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Data as of Nov 6, 2026

199.20.25.0/24

No anonymizer space · no proxy exits in 30 days

Alabama Supercomputer Authority

Announcement
this exact prefix
RPKI valid
Announced by
AS3464
Type
Business
Risk
0 / 100 · Low
Recent change
New origin Jun 2026
from AS3464 Alabama Supercomputer Authority, after 15.9 years unannounced

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
199.20.16.0/20
since May 2005
AS3464Business6Alabama 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.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
199.20.16.0/204,096NETBLK-ASC-NETAlabama Supercomputer Authority (ASC-Z) · USDirect AllocationOct 11, 1993bgpadmin@asc.edu
└ 199.20.25.0/24256NETBLK-ASC-NETSamford University (C02364276) · USReassignedNov 23, 2009bgpadmin@asc.edu
via NETBLK-ASC-NET

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

AnnouncementRouting historyRPKI & IRRWhois & abuse
Registry

Holder

Organization
Alabama Supercomputer Authority
Handle
ASC-Z
Range
199.20.16.0/20
Registration type
Direct Allocation
Record created
Oct 11, 1993
Legacy
yes
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