asn.dev

Autonomous system

AS32162 CLIU21

Unclassified ARIN

IPv4 addresses 8.19K 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Carbon Lehigh Intermediate Unit 21

United States of America · AI-generated

education business us pa

CLIU21 is operated by Carbon Lehigh Intermediate Unit 21.

What it's used for

  • The address space carries internal network infrastructure for an educational service agency, evidenced by the netnames CLIU-NET-2 and CLIU-NET and the reverse DNS record vl328-ve11.edge.sm.cliu.org.
  • The AS announces 8192 IPv4 addresses across 2 prefixes and maintains 2 observed neighbours, a ratio consistent with a small, self-contained organizational network rather than a transit or large-scale access provider.

Notable

  • The RDAP registrants for both prefixes match the AS holder, listing "Carbon Lehigh Intermediate Unit 21; MIS Department" as the registrant.
  • The address inventory consists of two /20 blocks, 72.2.96.0/20 and 209.18.48.0/20, which are finely subdivided for internal use within the organization.

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

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

ASNetworkPaths seen
AS3737PenTeleData Inc.90
AS6079RCN28

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, 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 2 prefixes · 8.19K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS32162
Registry name
CLIU21
Registrant
Carbon Lehigh Intermediate Unit 21
Abuse contact
mchenrys@cliu.org
Registered
2004-03-12
Last changed
2012-03-02
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
0 authorising AS32162
ASPA
no ASPA record
IRR
0% registered · 0 of 2 announcements
Route objects
0 naming AS32162

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 1,784 prefixes, as published 2026-10-19. 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