Data as of Nov 6, 2026
207.157.12.0/22
No anonymizer space · no proxy exits in 30 daysAlabama Supercomputer Authority
Announcement
this exact prefix
RPKI valid
Announced by
Type
Business
Recent change
New origin Jun 2026
its first announcement on record
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 207.157.0.0/17 since May 2005 | AS3464 | Business | 22 1 always on | Alabama Supercomputer Authority |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 207.157.13.0/24 since Jul 2026 | AS3464 | Business | Alabama Supercomputer Authority | |
| 207.157.14.0/23 since Jun 2026 | AS3464 | Business | Alabama Supercomputer Authority |
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 |
|---|---|---|---|---|---|---|
| 207.157.0.0/17 | 32,768 | ASC-NET4 | Alabama Supercomputer Authority (ASC-Z) · US | Direct Allocation | Jul 25, 1996 | bgpadmin@ |
| └ 207.157.12.0/26 | 64 | NETBLK-ASC-NET | unknown | — | — | — |
| └ 207.157.12.128/26 | 64 | NETBLK-ASC-NET | unknown | — | — | — |
| └ 207.157.13.0/26 | 64 | NETBLK-ASC-NET | unknown | — | — | — |
| └ 207.157.13.128/26 | 64 | NETBLK-ASC-NET | unknown | — | — | — |
| └ 207.157.14.0/25 | 128 | NETBLK-ASC-NET | unknown | — | — | — |
| └ 207.157.14.128/29 | 8 | NETBLK-ASC-NET | unknown | — | — | — |
| └ 207.157.15.0/24 | 256 | NETBLK-ASC-NET | unknown | — | — | — |
Network & registry
Origin network
AS3464
US
- Name
- Alabama Supercomputer Authority
- Type
- Education
- Registered
- Mar 4, 1994
- Domain
- asc.edu
- Website
- www.asc.edu
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Jun 2026
- Current origin since
- Jun 2026 · 5 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 207.157.0.0/17 | AS3464 | /24 | ARIN | RPKI valid |
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
- +1-256-971-7448
- Handle
- MD3-ORG-ARIN