asn.dev

Autonomous system

AS21784 AUCRWWL - The Robert W. Woodruff Library of the Atlanta University Center, Inc.

Unclassified ARIN

IPv4 addresses 512 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

Robert W. Woodruff Library of the Atlanta University Center

United States of America · AI-generated

education library academic

AUCRWWL is operated by The Robert W. Woodruff Library of the Atlanta University Center, Inc.

What it's used for

  • The address space is registered under the netname RWWLAUC-1 for the library, indicating an institutional academic network.
  • The AS announces 512 IPv4 addresses within a single prefix (216.150.22.0/23) and maintains 3 observed neighbours, a ratio consistent with a small, self-contained site network rather than a transit provider.

Notable

  • The RDAP registrant matches the AS holder exactly, confirming direct ownership of the announced space.
  • The inventory consists of a single contiguous IPv4 block with no IPv6 prefixes, reflecting a legacy or limited-scope deployment typical of specific institutional departments.

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

3 upstream, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS7725Comcast Cable Communications, LLC58
AS174Cogent Communications, LLC54
AS10490Georgia Institute of Technology6

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-07, 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 1 prefixes · 512 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America1

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS21784
Registry name
AUCRWWL
Registrant
The Robert W. Woodruff Library of the Atlanta University Center, Inc.
Abuse contact
kbanks@auctr.edu
Registered
2012-06-07
Last changed
2024-02-29
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 2 valid, 0 with no ROA
ROAs
2 authorising AS21784
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
2 naming AS21784

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: 454 networks and 1,852 prefixes, as published 2026-11-08. 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