alabama in Huntsville
- Type
- Business
- RPKI
- RPKI valid
- Netname
- ASC-NET4
- Registrant
- Alabama Supercomputer Authority
- RIR
- ARIN
Origin network
AS10364
US
- Name
- University of Alabama in Huntsville
- Type
- Education
- Registered
- Jul 11, 1997
- Domain
- uah.edu
- Website
- www.uah.edu/oit
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
207.157.74.0/23
Routing history
- Pattern
- Rotating
- First seen
- Oct 2005
- Current origin since
- May 2017 · 9.5 yr
- Origin networks
- 2
- Last change of origin
- Nov 2022
Recorded history
History
- Handoffs
- 3
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 207.157.74.0/23 | AS10364 | /23 | ARIN | RPKI valid |
| 207.157.0.0/17 | AS3464 | /24 | ARIN | Another network |
IRR
Route objects on 207.157.74.0/23
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS10364 | RADB | NSSTC allocated | MAINT-AS3464 | Oct 10, 2025 |
Whois
Registration for this announcement
- Range
- 207.
157. 0. 0/ 17 - Netname
- ASC-NET4
- Registrant
- Alabama Supercomputer Authority
- Organization
- Alabama Supercomputer Authority (ASC-Z)
- Org address
- 686 Discovery Dr., Huntsville, AL, 35806
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-207-157-0-0-1
- Parent
- NET-207-0-0-0-0
- Created
- Jul 25, 1996
- RIR
- ARIN
- Country
- US
- Delegated
- Jul 25, 1996
- Status
- assigned
Report abuse
Abuse contact
- bgpadmin@
asc. edu - Name
- R
- Phone
- +1-256-971-7491
- Handle
- MD3-ORG-ARIN