asn.dev

Autonomous system

AS17196 COD-GE-IL

Unclassified APNIC

IPv4 addresses 512 1 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

College of DuPage

United States of America · AI-generated

education business campus

The AS handle COD-GE-IL is held by College of DuPage.

What it's used for

  • The address space carries institutional traffic, evidenced by the netname CODNET1 and reverse DNS entries like dyn126-05.cod.edu.
  • The AS announces 512 IPv4 addresses within a single prefix (192.203.136.0/23) and maintains 2 observed neighbours, a ratio consistent with a self-contained campus network rather than a transit provider.

Notable

  • The RDAP registrant College of duPage matches the AS holder and the netname CODNET1, confirming consistent ownership.
  • The inventory consists of a single contiguous /23 block, indicating a finely subdivided internal corporate estate typical of higher education institutions.

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
AS33491Comcast Cable Communications, LLC53
AS6325Illinois Century Network10

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, 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

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS17196
Registry name
COD-GE-IL
Registrant
College of duPage
Abuse contact
Bukowski@cod.edu
Registered
2000-08-04
Last changed
2019-06-27
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 1 valid, 0 with no ROA
ROAs
1 authorising AS17196
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS17196

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 1,781 prefixes, as published 2026-10-16. 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