asn.dev

Autonomous system

AS15345 AUSTINCC

Unclassified ARIN

IPv4 addresses 7.68K 5 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Austin Community College

United States · AI-generated

education research infrastructure

Reverse names are the address as twelve digits with no separators, and two still say dial-up.

What it's used for

  • A community college network. Five IPv4 prefixes and one IPv6 /48 announced from the United States, through one observed BGP neighbour.

Notable

  • Most answering addresses are named with a single letter followed by the whole address, every octet padded to three digits and run together, giving twelve digits in one unbroken label.
  • Two others are named for a serial line dial-up protocol with a port number, a technology retired decades ago and still described in the college's zone.
  • Two of the five blocks are registered to a state university system under netnames naming a shared education network.
  • The college's own blocks use three different netname formats, one with a counter, one hyphenated, one with an abbreviation for network block.
  • Fifteen addresses were queried for reverse DNS and eight returned a name.

Interesting

  • Twelve unbroken digits is machine friendly and human hostile. It parses only if you know the padding rule, and it is the least readable address encoding in this range.
  • The dial-up names date the zone better than any registry field. Somebody generated them for a modem pool, the pool went away, and the records outlived it.
  • Blocks held by a state system inside a college's routing is how public education networks are usually built: the system holds the address space, the institution announces its own share.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS6922Texas Department of Information Resources681

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-21, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 5 prefixes · 7.68K addresses IPv6 1 prefixes

CountryNamePrefixes
USUnited States of America6

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS15345
Registry name
AUSTINCC
Registrant
Austin Community College
Abuse contact
brian.rose@austincc.edu
Registered
2020-08-03
Last changed
2020-08-03
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 12 with no ROA
ROAs
0 authorising AS15345
ASPA
no ASPA record
IRR
0% registered · 0 of 12 announcements
Route objects
4 naming AS15345

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,779 prefixes, as published 2026-10-22. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check